Fully Homomorphic Encryption and cryptography

Fully Homomorphic Encryption and cryptography Introduction Transferring files between machines (and users) is a common daily occurrence although the confidentiality of the data is a basic condition. Now problem was how to secure them from inadvertent addressee from observing the data, which are supposed to confidential and likely on risk if prepared well-known to negligent parties. In each of these cases, its important to know what options are available to get your file from point A to point B and to comprehend whether the technique you choose provides sufficient security given the sensitivity of the data being transferred. Cryptography is ability of secret text, or more precisely of stock up resource (for a long or shorter period of time) in a shape which allows it to be revealed to those you wish to see it yet hides it from all others. A cryptosystem is a technique to accomplish this. Cryptanalysis is to put into practice to overcome such endeavors to hide information. Cryptology comprises of both cryptography and cryptanalysis. The unique information to be hidden is called plaintext. The concealed information is called ciphertext. Encryption or Decryption is any modus operandi to convert plaintext into ciphertext. A cryptosystem is designed so that decryption can be consummated only under certain conditions, which usually means simply by persons in control of both a decryption engine (these days, generally a computer program) and a meticulous piece in sequence, called the decryption key, which is supplied to the decryption engine in the course of decryption. Plaintext is transformed into ciphertext by process of an encryption engine (again, generally a computer program) whose operation is fixed and determinate (the encryption method) nevertheless which functions in practice in a way dependent on a piece of information (the encryption key) which has a major effect on the output of the encryption process. The main purpose was to make sure privacy while you transferring your private data from one place to another place do not matter electronically or via users. There were many scheme but very complicated to follow them and most important less security. So time by time many scientists discover different techniques but Gentrys technique â€Å"Fully Homomorphic Encryption† got a tremendous value against all technique. All others techniques were performing well but with restriction but Gentrys scheme user can perform unlimited action. Objective Cloud computing Literature review â€Å"Homomorphic encryption is a paradigm that refers to the ability, given encryptions of some messages, to generate an encryption of a value that is related to the original messages. Speciï ¬ cally, this ability means that from encryptions of k messages (m1,†¦,mk), it is possible to generate an encryption of m* = f(m1,†¦,mk) for some (efficiently computable) function f. Ideally, one may want the homomorphically generated encryption of m* to be distributed identically (or statistically close) to a standard encryption of m*. We call schemes that have this property strongly homomorphic. Indeed, some proposed encryption schemes are strongly homomorphic w. r. t some algebraic operations such as addition or multiplication.† (Rothblum R, 2010). â€Å"An encryption method is presented with the novel property that publicly revealing an encryption key does not thereby reveal the corresponding decryption key. This has two important consequences: 1. Couriers or other secure means are not needed to transmit keys, since a message can be enciphered using an encryption key publicly revealed by the intended recipient. Only he can decipher the message, since only he knows the corresponding decryption key. 2. A message can be â€Å"signed† using a privately held decryption key. Anyone can verify this signature using the corresponding publicly revealed encryption key. Signatures cannot be forged, and a signer cannot later deny the validity of his signature. This has obvious applications in â€Å"electronic mail† and â€Å"electronic funds transfer† systems.† (Rivest et al, 1978) â€Å"Homomorphic encryption enables â€Å"computing with encrypted data† and is hence a useful tool for secure protocols. Current homomorphic public key systems have limited homomorphic properties: given two ciphertexts Encrypt (PK, x) and Encrypt (PK, y), anyone can compute either the sum Encrypt (PK, x+y), or the product Encrypt (PK, xy), but not both.† (Boneh et al, 2006) ARMONK, N.Y 25 Jun 2009: â€Å"An IBMResearcher has solved a thorny mathematical problem that has confounded scientists since the invention of public-key encryption several decades ago. The breakthrough, called privacy homomorphism, or fully homomorphic encryption, makes possible the deep and unlimited analysis of encrypted information data that has been intentionally scrambled without sacrificing confidentiality.† (IBM, 2009) â€Å"We propose the first fully homomorphic encryption scheme, solving a central open problem in cryptography. Such a scheme allows one to compute arbitrary functions over encrypted data without the decryption key i.e., given encryptions E(m1) ,†¦,E(mt) of m1,†¦.,mtone can efficiently compute a compact ciphertext that encrypts f(m1,†¦.,mt) for any efficiently computable function Æ’. This problem was posed by Rivest et al. in 1978.† (Gentry C, 2009) â€Å"Searching databases is usually done in the clear. And even if the query is encrypted, it has to be decrypted (revealing its contents) before it can be used by a search engine. Whats worse is that databases themselves are stored as plaintext, available to anyone gaining access. The smarter way to handle sensitive information would be to encrypt the queries, encrypt the database and search it in its encrypted form. Impossible until now, IBMs T.J. Watson Research Center (Yorktown Heights, N.Y.) recently described a homomorphic encryption scheme that allows encrypted data to be searched, sorted and processed without decrypting it. Fully homomorphic encryption schemes theoretically allow ciphertext to be manipulated as easily as plaintext, making it perfect for modern cloud computing, where your data is located remotely.† (Johnson R C, 2009) Body History of Cryptography In earliest era communications or correspondence among recipient and correspondent were only possible through extremely safe and sound way like loyal pigeon, physically or any other source but must be trusted. That was a time when it was very tough to believe or trust on available sources. There was a little doubt and big risk for the sender was if transporter discloses the information then any one can harm them. Progressively a newly ideas came with world called Cryptography/Encryption† means this is a technique in which the sender encrypts the communication using proper key and its only possible for receiver to decrypt it if he possessed the key. Key based Encryption. In key based encryption keys are the most important part of creating new ciphertext. A sequence of small piece used generally in cryptography, letting people to encrypt/decrypt facts and the same key can be used to carry out additional mathematical business as well. Specified a secret message, a key established the connection with the sequence to the ciphertext. The key we use for a special cryptosystem has worth so whenever this key used to ciphertext, always lets the encrypted communication to be decrypted and always doing reverse like encrypt the plaintext. In ancient era because calculation was very hard so they prefer to use not lengthy keys in respect of bits but on the other hand its safe to use longer key. Communications also one can encrypt in n-bit blocks. It is true that the longer a key is, more difficult for one to break the encrypted message. Encryptions consist of two categories. Private Key or Symmetric Key Encryption Public Key or Asymmetric Key Encryption Private Key / Symmetric Key Encryption This was thousands of years ago when Julian Caesar used this scheme to send his communication to his military. He used very simple key based classic cryptographic algorithm in which he just shifted each letter with preplanned key number 4. In his algorithm key varies so thats why we cannot guess what number he will use next. Lets take said number 4 which means â€Å"A† will swap with â€Å"D† and â€Å"B† will swap with â€Å"G† and so on â€Å"X† will swap with â€Å"A† etc. ABCDEFGHIJKLMNOPQRSTUVWXYZ DEFGHIJKLMNOPQRSTUVWXYZABC The same letter changing technique was useful to small case correspondence and also covering around the letters as well. (S. Tewksbury). Cryptography history is very old so we can divide it in to two categories. Classic era Cryptography Computer era Cryptography In classic era there was no computer or any electronic machine to solve this problem so people were used pen and paper to unreveal the truth of letters. Julian Caesar technique is classic era practice. Until WWII all cryptography techniques are none as classic era cryptography. After WWII development of machine made cryptography life very complex and that time was very easy to break all classic time encryptions mostly called key based techniques. Key word was very important in these practices and because of the key it was very easy to break through encryption algorithm. ROT13 is the best practice of encryption algorithm which we know its famous name Caesar cipher and this is extension of Julian Caesar scheme. The most useful technique was ROT13 in which they used fix key 13 to encrypt the letters. This algorithm was very famous in the beginning of computer era and anyone wants to use ROT13 scheme, both side parties must use the same key to encrypt and decrypt the code. This key calle d secret key. The development of the machine set a stander in respect of key codes and then everyone prepared a code book to share as a key code book. For example in ROT13 simply they rotate the letters by 13 places. Application of this scheme is very easy like Julius Caesar technique where he swapped letters with fix key 4 and now in ROT13 with key 13 and wrapping around like â€Å"a† become â€Å"n† and â€Å"m† become â€Å"z† and wrapping continue if necessary but the problem was user can play only English alphabet. The beauty of this technique was it made its function its own inverse like for any text x we can write its function mathematically inverse of ROT13(x) or ROT13 (ROT13(x)) where x is belong to a character which one wants to encrypt. This characteristic furthermore called an involution in arithmetic and a give-and-take code in cryptography. This scheme work as below ABCDEFGHIJKLM ↔ abcdefghijklm NOPQRSTUVWXYZ ↔ nopqrstuvwxyz In this scheme problem was again if someone steel or rob your data then it is very easy to decode it. This is not reasonable cryptographic proposal even though its known as secret key cryptosystem. If we observe closely the ROT13 is partially homomorphic particularly with respect to the concatenation function because it has a reciprocal property. Lets write a function to prove its homomorphic property using secret key 13, in this function we encrypt the text using said algorithm and we will add the encrypted text to see its homomorphic property and then finally decrypt the result. Java ROT13 Code. import java.util.