Wednesday, September 10, 2014

Cognitive Psychology

Cognitive Psychology emerged as an extension to the school of thought behaviorism because of criticism that behaviorism is just one way of understanding human behavior and that behavioral theories does not account for free will and internal influences on behavior such as moods, thoughts and feelings. The development of cognitive psychology was referred to as a time period called the cognitive revolution where researchers began to focus on attention, memory and problem solving.
Cognitive psychology is the branch of psychology that studies mental processes including how people think, perceive, remember and learn.  As part of the larger field of cognitive science this branch of psychology is related to other disciplines including neuroscience, philosophy and linguistics (Cherry, 2013).  The main focus of cognitive psychology is on how people obtain, process and store information.  There are many useful functions for cognitive research, such as improving memory, increasing decision-making and providing structure for educational curriculum to enhance learning.
The Gale encyclopedia of psychology states that some cognitive psychologists may study how internal cognitive operations can transform symbols of the external world others on the interplay between genetics and environment in determining individual cognitive development and capabilities.  Still other cognitive psychologists may focus their studies on how the mind detects, selects, recognizes, and verbally represents features of a particular stimulus (Strickland, 2001).”  Cognitive psychologists focus on many topics such as language acquisition, visual and auditory perception; information storage and retrieval; altered states of consciousness; cognitive restructuring (how the mind mediates between conflicting, or dissonant, information); and individual styles of thought and perception (Strickland, 2001).
A key milestone in the development of cognitive psychology as a discipline was when American psychologist Jerome Bruner began research on the study of sensation and perception as being active, rather than passive processes (Brunner & Postman, 1949).  Bruner published his classic study Value and Need as Organizing Factors in Perception in which poor and rich children were asked to estimate the size of coins or wooden disks the size of American pennies, nickels, dimes, quarters and half-dollars. The results showed that the value and need the poor and rich children associated with coins caused them to significantly overestimate the size of the coins, especially when compared to their more accurate estimations of the same size disks (Brunner & Goodman, 1947).  Bruner and Leo Postman conducted another study that showed slower reaction times and less accurate answers when a deck of playing cards reversed the color of the suit symbol for some cards, an example of that would be black spades and red hearts. 
These series of experiments issued in what some called the 'New Look' psychology, which challenged psychologists to study not just an organism's response to a stimulus, but also its internal interpretation (Bourgoin, 1997).   After Brunner conducted these experiments on perception he then focused his attention to the actual cognitions that he had indirectly studied in his perception studies.
The classic theory of cognitive dissonance developed by Leon Festinger was another key milestone in the development of cognitive psychology as a discipline.  Cognitive dissonance describes how people manage conflicting cognitions about themselves, their behavior, or their environment (Strickland, 2001).  In this theory Festinger suggested that conflict among such cognitions (which he termed dissonance) will make people uncomfortable enough to actually modify one of the conflicting beliefs to bring it into line with the other belief.  An example of conflicting cognitions used was “I smoke” and “smoking is bad” will lead a smoker either to alter the first statement by quitting, or the second one by telling himself or herself that smoking is not bad (Strickland, 2001).
Another key milestone in the development of cognitive psychology as a discipline was when Noam Chomsky reviewed B.F. Skinner’s book on language (Verbal Behavior).  Chomsky, a linguist at the Massachusetts Institute of Technology, argued that language cannot be explained through a stimulus response process as Skinner explained, because this does not account for some of the common facts about language. The creative use of language can be better explained as a central process than a peripheral process. Language is a way to express ideas, and the way that these ideas are turned into language is a cognitive process. Chomsky showed that language was much more complex than anyone previously believed and that behavioral explanations could not reasonably explain the complexities of language. Chomsky's language model included two types of structures: surface structures and deep structures (muskingum.edu, 1997).  
The development of engineering and computer science have been a key milestone in the development of cognitive psychology as a discipline, including computer simulation of cognitive processes for research purposes and the creation of information-processing models.  Herbert Simon and Allen Newell created the first computer simulation of human thought, called Logic Theorist, at Carnegie-Mellon University in 1956, followed by General Problem Solver (GPS) the next year  (Strickland, 2001).
Behavioral observation in cognitive psychology allows psychologists evaluate theories and inferences and test their predictions about behavior (Willingham, 2007).  Observing an individual’s behavior can suggest that there are different ways that a problem can be solved. Since there is no direct way to observe an individual’s mental processes, cognitive psychologists have to assume their existence based on observing behavior.  Willingham states in “The thinking animal” “that it is essential in cognitive psychology to use unobservable abstracts constructs and determine how they affect observable behavior (Willingham, 2007)”   Three types of behavioral research that serve cognitive psychology include descriptive, relational, and experimental research (Willingham, 2007).

Bourgoin, M. S. (1997). Encyclopedia of World Biography. Gale, 1(1), 1-2.
Brunner, J. S., & Postman, L. (1949). On the Perception of Incongruity: A Paradigm. Journal of Personality, 18(1), 206-223.
Brunner, J., & Goodman, C. (1947). Value and Need as Organizing Factors in Perception. Journal of Abnormal and Social Psychology, 42(1), 33-44.
Cherry, K. (2013). What is Cognitive Psychology. about.com. Retrieved from http://psychology.about.com/od/cognitivepsychology/f/cogpsych.htm
Strickland, B. (2001). Cognitive Psychology. The Gale Encyclopedia of Psychology, 2nd ed(1), 133-134.
Willingham, D. T. (2007). The thinking animal (3rd ed.). Upper Saddle River, NJ: Pearson/Allyn & Bacon.

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