Behaviorism (or behaviourism), is the science of behavior that focuses on observable behavior only, it is also an approach to psychology that combines elements of philosophy, methodology, and theory. It emerged in the early twentieth century as a reaction to "mentalistic" psychology, which often had difficulty making predictions that could be tested using rigorous experimental methods. The primary tenet of behaviorism, as expressed in the writings of John B. Watson, B. F. Skinner, and others, is that psychology should concern itself with the observable behavior of people and animals, not with unobservable events that take place in their minds. The behaviorist school of thought maintains that behaviors as such can be described scientifically without recourse either to internal physiological events or to hypothetical constructs such as thoughts and beliefs.
From early psychology in the 19th century, the behaviorist school of thought ran concurrently and shared commonalities with the psychoanalytic and Gestalt movements in psychology into the 20th century; but also differed from the mental philosophy of the Gestalt psychologists in critical ways. Its main influences were Ivan Pavlov, who investigated classical conditioning although he did not necessarily agree with behaviorism or behaviorists, Edward Lee Thorndike, John B. Watson who rejected introspective methods and sought to restrict psychology to experimental methods, and B.F. Skinner who conducted research on operant conditioning.
In the second half of the 20th century, behaviorism was largely eclipsed as a result of the cognitive revolution. While behaviorism and cognitive schools of psychological thought may not agree theoretically, they have complemented each other in practical therapeutic applications, such as in cognitive–behavioral therapy that has demonstrable utility in treating certain pathologies, such as simple phobias, PTSD, and addiction. In addition, behaviorism sought to create a comprehensive model of the stream of behavior from the birth of a human to their death (see Behavior analysis of child development).
- 1 Versions
- 2 Behaviourism and education
- 3 Operant conditioning
- 4 Classical conditioning
- 5 Molar versus molecular behaviorism
- 6 Behaviorism in philosophy
- 7 Behaviorism in modern society
- 8 List of notable behaviorists
- 9 See also
- 10 References
- 11 Further reading
- 12 External links
There is no universally agreed-upon classification, but some titles given to the various branches of behaviorism include:
- Methodological: The behaviorism of Watson; the objective study of behavior; no mental life, no internal states; thought is covert speech.
- Radical: Skinner's behaviorism; is considered radical since it expands behavioral principles to processes within the organism; in contrast to methodological behaviorism; not mechanistic or reductionistic; hypothetical (mentalistic) internal states are not considered causes of behavior, phenomena must be observable at least to the individual experiencing them. Willard Van Orman Quine used many of radical behaviorism's ideas in his study of knowing and language.
- Teleological: Post-Skinnerian, purposive, close to microeconomics. Focuses on objective observation as opposed to cognitive processes.
- Theoretical: Post-Skinnerian, accepts observable internal states ("within the skin" once meant "unobservable," but with modern technology we are not so constrained); dynamic, but eclectic in choice of theoretical structures, emphasizes parsimony.
- Biological: Post-Skinnerian, centered on perceptual and motor modules of behavior, theory of behavior systems.
- Psychological behaviorism (PB) Arthur W. Staats: First general behaviorism that centers on human behavior. Created time-out, token-reinforcement and other methods, analyses, findings and the theory of that helped form behavioral child development, education, abnormal, and clinical areas—also terming this behavioral analysis in 1963. PB laid the basis for cognitive behavior therapy, provides basic theory and research that unifies emotional and behavioral conditioning, and introduces new avenues for basic and applied behavior analysis.
Two subtypes are:
- Hullian and post-Hullian: theoretical, group data, not dynamic, physiological;
- Purposive: Tolman's behavioristic anticipation of cognitive psychology
Skinner was influential in defining radical behaviorism, a philosophy codifying the basis of his school of research (named the Experimental Analysis of Behavior, or EAB.) While EAB differs from other approaches to behavioral research on numerous methodological and theoretical points, radical behaviorism departs from methodological behaviorism most notably in accepting states of mind and introspection as existent and scientifically treatable. This is done by characterizing them as something non-dualistic, and here Skinner takes a divide-and-conquer approach, with some instances being identified with bodily conditions or behavior, and others getting a more extended "analysis" in terms of behavior. However, radical behaviorism stops short of identifying feelings as causes of sexual behavior. Among other points of difference were a rejection of the reflex as a model of all behavior and a defense of a science of behavior complementary to but independent of physiology. Radical behaviorism has considerable overlap with other western philosophical positions such as American pragmatism. Another way of looking at behaviorism is through the lens of egoism, which is defined to be a causal analysis of the elements that define human behavior with a strong social component involved.