*; public class ROT13 { static int x,y,n,fx,l,m; public static void main(String[] args) { Scanner sc=new Scanner(System.in); System.out.println(Enter your text); String t = sc.nextLine(); int j=0; int key=13; for (int i=0; i { char ch3 = t.charAt(j); if (ch3 >= a ch3 else if (ch3 >= n ch3 else if (ch3 >= A ch3 else if (ch3 >= A ch3 System.out.print(ch3); j++; }}} OUTPUT Enter your text HelloWorld UryybJbeyq The above algorithm is very uncomplicated algorithm to illustrate how ROT13 scheme works and in above output â€Å"Uryyb Jbeyq† is encrypted cipher formed with above algorithm. To check its homomorphic property now anyone can break this cipher text and then apply a concatenation (addition operator) to this text. After getting a new text anyone can apply ROT13 algorithm to decode it to see if he/she is getting the original text. import java.util.*; public class ROT13 { static int x,y,n,fx,l,m; public static void main(String[] args) { Scanner sc=new Scanner(System.in); System.out.println(Enter yout text); String t = sc.nextLine(); int j=0; int key=13; for (int i=0; i { char ch3 = t.charAt(j); if (ch3 >= a ch3 else if (ch3 >= n ch3 else if (ch3 >= A ch3 else if (ch3 >= A ch3 System.out.print(ch3); j++; } System.out.println(); System.out.println(Enter yout 2nd text); String t1 = sc.nextLine(); int j1=0; int key1=13; for (int i1=0; i1 { char ch3 = t1.charAt(j1); if (ch3 >= a ch3 else if (ch3 >= n ch3 else if (ch3 >= A ch3 else if (ch3 >= A ch3 System.out.print(ch3); j1++; } System.out.println(); System.out.println(Enter the 1st encrypted result=); String a=sc.nextLine(); System.out.println(); System.out.println(Enter the 2st encrypted result=); String a1=sc.nextLine(); String con = a+a1; System.out.print(con); System.out.println(); int j2=0; int key2=13; for (int i2=0; i2 { char ch3 = con.charAt(j2); if (ch3 >= a ch3 else if (ch3 >= n ch3 else if (ch3 >= A ch3 else if (ch3 >= A ch3 System.out.print(ch3); j2++; }}} OUTPUT Enter the 1st encrypted result=Uryyb Enter the 2st encrypted result=Jbeyq UryybJbeyq HelloWorld Explanation of Output Text a = Encrypt (13, Hello); a = Uryyb Text b = Encrypt (13, World); b = Jbeyq Text c = Concat (a,b); c = UryybJbeyq Text d = Decrypt(13, c); d = HelloWorld As we can see clearly that we used an addition (concat) property to encrypt the text but after this we got the same result as we got without using concat. This property demonstrates that ROT13 is partially homomorphic scheme with respect of addition. The problem start with this technique when machine came in to being and it was easy to break secret code and even drawback of this scheme was numbers because user only were to able to encrypt alphabetic. Then gradually, ROT47 new scheme introduced and this scheme was derived from ROT13 as-well. Inside this scheme there was a big border for its users so now they were able to play with numbers and special characters. ROT47 exercise a larger alphabet, resulting from a regularcharacter programmingwell-known asAmerican Standard Code for Information Interchange (ASCII). The ASCII is a 7-bit code to correspond to English alphabet structure and these codes are in practice to symbolize data which includes numbers used in central processing unit, interactions technology and additional associated mechanism. The first publication of this standard code was in 1967 then afterward restructured and produced as â€Å"ANSI X3.4-1968†, at that time as â€Å"ANSI X3.4-1977† and at last as â€Å"ANSI X3.4-1986†. It is given that, it is a seven-bit code and it preserves the largest part symbolizing 128 characters. It presently characterize 95 printable characters together with 26 upper-case letters (A to Z), 26 lower-case letters (a to z), 10 numbers (0 to 9) and 33 special characters as well as arithmetic signs, punctuation marks and space character. . (Maini A K, 2007) However ROT13 introduced with new values of its alphabets separately both capital and smaller. Unlike ROT13, ROT47 was also not able to protect your text at all. This scheme is also having homomorphic property like addition. If closely observe the both scheme then we will be able to see that there is only little difference in both schemes. Both working pattern is same, both dealing with alphabets but ROT47 got advantage because this scheme deal with numbers and individual characters. In this method ASCII cipher connect to trade letters or numbers during encryption/decryption. Knowledge of ASCII codes to one lead to revel the facts. So here this scheme becomes the same like ROT13, so failure of this scheme once again involvement of the secret key. Is Symmetric Key Encryption Secure? ROT13 encryption scheme is not secured at all because the code of this scheme you can decode very easy. This was the disadvantage of this scheme. The reason we encrypt our transcript is to make it protected from illegitimate access however this scheme only consist of 26 characters which is very simple to decipher even from side to side a common person who have an access to the written text. For example: Anyone wishes to encrypt â€Å"atotaa†, after that the cipher we will achieve â€Å"ngbgnn† which is very effortless to work out through repetition of â€Å"a g†. ROT47 was novel encryption scheme derived from ROT13and also another example of symmetric key encryption but bit difficult. In ROT47 moving the basic letter swiftly like ROT13 with given substitute of ASCII. In this scheme one can take care of numbers and many other special characters as a substitute of the basic 26 letters however awareness of ASCII codes can show the way to one to search out the facts. Consequently, at this point this scheme turn into insecure category like ROT13, so failure of this scheme was once again its own typical contribution of the ASCII codes. Public Key or Asymmetric Key Encryption An important contribution in the peak field that time named â€Å"public-key cryptography† fulfilled by Whitfield Diffie, Martin Hellman and Ralph Merkle in 1976 when they introduce an elegant cryptosystem for a public-key. The major difference as compare to prior scheme was one extra key named as public key. The public key assume to be used for encryption and then private key will use to decryption. Cryptography has been a derivative security entirety once a secure channel exists along which keys can be transmitted, the security can be extended to other channels of higher bandwidth or smaller delay by encrypting the messages sent on them. The effect has been to limit the use of cryptography to communications among people who have made prior preparation for cryptographic security. (W Diffie and M Hellman, 1976) ABOVE NOT COMPLETE YET RSA respected the idea of Diffie et al and in 1978 they introduced first public key algorithm in public at MIT byRon Rivest,Adi Shamir, andLeonard Adleman. They illustrate what is predetermined by a trapdoor cipher, but how do you construct one? One usually used of the secret message of this type is called RSA encryption, wherever RSA are the initials of three initiators which are Rivest, Shamir, and Adleman. It is based on the idea below; it is simply multiply numbers together, particularly with the help of computers reason, factorization of this numbers could be difficult. To get them, one needs to factor N, which seems to be an extremely complex problem. But exactly how is N used to encode a message, and how are p and q used to decode it? Below is presented a complete example, although there will be used minute prime numbers so it is easy to follow the arithmetic. Actually in RSA encryption scheme they used very big prime numbers. As per them it makes scheme more secure because in their algorithm they need to factorize the number to get the result. If someone using small number then its easy to factorize the number but it is not the same with big number. Therefore, they in their algorithm they used key size 768-bit for ordinary use and they suggest 1024-bit key size for commercial use but for highly important information key size should be double (2048-bit) as compare to business key size just for mind satisfaction regarding security threat. RSA advised to one and all concerning their scheme that how scheme work to get own encryption and decryption key if any want using their method. First step decide two separate prime numbers like p, q. Later than multiply integers pq and make n = pq public. Exposing n in public will help one to hide original integers like q q and now it will be very difficult for illegitimate person to find original integers p q because factorization will be very hard for big prime numbers. This achievement will help to hide the value of multiplicative inverse d and the way derived from co-prime e. Choosing big integer d but d must comparatively prime with φ((p-1).