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Behaviorism

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Abstract

The year 1913 marks the birth of the most radical of all psychological concepts, that of "Behaviorism" (Moore, 1921). Since the original behavioral theories were studied by scientists such as Edward Thorndike and John B. Watson, there have been many variations of the behaviorist view that have surfaced over the years. In this paper I will attempt to give a detailed description of the history of behaviorism including information about some of the most influential men associated with this movement. I will also explain the methodologies associated with behaviorism such as classical conditioning, operant conditioning, and other controversial theories and views.

Behaviorism

The atmosphere surrounding the psychological community in the early 20th century had grown stale and weary after many years of highly mentalistic and overly "conscious" theories. In 1913, John B. Watson gave several lectures describing a new, exclusively mentalistic concept of the science of psychological study. Watson abandoned any possibility of introspection, choosing to claim that psychology can only be the study of observable human behavior and anything that is not observable does not exist. To many psychologists of his time, Watson's new theories were not only radical, but ridiculous, but "to the younger American psychologists, fatigued and discouraged by introspective verbosity concerning the thought processes, behaviorism came as a godsend" (Berman, 1927). Since its conception, behaviorism has gone through many transformations beginning with Watson's radical behaviorism and branching into other areas such as philosophical behaviorism, physiological behaviorism, social behaviorism, and eclectic behaviorism.

The Behaviorists

In 1913, in one of the most famous lectures in the history of psychology, John Broadus Watson (1878-1958) called for a radical revisioning of the scope and method of psychological research:

"Psychology as the behaviorist views it is a purely objective experimental branch

of natural science. Its theoretical goal is the prediction and control of behavior. Introspection forms no essential part of its methods, nor is the scientific value of its data dependent upon the readiness with which they lend themselves to interpretation in terms of consciousness. The behaviorist, in his efforts to get a unitary scheme of animal response, recognizes no dividing line between man and brute. The behavior of man, with all of its refinement and complexity, forms only a part of the behaviorist's total scheme of investigation." (Watson, 1913)

"Generations of psychologists, reared in a post-Watsonian discipline that defined itself as the "science of behavior", were taught that Watson was the father of behaviorism and that February 24, 1913 was the day on which modern behaviorism was born" (Wozniak, 1997).

Watson was considered radical in his views of behavioral psychology. Watson (1912) advocated a radically different approach. Where received "wisdom" took conscious experience to be the very stuff of minds and hence the only appropriate object of psychological investigation, Watson advocated an approach that led, scientifically, "to the ignoring of consciousness" and the illegitimacy of "making consciousness a special object of observation". He completely denied the concept of consciousness and the mind thus reducing psychological study to a purely objective science. According to Wozniak (1997), "introspection was to be abandoned in favor of the study of behavior. Behavior was to be evaluated in its own right, independent of its relationship to any consciousness that might exist."

Watson is associated with his work in classical conditioning. We use the term "classical conditioning" to describe one type of associative learning in which there is no contingency between response and reinforcer. Watson demonstrated classical conditioning in an experiment involving a young child ,Albert, and a white rat. Originally, Albert was unafraid of the rat; but Watson created a sudden noise whenever Albert touched the rat. Because Albert was frightened by the loud noise, he soon became conditioned to fear and avoid the rat. Watson then extinguished the fear by presenting the rat without the loud noise.

Through the years since John Watson initially fathered the theories behind behaviorism, there have been many theorists who have questioned his radical practices and elaborated on his methodologies. Yet, through the many controversies and skepticism, the theories of our modern day humanistic and more eclectic behaviorism are still deeply rooted in the early works of Watson.

Another of the key players in the development of the behaviorist theory and, like Watson, most known for his work in classical conditioning is Ivan Pavlov (1849-1936). In fact, Pavlov is famed for first introducing classical conditioning in 1903. Pavlov's most famous experiment where he demonstrated classical conditioning involved a dog, food, and a bell. "Before conditioning, ringing the bell caused no response from the dog. Placing food in front of the dog initiated salivation. During conditioning, the bell was rung a few seconds before the dog was presented with food. After conditioning, the ringing of the bell alone produced saliva" (Dembo, 1994).

During this experiment, Pavlov coined several terms to define the stimulus-response associations that he discovered. The initiation of salivation due to the presence of the food was an unconditioned association. The phrase unconditioned association refers to the fact that the dog did not have to learn how to salivate in the presence of the food. In an unconditioned association, the stimulus that causes the unconditioned response is called the unconditioned stimulus (UCS) and the reaction that naturally occurred to the unconditioned stimulus was the unconditioned response (UCS). In contrast, the initiation of salivation due to the ringing of the bell is called a conditioned association. A conditioned association happens when a learned response is elicited from a stimulus that was previously a neutral stimulus. In a conditioned association, the stimulus that, though previously neutral, now causes the response is called a conditioned stimulus (CS) and the learned response is called a conditioned response (CR). Some other observations made and studied by Pavlov were acquisition, stimulus generalization, extinction, spontaneous recovery, stimulus discrimination, and higher-order conditioning.

Acquisition

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