Experimental and conceptual innovations
This essentially philosophical position gained strength from the success of Skinner's early experimental work with rats and pigeons, summarized in his books The Behavior of Organisms and Schedules of Reinforcement. Of particular importance was his concept of the operant response, of which the canonical example was the rat's lever-press. In contrast with the idea of a physiological or reflex response, an operant is a class of structurally distinct but functionally equivalent responses. For example, while a rat might press a lever with its left paw or its right paw or its tail, all of these responses operate on the world in the same way and have a common consequence. Operants are often thought of as species of responses, where the individuals differ but the class coheres in its function-shared consequences with operants and reproductive success with species. This is a clear distinction between Skinner's theory and S–R theory.
Skinner's empirical work expanded on earlier research on trial-and-error learning by researchers such as Thorndike and Guthrie with both conceptual reformulations—Thorndike's notion of a stimulus–response "association" or "connection" was abandoned; and methodological ones—the use of the "free operant," so called because the animal was now permitted to respond at its own rate rather than in a series of trials determined by the experimenter procedures. With this method, Skinner carried out substantial experimental work on the effects of different schedules and rates of reinforcement on the rates of operant responses made by rats and pigeons. He achieved remarkable success in training animals to perform unexpected responses, to emit large numbers of responses, and to demonstrate many empirical regularities at the purely behavioral level. This lent some credibility to his conceptual analysis. It is largely his conceptual analysis that made his work much more rigorous than his peers', a point which can be seen clearly in his seminal work Are Theories of Learning Necessary? in which he criticizes what he viewed to be theoretical weaknesses then common in the study of psychology. An important descendant of the experimental analysis of behavior is the Society for Quantitative Analysis of Behavior.
Relation to language
As Skinner turned from experimental work to concentrate on the philosophical underpinnings of a science of behavior, his attention turned to human language with Verbal Behavior and other language-related publications; Verbal Behavior laid out a vocabulary and theory for functional analysis of verbal behavior, and was strongly criticized in a review by Noam Chomsky.
Skinner did not respond in detail but claimed that Chomsky failed to understand his ideas, and the disagreements between the two and the theories involved have been further discussed. Innateness theory is opposed to behaviorist theory which claims that language is a set of habits that can be acquired by means of conditioning. According to some, this process that the behaviorists define is a very slow and gentle process to explain a phenomenon as complicated as language learning. What was important for a behaviorist's analysis of human behavior was not language acquisition so much as the interaction between language and overt behavior. In an essay republished in his 1969 book Contingencies of Reinforcement, Skinner took the view that humans could construct linguistic stimuli that would then acquire control over their behavior in the same way that external stimuli could. The possibility of such "instructional control" over behavior meant that contingencies of reinforcement would not always produce the same effects on human behavior as they reliably do in other animals. The focus of a radical behaviorist analysis of human behavior therefore shifted to an attempt to understand the interaction between instructional control and contingency control, and also to understand the behavioral processes that determine what instructions are constructed and what control they acquire over behavior. Recently, a new line of behavioral research on language was started under the name of relational frame theory.
Behaviourism and education
Behaviourism focuses on one particular view of learning: a change in external behavior achieved through a large amount of repetition of desired actions, the reward of good habits and the discouragement of bad habits. In the classroom this view of learning led to a great deal of repetitive actions, praise for correct outcomes and immediate correction of mistakes. In the field of language learning this type of teaching was called the audio-lingual method, characterized by the whole class using choral chanting of key phrases, dialogues and immediate correction (e.g. Direct instruction). Within the behaviourist view of learning, the "teacher" is the dominant person in the classroom.
Behaviorist B. F. Skinner's key point is the need of immediate reinforcement to strengthen behavior. The use of mechanical devices to strengthen behavior in 1954 foreshadows the use of computers in today’s classrooms. According to Skinner, organisms learn by making changes in their environments. Skinner noted, “A significant change in behavior is often obvious as the result of a single reinforcement.”  Maintaining behavior strength requires gradual contingency changes and skillful use of schedules in conjunction with positive reinforcement. Competition has adverse consequences for all but one participant, whereas cooperation provides positive reinforcement for many. Cooperation is, therefore, preferable to competition. In addition, cooperation can be set up more easily than competition. The progressive education reform movement sought to use immediate positive consequences to modify or strengthen desired behavior, rather than relying on adverse events such as the teacher’s displeasure, ridicule of classmates, low grades, poor showing in competition, talks from the principal, or the birch rod from caregivers. When instructors use adverse events rather than positive reinforcement, the results are anxieties, boredom, and aggression rather than reinforced learning. A revision of classroom practices is needed. A single teacher cannot devote all of his or her time to providing positive reinforcement to only one child  A rough estimate of the contingencies required for successful behavior in mathematics during the first four years of school is approximately 25,000 contingencies. The responses to be set up far exceed the essential minimum provided by the homework or in class drills used in current classroom practice. Reinforcement devices have been designed that can provide immediate feedback to a pupil at work for an appropriate time each day. Using these devices allows a child to progress at his or her own rate. Skinner’s prophetic defense of mechanical devices states, “A country which annually produces millions of refrigerators, dish-washers, automatic washing-machines, automatic clothes-driers, and automatic garbage disposers can certainly afford the equipment necessary to educate its citizens to high standards of competence in the most effective way”. After 50 years, Skinner’s argument may still be drawn on to support the use of laptops as educational tools in today’s classrooms.