(q-1)) and must fulfill the condition of greater common devisor gcd (d, (p-1)(q-1)). Finally one can compute the integer e â€Å"1 Mathematically Implementation of RSA algorithm RSA algorithm steps below Two prime integers p=61 and q=53 Multiply both prime integers n = pq = 61.53=3233. The value of n afterward used as modulus for public and private key. Calculate φ(n) = (p-1).(q-1) = 3120. Where φ is Eulers totient function. For the value of e = 17 select any integer from 1 One can conclude d = e-1 mod φ(n). The value of d = 2753 will be using in private key exponent so supervision of this key is essential. Extended Euclidean algorithm helps to determine the d. Thepublic keywill be (n= 3233,e= 17) and for text m the encryption function is m17 mod φ(n). Theprivate keyis (n= 3233,d= 2753) and for the encrypted text c decryption function will be cd mod φ(n). For example: Encryptm= 65, we compute c= 6517(mod 3233) = 2790. For decryptc= 2790, we calculate m= 27902753(mod 3233) = 65. Using the above boring however easy for a computer to calculate, One can decode others message and obtain the original message m = 65. Java Code for RSA Algorithm: public class RSACode { static long x,y,n,fx,l,m; static int p,q,e,tn; public static void main(String[] args) { Scanner sc=new Scanner(System.in); System.out.println(Please enter ist prime no P); p =sc.nextInt(); System.out.println(Please enter 2nd prime no q); q =sc.nextInt(); n=p*q; System.out.println(p*q = n +n); //Totient of n tn=(p-1)*(q-1); System.out.println(Totation of tn(pq) = +tn); int k=tn; for (int i=1; i { int fi= (int)(Math.pow(2, i)+1); l=fi; while (tn % fi !=0) { int r = (tn % fi); tn = fi; fi = r; } if (fi==1) System.out.println(GCD Of+[+k+,+l+] is+fi+Recommended for you); } System.out.println(So please use +l+ as e); System.out.println(Enter number to exponent e); e=sc.nextInt(); for (int d=1;d if ((e*d)%k==1) System.out.println(The value of e^-1 mod n= d ==+d); System.out.println(Enter the above valu of d); int d1=sc.nextInt(); System.out.println(Enter number to encrypt); m=sc.nextInt(); //encryption function is c = (m ^ e)/n; double encryption = (Math.pow(m, e)% n); System.out.println(encryption Key =+ encryption); System.out.println(The value of d= e^-1 mod n ==+d1); double decrypt = (Math.pow(encryption, d1) % n); System.out.println(encryption +to decryption is = + decrypt); OUT PUT Please enter ist prime no P 5 Please enter 2nd prime no q 7 p*q = n 35 Totation of tn(pq) = 24 GCD Of[24,5] is1Recommended for you GCD Of[24,9] is1Recommended for you So please use 9 as e Enter number to exponent e 5 The value of e-1 mod n= d ==5 Enter the above value of d 5 Enter number to encrypt 9 encryption Key =4.0 The value of d= e-1 mod n ==5 4.0to decryption is =9.0 The above java code works fine on small prime integers with small exponential power and small value of d (multiplicative inverse). OUT PUT Please enter ist prime no P 61 Please enter 2nd prime no q 53 p*q = n 3233 Totation of tn(pq) = 3120 GCD Of[3120,17] is1Recommended for you So please use 17 as e Enter number to exponent e 17 The value of e-1 mod n= d ==2753 Enter the above value of d 2753 Enter number to encrypt 65 encryption Key =887.0 The value of d= e-1 mod n ==2753 887.0to decryption is =NaN The same java code work perfect on big numbers but there you need different data types to adjust the output value the error NaN means data type mismatch. Practically Implementation An RSA operation whether encrypting, decrypting, signing, or verifying is fundamentally a modular exponentiation. This computation is executed with a sequence of modular multiplications. In practical uses, it is general to select a small public exponent for the public key. In reality, entire group of users preserve to use the matching public exponent, every one through a different modulus. However there are few boundaries on the prime factors of the modulus when the public exponent is set. For the reason of this it creates encryption more rapidly than decryption and verification quicker than signing. Through the typical modular power algorithms used to put into practice the RSA algorithm, public-key operations takeO(k2) steps, private-key operations take O(k3) steps, and key generation takesO(k4) steps, wherekis the number of bits in the modulus. (RSA 2010) Is RSA Work Secure? This scheme is not fully secure on the basses of following attacks Elementary attack Low private exponent attack Low private exponent attack Implementation attack Boneh et al Homomorphic Encryption (Boneh D, 1999) examined the RSA cryptosystem, was original exposed in the 1977-1978 topic of â€Å"Scientific American†. The cryptosystem is mainly generally in practice for offering confidentiality and certification validity of digital data. In those days RSA was positioned in many big business organizations. It is used by web servers and browsers to safe web transfer, it is used to make sure confidentiality and legitimacy of correspondence, it is used to safe remote login phase, and it is at the heart of electronic credit-card payment method. However, RSA is commonly take part in meanings anywhere safety of digital data is on risk. In view of the fact of first publication, the RSA scheme evaluates meant for weakness through a lot of examiners. However since 1977 to 1999, examiner have direct to a many interesting attacks but not any of them is critical. They typically demonstrate the risk of offensive use of RSA. Definitely, protected execution of RSA is a nontrivial job. Twenty years of research into inverting the RSA service created various perceptive attacks, other than no shocking attack has ever been discovered. The attacks exposed so far mostly demonstrate the drawbacks which one can avoid once applying RSA. Currently comes into view that correct applications can offer assurance to afford protection in the electronic globe. Openattacks on RSA scheme: Chosen chipper attack is very famous in cryptography in it attacker gathered information in pieces and then process it. This attack claimed against RSA in 1998 by Y. Desmedt and A. M. Odlyzko. According to RSA choose two prime numbers to calculate n then use φ(n) for modulus in encryption and decryption but if any enemy used brute force attack on their public key (N, e) to find the factorization and as well as their φ(n). On the other hand if we assume that only big prime number only allowed in RSA then it will affect the speed of the scheme because performance depend on n-bit key. While encrypting with not big encryption supporter e= 3 and small values of them like m Another attack was if sender send a plain clear message to e or more beneficiary after encrypted and the recipients distribute the similar exponente, except differentintegers p,q, andn, in that case it is simple to decode the plaintext using theChinese remainder theorem.Hà ¥stadJ become aware of that, this attack is achievable still if the plaintexts are not identical, however the attacker recognize a linear relation among them.Afterward Don Coppersmith enhanced this attack which was low exponent. RSA has the property that the multiplication of two encrypted text is the same to the encryption of the product of the individual plaintexts. That isâ€Å"† since of this multiplicative property achosen ciphertext attackis possible. For example an attacker, who needs to identify the decryption of a ciphertextc=me(modn)possibly will request the owner of the private key to decrypt an innocent appearing ciphertextc =re c (modn)for random rselected by the attacker. For the reason that of the multipli

Freudian Psychoanalysis and the Awakening Essay -- Psychology, Literar

Freudian Psychoanalysis and the Awakening Sigmund Freud, the preeminent, 19th century, European neurologist and psychologist, designed a theory he labelled â€Å"psychoanalysis,† a theory which would transcend all borders and integrate itself deeply into many facets of society. In fact, an American named Kate Chopin, wrote a book entitled The Awakening, which was published at the turn of the 19th century, in which this theory played an integral role in expressing the complexity, relevance, and growth of the main character. The express importance of the main character displaying a Freudian psych is pertinent even in the modern time because it allows us to view the application of his theories around the time of their conception, trace their evolution and see the changes throughout the years. By possessing these comparisons, one could then gain insight as to how society and the individual has developed and progressed. Freud's theory of psychoanalysis defined a human's personality and then outlined causes and affects that these traits had on the person's thoughts, actions, and relationships. As he developed his knowledge of the human psych, he named three different parts belonging to it: the Id, the Ego, and the Superego. The Id is what drives the instinctual and need-based responses of a human, the Ego is the controlled and realistic force, and the Superego is what dictates and adheres to morality and social correctness. According to Freud, these three section of a human's psyche must maintain balance or the subject will fall to internal chaos and turmoil. In the Awakening, the main character, Edna, experiences this psychological imbalance which results in her living a very unfortunate life. This imbalance sets off a chain of... ...societies, and the Awakening offers an extremely interesting point of view; Learning to recognise and explore these three Freudian principles as they relate to oneself is an integral part in understanding society and movements and patterns of humanity as a whole. Bibliography 1. "Psychoanalytic Theories of Development."  Psychology - Complete Guide to Psychology for Students, Educators & Enthusiasts. Web. 04 Feb. 2012. . 2. Association, American Psychoanalytic. "About Psychoanalysis."  American Psychoanalytic Association. Web. 04 Feb. 2012. . 3. "Psychoanalytic Theory in Personality Synopsis at ALLPSYCH Online."  Psychology Classroom at AllPsych Online. Web. 04 Feb. 2012.

Ap Psychology Review Packet Essay

Absolute Threshold:  the minimum stimulation needed to detect a particular stimulus 50% of the time. 2. Accommodation:  the process by which the eye’s lens changes shape to focus near or far images on the retina. 3. Acetylcholine:  neurotransmitter that enables muscle action, learning and memory. 4. Achievement Motivation:  desire for accomplishment. 5. Achievement Test:  an exam designed to test what a person has earned. 6. Acoustic Encoding:  encoding of sound, especially words. 7. Acquisition:  the initial stage when one links a neutral stimulus and an unconditioned stimulus. 8. Action Potential:  a neural impulse; a brief electrical charge that travels down an axon. 9. Activation Synthesis:  theory that REM sleep triggers neural firing that evokes random images, which our sleep brain weaves into stories. 10. Adaptation Level Phenomenon:  tendency to form judgements relative to a neutral level defined by our prior experience. 11. Adrenal Glands:  a pair of endocrine glands that sit just above the kidneys and secrete hormones that help arouse the body in times of stress. 12. Algorithm:  a methodical, logical rule that guarantees solving a particular problem. 3. Alpha Waves:  the relatively slow brain waves of an awake, relaxed state. 14. Amnesia:  loss of memory. 15. Amphetamines:  drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes. 16. Amygdala:  two lima bean-sized neural clusters in the limbic system; linked to emotion. 17. Aphasia:  impairment of language caused by left hemisp here damage to Broca’s area, impairing speaking, or Wernicke’s area, impairing understanding. 18. Applied Research:  scientific study that aims to solve practical problems 19. Aptitude Test:  designed to predict a person’s future performance. 20. Association Areas:  areas of the cerebral cortex that are not involved in primary or sensory functions but in higher mental functions. 21. Associative Learning:  learning that certain events occur together. 22. Automatic Processing:  unconscious encoding of incidental information. 23. Autonomic Nervous System:  the part of the peripheral nervous system that controls the glands and the muscles of the internal organs. 24. Availability Heuristic:  estimating the likelihood of events based on their availability in memory. 5. Axon:  the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles and glands. 26. B. F. Skinner:  a leading behaviorist; rejected introspection and studied how consequences shape behavior. 27. Babbling Stage:  begins at 4 months; stage of speech development in which infant spontaneously utters various sounds. 28. Barbituates:  drugs that depress the activity of the central nervous system,  reducing anxiety  but impairing memory and judgement. 29. Basal Metabolic Rate:  body’s resting rate of energy expenditure. 30. Basic Research:  pure science that aims to increase the scientific knowledge base 31. Behavior Genetics:  the study of the relative power and limits of genetic and environmental influences on behavior. 32. Behavioral Medicine:  integrates behavioral and medical knowledge to apply to health and disease. 33. Behaviorism:  the view that psychology should be an objective science that studies behavior without reference to mental process. 34. Belief Perseverance:  clinging to one’s initial conceptions after the basis has been discredited. 35. Binocular Cues:  depth cues such as retinal disparity that depend on using two eyes. 36. Bio-Feedback:  electronically recording, amplifying and feeding back information regarding a subtle physiological state. 37. Biological Psychology:  a branch of psychology concerned with the links between biology and behavior. 38. Biopsychosocial Approach:  an integrated approach that incorporates biological, psychological, and social-cultural levels of analysis. 39. Blind Spot:  the point at which the optic nerve leaves the eye, creating a â€Å"blind spot† because no receptor cells are located there. 40. Bottom-Up Processing:  analysis that starts with the sensory receptors and works up to the brain’s integration of sensory information. 1. Broca’s Area:  controls language expression; area of the frontal lobe of the left hemisphere. 42. Cannon-Baird Theory:  emotion arousing stimulus triggers physiological response and subjective experience of emotion. 43. Case Study:  an observational technique in which one person id studied in depth in the hope of revealing universal principles. 44. Central Nervous System:  the brain and spinal cord. 45. Cerebellum:  the â€Å"little brain† at the rear of the brainstem; processes sensory input and coordinates movement output and balance. 46. Cerebral Cortex:  the intricate fabric of interconnected neural cells covering the cerebral hemispheres; the body’s ultimate control and information-processing center. 47. Change Blindness:  failing to notice changes in the environment 48. Charles Darwin:  argued that natural selection shapes behaviors as well as bodies. 49. Chunking:  organizing items into familiar, manageable units; often occurs automatically. 50. Circadian Rhythm:  the biological clock; regular bodily rhythms that occur on a 24-hour cycle 51. Classical Conditioning:  one learns to link two or more stimuli and anticipate future events. 2. Clinical Psychology:  a branch of psychology that studies, assesses, and treats psychological disorders. 53. Cochlea:  a coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger neural impulses. 54. Cochlear Implant:  device for converting sounds into electrical signals and stimulating the auditory nerve through electrodes threade d through the cochlea. 55. Cognition:  Mental activities associated with thinking, knowing, remembering and communicating. 56. Cognitive Map:  mental representation of the layout of ones environment. 57. Cognitive Neuroscience:  the interdisciplinary study of brain activity linked with cognition. 58. Cognitive Perspective:  how we encode, process, store, and retrieve information. 59. Color Constancy:  perceiving familiar objects as having consistent color either if changing illumination alters the wavelengths reflected by the object. 60. Complementary Alternative Medicine:  unproven healthcare treatments intended to supplement conventional medicine. 61. Conditioned Reinforcer:  a stimulus that gains reinforcing power through its association with the primary reinforcer. 62. Conditioned Response:  the learned response to a previously neutral stimulus. 63. Conditioned Stimulus:  an originally irrelevant stimulus that, after association with US, triggers a response. 64. Conduction Hearing Loss:  hearing loss caused by damage to the mechanical system that conducts sound waves to the cochlea. 65. Cones:  retinal receptor cells that are concentrated near the center of the retina and function in daylight of well-lit conditions. 66. Confirmation Bias:  a tendency to search for information that backs one’s own beliefs. 67. Consciousness:  our awareness of ourselves and our environment. 68. Content Validity:  extent to which a test samples the behavior that is of interest, 69. Continuous Reinforcement:  reinforcing a desired response every time it occurs. 70. Control Group:  the group that is not exposed to the treatment in an experiment. 71. Coping:  alleviating stress using emotional, cognitive, or behavioral methods. 72. Corpus Callosum:  axon fibers connecting the two cerebral hemispheres. 73. Correlation:  a measure of the extent to which two factors vary together, and thus of how well either factor predicts the other. 74. Correlation Coefficient:  a statistical index of the relationship between two things (from -1 to +1) 75. Counseling Psychology:  a branch of psychology that assists people with problems in living and in achieving greater well-being. 76. Critical Thinking:  thinking that does not blindly accept arguments and conclusions. 77. Culture:  the enduring behaviors, ideas, attitudes, and traditions shared by a group of people and transmitted from one culture to the next. 78. Delta Waves:  the large, slow brain waves associated with deep sleep. 79. Dendrite:  the bushy, branchy extensions of a neuron that receive message and conduct impulses towards the cell body. 0. Dependent Variable:  the outcome factor; the variable that may change in response to the manipulation of the independent variable. 81. Depressants:  drugs that reduce neural activity and slow body functions. 82. Difference Threshold:  the minimum difference between stimuli required for detection 50% of the time. 83. Discrimination:  learned ability to distinguish between CS and stimuli that do not signal a US. 84. D issociation:  a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others. 85. Dopamine:  neurotransmitter that influences movement, learning, attention and emotion. 86. Double-Blind Procedure:  an experimental procedure in which both the research participants and the research staff are ignorant as to whether the group has received a treatment or a placebo. 87. Drive-Reduction Theory:  physiological need; creates an aroused tension state, a drive, that motivates an organism to satisfy the need. 88. Dual Processing:  the principle that information is simultaneously processed on separate conscious and unconscious tracks 89. Echoic Memory:  momentary sensory memory of an auditory stimuli. 0. Ecstasy (MDMA):  a synthetic stimulant and a mild hallucinogen. Produces Euphoria and social intimacy, but with short-term health risks and longer-term harm to serotonin-producing neurans and to mood and cognition. 91. Edward Titchener:  father of structuralism. 92. Effortful Processing:  encoding that requires attention and conscious effort. 93. Electroencepha logram (EEG):  an amplified recording of the waves of electrical activity that sweep across the brain’s surface. 94. Emotion:  response of the whole organism involving psychological arousal, expressive behavior and conscious experience. 95. Emotion-Focused Coping:  Attempting to alleviate stress by avoiding or ignoring a stressor and attending to emotional needs relating to one’s stress. 96. Encoding:  the processing of information into the memory system by extracting meaning. 97. Endocrine System:  the body’s â€Å"slow† chemical communication system; a set of glands that secrete hormones into the bloodstream. 98. Endorphins:  Ã¢â‚¬Å"morphine within† – natural, opiatelike neurotransmitters linked to pain control and to pleasure. 99. Environment:  every non-genetic influence. 100. ESP:  claim that perception can occur apart from sensory input. 101. Estrogen:  the primary female sex hormone. 102. Evolutionary Psychology:  the study of the evolution of behavior and the mind, using principles of natural selection. 103. Experiment:  a research method in which an investigator manipulates one of more factors to observe the effect on some behavior or mental process. 104. Experimental Group:  the group that is exposed to the treatment in an experiment. 105. Explicit Memory:  memory of facts and experiences that one can consciously know and declare; stored in hippocampus. 106. Extinction:  diminishing of CR; occurs in classical conditions when US does not follow CS. 07. Extrinsic Motivation:  desire to perform to receive rewards or avoid punishment. 108. Factor Analysis:  a statistical procedure that identifies clusters of related items, called factors, on a test. 109. Feature Detectors:  nerve cells in the brain that respond to specific features of the stimulus, such as shape, angle or movement. 110. Feel-Good Do-Good Phenomena:  tendency to be helpful when already in a good mood. 111. Figure-Ground:  organization of visual field into objects that stand out from their surroundings. 112. Fixation:  inability to see a problem from a new perspective. 113. Fixed-Interval Schedule:  reinforcement schedule that reinforces a response only after a specified amount of time has elapsed. 114. Fixed-Ratio Schedule:  reinforcement schedule that reinforces only after specified number of responses. 115. Flashbulb Memory:  a clear memory of an emotionally significant moment or event. 116. Flow:  a completely involved, focused state of consciousness resulting from optimal engagements of one’s skills. 117. fMRI:  a technique for revealing bloodflow and, therefore, brain activity – shows brain function. 118. Fovea:  the central focal point in the retina, around which the eye’s cones cluster. 19. Framing:  the way an issue is posed. 120. Fraternal Twins:  twins who develop from separate fertilized eggs. They are genetically no closer than a brother or sister. 121. Frequency:  the number of complete wavelengths that pass a point in a given time. 122. Frequency Theory:  in hearing, the theory that the rate of neu ral impulses traveling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch. 123. Freud’s Wish-fulfillment:  theory that dreams provide a psychic safety valve for expressing otherwise unacceptable feelings. 124. Frontal Lobes:  portion of the cerebral cortex lying just behind the forehead; involved in speaking, muscles movement, making plans and judgement. 125. Functional Fixedness:  the tendency to think of things only in their usual function. 126. Functionalism:  a school of psychology that focused on how our mental and behavioral processes function – how they enable us to adapt, survive and flourish. 127. GABA (gamma-aminobutyric acid):  a major inhibitory neurotransmitter. 128. Gate-Control Theory:  theory that spinal cord contains a neurological gate that blocks pain signals or allows them to pass to the brain. 29. Gender Identity:  our sense of being male or female. 130. Gender Role:  a set of expectations for either males or females. 131. Gender Typing:  the acquisition of a traditional male or female role. 132. General Adaptation Syndrome:  Selye’s concept of body’s adaptive response to stress; alarm, resistance, exhaustion. 133. General Intelli gence:  general intelligence factor, according to Spearman, underlies specific mental abilities and is measured by every task on an intelligence test. 134. Generalization:  tendency after response has been conditioned for similar stimuli to elicit similar responses. 135. Genome:  the complete instructions for making an organism. 136. Gestault:  organized whole; tendency to integrate pieces of information into meaningful wholes. 137. Glial Cells:  cells in the nervous system that support, nourish, and protect neurons. 138. Glutamate:  a major excitatory neurotransmitter – involved in memory. 139. Grouping:  perceptual tendency to organize stimuli into coherent groups based on proximity, similarity, continuity and connectedness. 140. Hallucinations:  false sensory experiences. 141. Hallucinogens:  drugs taht distort perception and evoke sensory images in the absence of sensory input. 142. Health Psychology:  sub-field of psychology; provides psychology’s contribution to behavioral medicine. 143. Heritability:  the proportion of variation among individuals that we can attribute to genes. 144. Heuristic:  a simple thinking strategy that often allows us to make strategies and solve problems quickly. 145. Hierarchy of Needs:  Mazlow’s pyramid of human needs; begins with physiological needs which must be met before higher goals can be attained. 146. Higher-Order Conditioning:  procedure where conditioned stimulus in one experience is paired with a new, neutral stimulus, creating a new Conditioned Stimulus. 47. Hindsight Bias:  the tendency to believe that, after learning the outcome, one would have foreseen it. 148. Hippocampus:  a neural center that is located in the limbic system and helps process explicit memories for storage. 149. Homeostasis:  tendency to maintain a state of balance. 150. Hormones:  chemical messengers that are manufact ured by the endocrine glands. 151. Hue:  the dimension of color that is determined by the wavelength of the light. 152. Humanistic Psychology:  historically significant perspective that emphasized the growth potential of healthy people and the individual’s potential for personal growth. 53. Hypothalamus:  a neural structure lying below the thalamus; it directs several maintenance activities, helps govern the endocrine system, and is linked to emotion and reward. 154. Hypothesis:  a testable prediction. 155. Iconic Memory:  a momentary sensory memory of a visual stimuli; a photographic memory lasting no more than a few tenths of a second. 156. Identical Twins:  twins who develop from a single fertilized egg that splits into two, creating two genetically identical organisms. 157. Illusory correlation:  the perception of a relationship where none exists. 158. Implicit Memory:  retention independent of conscious recollection; stored in cerebellum. 159. Inattentional Blindness:  failing to see visible objects when our attention is directed elsewhere 160. Incentive:  a positive or negative environmental stimulus. 161. Independent Variable:  the experimental factor which is directly manipulated. 162. Industrial Organizational Psychology:  using psychological concepts to optimize behavior in work places. 163. Information Processing:  theory that dreams help us sort out the day’s events and consolidate our memories. 164. Infradian Rhythm:  long-term cycle; greater than a day 65. Inner Ear:  the inner most part of the ear, containing the cochlea, semicircular canals, and vestibular sacs. 166. Insight:  sudden and novel realization of the solution to a problem. 167. Insomnia:  recurring problems in falling or staying asleep. 168. Instinct:  a complex behavior rigidly patterned throughout the species and is unlearned. 169. Intensity:  the amount of energy in a light or sound wave, which we can perceive as brightness or loudness, as determined by the wave’s amplitude. 170. Interaction:  the interplay that occurs when the effect of one factor depends on another. 171. Interneurons:  neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and the motor outputs. 172. Intrinsic Motivation:  desire to perform for its own sake. 173. Intuition:  effortless, immediate feeling or thought. 174. Iris:  a ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening. 175. James-Lange Theory:  emotion is awareness of physiological responses to emotion-arousing stimuli. 176. Kinesthesis:  system for sensing the position and movement of individual body movements. 77. Latent Content:  according to Freud, the underlying meaning of a dream. 178. Latent Learning:  learning that occurs but is not apparent until there is an incentive to demonstrate it. 179. Law of Effect:  Thorndike’s principle that behavior followed by favorable consequences become more likely and behaviors followed by negative consequences become less likely. 180. Lens:  the transparent structure behind the pupil that changes shape to help focus images on the retina. 181. Lesion:  destruction of the brain tissue. 182. Levels of Analysis:  the differing complementary views for analyzing any iven phenomenon. 183. Limbic System:  neural system located below the cerebral hemispheres; associated with emotions and drives. 184. Lingusitic Determinism:  Whorf’s hypothesis that language determines the way we think. 185. Long-Term Memory:  relatively permanent and limitless storehouse of the memory system. 186. Long-Term Potentiation (LTP):  increase in synapse-s firing potential after rapid stimulation; the neural basis for learning and memory. 187. LSD:  a powerful hallucinogenic drug; alsdo known as acid. 188. Lymphocytes:  the two types of white blood cells that are part of the immune system. 189. Manifest Content:  according to Freud, the remembered story line of a dream. 190. Mean:  the arithmetic average of a distribution. 191. Median:  the middle score in a distribution. 192. Medulla:  the base of the brainstem; controls heartbeat and breathing. 193. Mental Age:  measure of test performance devised by Binet; chronological age that typically correlates with a given age. 194. Mental Set:  tendency to approach a problem in a particular way, often one that has been successful. 195. Methamphetamine:  a powerfully addictive drug that stimulates the central nervous system and appears to drop base dopamine levels over time. 96. Middle Ear:  the chamber between the eardrum and the cochlea containing three tiny bones (hammer, anvil and stirrup) that concentrate the vibrations of the eardrum on the cochlea’s oval window. 197. Mirror Neurons:  frontal lobe neurons that fire when performing certain actions or when performing another doing so; this may enable im itation or empathy. 198. Misinformation Effect:  incorporating misleading information into ones memory. 199. Mnemonics:  memory aids. 200. Mode:  the most frequently occurring score(s) in a distribution. 201. Modeling:  observing and imitating a specific behavior. 202. Monocular Cues:  depth cues available to either eye alone. Includes relative height, relative size, interposition, linear perspective, light and shadow, and relative motion. 203. Mood Congruent Memory:  tendency to recall experiences that are consistent with one’s current mood. 204. Morpheme:  the smallest unit that carries meaning. 205. Motivation:  a need or desire that energizes and directs behavior. 206. Motor Cortex:  an area at the rear if the frontal lobes that controls voluntary movements. 207. Motor Neurons:  neurons that carry outgoing information from the brain and spinal cord to the muscles and glands. 208. MRI:  a technique that uses magnetic fields and radio waves to produce computer-generated images of soft tissue. 209. Mutation:  a random error in gene replication that leads to a change. 210. Myelin Sheath:  a layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed. 211. Narcolepsy:  a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times. 212. Natural Selection:  inherited trait variations contributing to survival and reproduction will be passed on to succeeding generations. 13. Naturalistic Observation:  observing and recording behavior in naturally occurring situations without trying to manipulate or control the situation. 214. Nature-Nurture issue:  controversy over contributions of genes vs. experience 215. Near-death Experience:  an altered state of consciousness reported after a close brush with death; often similar to dru g-induced hallucinations. 216. Negative Reinforcement:  increasing behaviors by stopping a negative stimuli. 217. Neo-Freudian Theory:  theory that dreams can be used as a coping mechanism to deal with past events. 218. Nerves:  bundled axons that form neural â€Å"cables† connecting the central nervous system with muscles, glands, and sense organs. 219. Nervous system:  the body’s speedy, electrochemical communication network, consisting of all the nerve cells of the peripheral and central nervous systems. 220. Neurogenesis:  the formation of new neurons. 221. Neuron:  a nerve cell; the basic building block of he nervous system. 222. Neurotransmitters:  chemical messengers that cross the synaptic gaps between neurons. 223. Night Terrors:  a sleep disorder characterized by high arousal and an appearance of being terrified. 24. Norepinephrine:  neurotransmitter that helps control alertness and arousal. 225. Normal Curve:  a symmetrical, bell-shaped curve that describes the distribution of many types of data. 226. Observational Learning:  learning by observing others. 227. Occipital Lobes:  portion of the cerebral cortex lying at the back of the head; includes areas t hat receive information from the visual fields 228. One-Word Stage:  from age 1 to 2; when a child speaks in single words. 229. Operant Behavior:  Behavior that operates on the environment, producing consequences. 230. Operant Chamber:  a chamber / Skinner Box containing a bar that an animal can manipulate to obtain water or food. 231. Operant Conditioning:  type of learning in which behavior is strengthened followed by a reinforcer or diminished followed by a punisher. 232. Operational Definition:  a statement of the procedures used to define research variables. 233. Opiates:  opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety. 234. Opponent-Process Theory:  the theory that opposing retinal processes (red-green, yellow-blue, white-black) enable color vision. 35. Optic Nerve:  the nerve that carries neural impulses from the eye to the brain. 236. Organizational Psychology:  part of IO Psychology; examines psychological influences o worker satisfaction and productivity. 237. Overconfidence:  tendency to be more confident than correct. 238. Parallel Processing:  the processing of many aspects of a problem simu ltaneously. 239. Parapsychology:  study of paranormal phenomena. 240. Parasympathetic Nervous System:  the division of the autonomic nervous system that calms the body, conserving its energy. 241. Parathyroids:  help regulate the level of calcium in the blood 242. Parietal Lobes:  portion of the cerebral cortex lying at the top/rear of the head; receives sensory input for touch and body position. 243. Partial/Intermittent Reinforcement:  Reinforcing a response only part of the time. 244. Perception:  the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events. 245. Perceptual Adaptation:  in vision, the ability to adjust to an artificially displaced or inverted visual field. 246. Perceptual Set:  mental predisposition to perceive one thing and not another. 247. Peripheral Nervous System:  the sensory and motor neurons that connect the central nervous system to the rest of the body. 248. Personnel Psychology:  focuses on recruitment, selection and placement of employees. 249. PET Scan:  a visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task. 250. Phoneme:  the smallest distinctive sound unit. 251. Physical Dependence:  a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued 252. Pitch:  a tone’s experienced highness or lowness; depends on frequency. 53. Pituitary Gland:  the endocrine gland system’s most influential gland. Under the influence of the hypothalamus, the pituitary regulates growth and controls other endocrine glands. 254. Place Theory:  in hearing, the theory that links the pitch we hear with the place where the cochlea’s membrane is stimulated. 255. Placebo Effect:  exper imental results caused by expectation alone. 256. Plasticity:  the brain’s ability to change, especially during childhood, by reorganizing after damage of by building new pathways based on experience 257. Polygraph:  lie detector machine; measures responses to emotion. 58. Pons:  part of the brainstem that helps coordinate movements. 259. Population:  all the cases in a group being studied, from which samples can be drawn. 260. Positive Reinforcement:  increasing behaviors by presenting positive stimuli. 261. Posthypnotic Suggestion:  a suggestion, made during a hypnotic session, to be carried out after the subject is no longer hypnotized. 262. Predictive Validity:  the success with which a test predicts the behavior it is designed to predict. 263. Primary Reinforcer:  an innately reinforcing stimulus, such as one that satisfies a biological need. 264. Priming:  the activation, often unconsciously, of certain associations, thus predisposing one’s perception, memory, or response. 265. Pro-Social Behavior:  positive, constructive behavior. 266. Proactive Interference:  the disruptive effect of prior learning on the recall of new information. 267. Problem-Focused Coping:  attempting to alleviate stress by changing the stressor or how we interact with that stressor. 268. Prototype:  a mental image or best example of a category. 269. Pshchological Dependence:  a psychological need to use a drug, such as to relieve negative emotions. 270. Psychiatry:  a branch of medicine dealing with psychological disorders. 271. Psychoactive Drug:  a chemical substance that alters perceptions and moods. 272. Psychodynamic Perspective:  how behavior springs from unconscious drives and conflicts 273. Psychology:  the study of behavior and mental processes. 274. Psychoneuroeimmunology:  study of how psychological, neural, and endocrine processes affect the immune system. 275. Psychophysics:  the study of relationships between the physical characteristics of stimuli, such as their intensity, and our psychological experience of them. 276. Psychophysiological Illness:  mind-body illness; any stress-related physical illness, including hypertension. 277. Pupil:  the adjustable opening in the center of the eye through which light enters. 278. Random Assignment:  assigning participants to experimental and control groups by chance, thus minimizing pre-existing differences between the two groups. 279. Random Sample:  a sample that fairly represents a given population. 280. Range:  The difference between the highest and lowest scores in a distribution. 281. Recall:  measure of memory in which the person must retrieve information learned earlier. 82. Recognition:  measure of memory in which the person only identifies items previously learned. 283. Reflex:  a simple, autonomic response to a sensory stimulus. 284. Rehearsal:  conscious repetition of information, either for maintenance or encoding. 285. Reinforcer:  an event that strengthens behavior. 286. Relative Deprivation:  perception that one is worse off relative to those you compare yourself to. 287. Relearning:  a measure of memory that assesses the amount of time saved when learning material for a second time. 288. Reliability:  extent to which a test yields consistent results. 89. REM Rebound:  the tendency for REM sleep to increase following REM sleep deprivation. 290. REM sleep:  rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. 291. Replication:  repeating the essence of a research study to see whether the basic findings extend to other participants and circumstances. 292. Representativeness Heuristic:  judging the likelihood of things in terms of how well they seem to represent particular prototypes. 293. Respondent Behavior:  occurs as automatic response to some stimulus. 294. Reticular Formation:  a nerve network in the brainstem that plays an important role in controlling arousal. 295. Retina:  the light-sensitive inner surface of the eye. 296. Retinal Disparity:  a binocular cue for perceiving depth by comparing the images of the retinas from the two eyes. 297. Retrieval:  process of getting information out of storage. 298. Retroactive Interference:  the disruptive effect of new learning on the recall of old information. 299. Reuptake:  a neurotransmitter’s reabsorption by the sending neuron. 300. Rods:  retinal receptors that detect black, white and gray. 301. Savant Syndrome:  condition in which a person is limited in mental ability but has exceptional specific skill. 302. Scatterplots:  a graphed cluster of dots, the slope of which helps predict the direction of the relationship between the two variables. 303. Selective Attention:  the focusing of conscious awareness on a particular stimuli 304. Semantic Encoding:  encoding of meaning. 305. Semantics:  set of rules by which we derive meaning from morphemes, words and sentences. 306. Sensation:  the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. 07. Sensorineural Hearing Loss:  hearing loss caused by damage to the cochlea’s receptor cells or to the auditory nerves. Also called nerve deafness. 308. Sensory Adaptation:  diminished sensitivity as a consequence of constant stimulation. 309. Sensory Cortex:  area at the front of the parietal lobes that registers and processes body touch and moveme nt sensations. 310. Sensory Interaction:  principle that one sense may influence another; smell of food influences its taste. 311. Sensory Memory:  immediate, very brief recording of sensory information in the memory. 12. Sensory Neurons:  neurons that carry incoming information from the sensory receptors to the brain and spinal cord. 313. Serial Position Effect:  the tendency to recall best the last and first items in a list. 314. Serotonin:  neurotransmitter that affects mood, hunger, sleep and arousal. 315. Set Point:  the point where someone’s weight thermostat. 316. Shaping:  an operant conditioning procedure in which reinforcers guide behavior closer and closer to the desired behavior. 317. Short-Term Memory:  activated memory that holds a few items briefly. 318. Sigmund Freud:  Austrian neurologists who founded psychoanalysis. 319. Signal Detection Theory:  a theory predicting how and when we detect the presence of a faint stimulus (signal) amid background noise. Assumes there is no single absolute threshold and that detection depends partly on a person’s experience, expectations, motivation and level of fatigue. 320. Sleep Apnea:  a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings. 321. Social Leadership:  group oriented leadership that builds teamwork and offers support. 322. Social Learning Theory:  the theory that we learn social behavior by observing and imitating and by being rewarded and punished. 323. Social-cultural Perspective:  how behavior and thinking vary across situations and cultures 324. Somatic Nervous System:  the division of the peripheral nervous system that controls the body’s skeletal muscles. 325. Source Amnesia:  attributing the wrong source to an event we have experienced; at the heart of many false memories. 326. Spacing Effect:  tendency for distributed study or practice to yield better retention that massed study or practice. 327. Split Brain:  a condition resulting from surgery that isolates the brain’s two hemispheres by cutting the fibers connecting them. 328. Spontaneous Recovery:  Reappearance after a pause of an extinguished CR. 329. Standard Deviation:  a computed measure of how much the scores vary around the mean score. 330. Stanford-Binet:  widely used American revision of Binet’s original intelligence test. 331. Statistical Significance:  a statistical statement of how likely it is that an obtained result occurred by chance. 332. Stereotype Threat:  self-confirming concern that one will be evaluated based on negative stereotypes. 333. Stimulants:  drugs that excite neural activity and speed up body functions. 334. Storage:  retention of encoded information. 335. Stress:  how we perceive and respond to stressors that we appraise as threatening or challenging. 336. Structuralism:  an early school of psychology that used introspection to explore the structural elements of the human mind. 337. Structured Interviews:  asking the same questions of all applicants and rating on the standard scale. 338. Subjective Well-Being:  self-perceived happiness or satisfaction with life. 339. Subliminal:  below one’s absolute threshold for conscious awareness. 340. Survey:  a technique for ascertaining the self-reported attitudes of behaviors of a group. 341. Sympathetic Nervous System:  the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations. 342. Synapse:  the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron. 343. Syntax:  rules for combining words into sensible sentences. 344. Task Leadership:  goal oriented leadership that sets standards, organizes leadership and focuses on goals. 345. Telegraphic Speech:  early speech stage where child speaks like a telegram; uses nouns and verbs. 46. Temporal Lobes:  portion of the cerebral cortex lying above the ears; receives auditory information 347. Testosterone:  the most important of male sex hormones. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs in the fetus and the development of the male sex char acteristics during puberty. 348. Thalamus:  the brain’s sensory switchboard, located on top of the brainstem. 349. THC:  the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations. 350. Theory:  an explanation that organizes behavior and predicts future outcomes. 351. Threshold:  the level of stimulation necessary to trigger a neural impulse. 352. Thyroid Gland:  affects metabolism, among other things 353. Tolerance:  the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses of the drug before experiencing the drugs effects. 354. Top-Down Processing:  information processing guided by higher level mental processes, as when we construct perceptions drawing on our experience and expectations. 55. Transduction:  conversion of one form of energy into another. 356. Two_Word Stage:  beginning at age 2; child speaks in 2 word statements. 357. Two-Factor Theory:  called Schachter-Singer Theory; to experience emotion, one must be physically aroused and cognitively label the arousal. 358. Type A:  competitive, hard-driving, impatient. 359. Type B:  easy-going, relaxed people. 360. Ultradian Rhythm :  short-term cycle; less than a day 361. Unconditioned Response:  the unlearned naturally occurring response to the unconditioned stimulus. 362. Unconditioned Stimulus:  a stimulus that unconditionally triggers a response. 363. Validity:  extent to which a test measures what its supposed to measure. 364. Variable-Interval Schedule:  reinforcement schedule that reinforces a response after random number of responses. 365. Variable-Ratio Schedule:  reinforcement schedule that reinforces a response after an unpredictable number of responses. 366. Vestibular Sense:  sense of body movement and position including balance. 367. Visual Cliff:  lab device for testing depth perception in infants and young animals. 368. Visual Encoding:  encoding of picture images. 369. Watson and Rayner:  famous for their â€Å"Little Albert† experiment. 370. Wavelength:  the distance from the peak of one light or sound wave to the peak of the next. 371. Weber’s Law:  the principle that, to be perceived as different, two stimuli must differ by a constant minimum percentage. 372. Wechsler Adult Intelligence Scale:  most widely used intelligence test; contains verbal and non-verbal sub-tests. 373. Wernicke’s Area:  controls language reception; a brain area involved in language comprehension and expression in left temporal lobe. 74. Wilhelm Wundt:  known as father of experimental psychology; established the first psychology laboratory. 375. Withdrawal:  the discomfort and distress that follow discontinuing the use of an addictive drug. 376. Working Memory:  a newer understanding of short-term memory that focuses on conscious, active processing of incoming auditory and visual spat ial information and of information retrieved from long-term memory. 377. X-Chromosome:  the sex chromosome found in both men and women. 378. Y-Chromosome:  the sex chromosome found only in men. 379. Young-Helmholtz Trichromatic Theory:  the theory that the retina contains three different color receptors – red, green and blue. absolute threshold:  Ã¢â‚¬â€œ The minimum stimulation needed to detect a particular stimulus 50 percent of the time. 2. accommodation:  Ã¢â‚¬â€œ The process by which the eye’s lens changes shape to focus near or far objects on the retina. 3. accommodations:  Ã¢â‚¬â€œ Adapting one’s current understandings (schemas) to incorporate new information. 4. acetylcholine:  Ã¢â‚¬â€œ A neurotransmitter that, among its functions, triggers muscle contraction. 5. acoustic encoding:  Ã¢â‚¬â€œ The encoding of sounds, especially the sound of words. . acquisition:  Ã¢â‚¬â€œ The initial stage in classical conditioning; the phase associating a neutral stimulus with an unconditioned stimulus so that the neutral stimulus comes to elicit a conditioned response. In operant conditioning, the strengthening of a reinforced response. 7. action potent ial:  Ã¢â‚¬â€œ A neural impulse; a brief electrical charge that travels down an axon. The action potential is generated by the movement of positively charged atoms in and out of channels in the axon’s membrane. 8. activation synthesis hypothesis:  Ã¢â‚¬â€œ Theory to describe dreaming that explains dreaming as being random neural activity hat the brain tries to make sense of. 9. acuity:  Ã¢â‚¬â€œ The Sharpness of vision. 10. addictions:  dependency to drugs comes about from potentially one use of the substance were the body can build up dependence to the substance. 11. adolescence:  Ã¢â‚¬â€œ The transition period from childhood to adulthood, extending from puberty to independence. 12. adrenal glands:  Ã¢â‚¬â€œ A pair of endocrine glands just above the kidneys. The adrenals secrete the hormones epinephrine (adrenaline) and norepinephrine (nonadrenaline), which help to arouse the body in times of stress. 13. ll or nothing law:  Ã¢â‚¬â€œ Increasing the stimulus abov e the threshold will not increase the action potential intensity. The neuron’s action is an all or nothing response; it either will fire or it will not. The strength of the stimulus does not effect action potential’s speed. 14. alpha waves:  Ã¢â‚¬â€œ The relatively slow brain waves of a relaxed, awake state. 15. alzheimer’s disease:  Ã¢â‚¬â€œ A progressive and irreversible brain disorder characterized by gradual deterioration of memory, reasoning, language, and, finally physical functioning. 16. amnesia:  Ã¢â‚¬â€œ The loss of memory 17. mygdala:  Ã¢â‚¬â€œ Two almond-shaped neural clusters that are components of the limbic system and are linked to emotion. 18. assimilation:  Ã¢â‚¬â€œ Interpreting one’s new experience in terms of one’s existing schemas. 19. association areas:  Ã¢â‚¬â€œ Areas of the cerebral cortex that are not involved in primary motor or sensory functions; rather, they are involved in higher mental functions such as lear ning, remembering, thinking, and speaking. 20. associative learning:  Ã¢â‚¬â€œ Learning that certain events occur together. The events may be two stimuli (as in classical conditioning) or a response and its consequences (as in operant conditioning). 1. attachment:  Ã¢â‚¬â€œ An emotional tie with another person; shown in young children by their seeking closeness to the caregiver and showing distress on separation. 22. audition:  Ã¢â‚¬â€œ The sense of hearing 23. automatic nervous system:  Ã¢â‚¬â€œ The part of the peripheral nervous system that controls the glands and the muscles of the internal organs (such as the heart). Its sympathetic division arouses; its parasympathetic division calms. 24. automatic processing:  Ã¢â‚¬â€œ Unconscious encoding of incidental information, such as space, time, and frequency, and of well-learned information, such as word meanings. 25. xon:  Ã¢â‚¬â€œ The extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands. 26. barbiturates:  Ã¢â‚¬â€œ Drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgement. 27. basiler membrane:  within the cochlea of the inner ear is a stiff structural element that separates two liquid-filled tubes that run along the coil of the cochlea, the scala media and the scala tympani. 28. behavioral genetics:  Ã¢â‚¬â€œ The study of the relative power and limits of genetic and environmental influences on behavior. 29. Behavioral Psychology:  a branch of psychology that focuses on how we learn from observable responses. An individuals’ response to different environment stimuli shapes our behaviors. 30. Behaviorism:  The view that psychology should be an objective science that studies behavior without reference to mental processes. Most research psychologists today agree that psychology should be an objective science but do not think that it should be without reference to mental processes. 31. behaviorism:  Ã¢â‚¬â€œ The view that psychology (1) should be an objective science that (2) studies behavior without reference to mental processes. For example, intelligence may be operationally defined as what an intelligence test measures. 193. opiates:  Ã¢â‚¬â€œ Opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety. 194. opponent-process theory:  Ã¢â‚¬â€œ The theory that opposing retinal processes (red-green, yellow-blue, white-black) enable color vision. For example, some cells are stimulated by green and inhibited by red; others are stimulated by red and inhibited by green 195. optic nerve:  Ã¢â‚¬â€œ The nerve that carries neural impulses from the eye to the brain. 96. parallel processing:  Ã¢â‚¬â€œ The processing of several aspects of a problem simultaneously; the brain’s natural mode of information processing for many functions, including vision. Contrasts with the step-by-step (serial) processing of most computers and of conscious problem solving. 197. parallel processing:  Ã¢â‚¬â€œ The processing of several aspects of a problem simul taneously; the brain’s natural mode of information processing for many functions, including vision. Contrasts with the step-by-step (serial) processing of most computers and of conscience problem solving. 198. Parasympathetic nervous system:  Ã¢â‚¬â€œ The division of the autonomic nervous system that calms the body, conserving its energy. 199. parietal lobes:  Ã¢â‚¬â€œ The portion of the cerebral cortex lying at the top of the head and toward the rear; includes the sensory cortex. 200. Peripheral nervous system:  Ã¢â‚¬â€œ The sensory and motor neurons that connect the central nervous system (CNS) to the rest of the body. 201. PET:  Ã¢â‚¬â€œ A visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task. 202. Phenotype:  Ã¢â‚¬â€œ An organisms physical characteristics is its phenotype.

Flaws with Utilitarianism Essay - 628 Words

Among the most glaring problems that I see with Utilitarianism is its inclusion of animals under the umbrella that blankets this theory. It seems irrefutable that there exists an inordinate number of cases where the consequence that is against the best interest of an animal is favorable to humans, yet that dictating action is one that has been continually taken and condoned by the general public. This is a fundamental challenge, as the Utilitarian philosophy decrees that the pleasure and pain experienced by all individuals, including animals, has equal worth and must be considered when determining the net benefit of an action’s consequences. nbsp;nbsp;nbsp;nbsp;nbsp;The most drastic and prevalent of examples that one could provide to†¦show more content†¦Animals are bread forcibly, then nourished with specific intent of managing fat content, meat flavor, and healthiness, each of which discounts the Utilitarian claim that nature makes our carnivorous methods ethically permissible. Secondly, and perhaps more fundamentally, such a claim is in direct contradiction to the Utilitarian tenet that each individual has equal value regardless of identity or stature. Because humans could be sufficiently nourished without the killing of animals, it cannot be argued that the consequence of causing death to an animal is equivalent or less substantial than that of feeding a man. nbsp;nbsp;nbsp;nbsp;nbsp;Conversely, there exist equally as many challenges to raise had the ethicist taken the alternate position that animals have equal value and accordingly that their pleasure is impermissibly infringed upon when they are killed for human interest. Arguments could be presented for a bevy of actions taken on a daily basis by society as a whole. One might address the fact that using animal testing for the advancement of medicine has benefits that outweigh the pains. Similarly, while the development of land effectively kills the previously animal inhabitants, it is an accepted result that society has displayed it is willing to disregard. In each of these cases, the majority of society condones such behavior, as evidenced by theirShow MoreRelatedUtilitarianism And Its Flaws Of John Stuart Mill s Defends Utilitarianism Essay1307 Words   |  6 PagesEthics from a Global Perspective 7 December 2016 Utilitarianism and its Flaws John Stuart Mill’s defends utilitarianism, an ethical theory according to which, as he puts it, â€Å"actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness† (155 Ethics). In other words, actions are morally right if they make us happy and actions are morally wrong if they make us unhappy. 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