Operant conditioning was developed by B.F Skinner in 1937 and deals with the modification of "voluntary behaviour" or operant behaviour. Operant behavior operates on the environment and is maintained by its consequences. Reinforcement and punishment, the core tools of operant conditioning, are either positive (delivered following a response), or negative (withdrawn following a response). Skinner created the Skinner Box or operant conditioning chamber to test the effects of operant conditioning principles on rats.
Although operant conditioning plays the largest role in discussions of behavioral mechanisms, classical conditioning (or Pavlovian conditioning or respondent conditioning) is also an important behavior-analytic process that need not refer to mental or other internal processes. Pavlov's experiments with dogs provide the most familiar example of the classical conditioning procedure. In simple conditioning, the dog was presented with a stimulus such as a light or a sound, and then food was placed in the dog's mouth. After a few repetitions of this sequence, the light or sound by itself caused the dog to salivate. The salivation in response to food in the mouth is called an unconditioned response (UR) since it's not learned. The food in the mouth automatically triggers the dog to salivate. Pavlov called the food stimulus an unconditioned stimulus (US). When the dog salivated in response to the tone, this was called a conditioned response (CR). The dog learned the association between tone and food. The tone, which at first was neutral can now trigger the conditional salivation is called conditioned stimulus (CS). Additionally, Pavlov found when he made the sound over and over without presenting food, the dog’s salivation would lessen. When the salivation lessens over time this shows extinction. Extinction is caused by the diminished responding when the CS (tone) no longer indicates an approaching US (food). Also, Pavlov discovered when many hours passed before eliciting the tone, the salivation to the tone appeared spontaneously. The spontaneous recovery which is caused by the reappearance of a weakened CR after a pause, showed extinction was concealing the CR instead of eliminating it.
 Although Pavlov proposed some tentative physiological processes that might be involved in classical conditioning, these have not been confirmed.
Molar versus molecular behaviorism
Skinner's view of behavior is most often characterized as a "molecular" view of behavior; that is, behavior can be decomposed into atomistic parts or molecules. This view is inconsistent with Skinner's complete description of behavior as delineated in other works, including his 1981 article "Selection by Consequences." Skinner proposed that a complete account of behavior requires understanding of selection history at three levels: biology (the natural selection or phylogeny of the animal); behavior (the reinforcement history or ontogeny of the behavioral repertoire of the animal); and for some species, culture (the cultural practices of the social group to which the animal belongs). This whole organism then interacts with its environment. Molecular behaviorists use notions from melioration theory, negative power function discounting or additive versions of negative power function discounting.
Molar behaviorists, such as Howard Rachlin, Richard Herrnstein, and William Baum, argue that behavior cannot be understood by focusing on events in the moment. That is, they argue that behavior is best understood as the ultimate product of an organism's history and that molecular behaviorists are committing a fallacy by inventing fictitious proximal causes for behavior. Molar behaviorists argue that standard molecular constructs, such as "associative strength," are better replaced by molar variables such as rate of reinforcement. Thus, a molar behaviorist would describe "loving someone" as a pattern of loving behavior over time; there is no isolated, proximal cause of loving behavior, only a history of behaviors (of which the current behavior might be an example) that can be summarized as "love."
Behaviorism in philosophy
Behaviorism is a philosophy that evolved from movements in the disciplines of psychology and education. The basic premise of radical behaviorism is that the study of behavior should be a natural science, such as chemistry or physics, without any reference to hypothetical inner states of organisms as causes for their behavior. Less radical varieties are unconcerned with philosophical positions on internal, mental and subjective experience. Behaviorism takes a functional view of behavior. According to Edmund Fantino and colleagues: “Behavior analysis has much to offer the study of phenomena normally dominated by cognitive and social psychologists. We hope that successful application of behavioral theory and methodology will not only shed light on central problems in judgment and choice but will also generate greater appreciation of the behavioral approach.”.
Behaviorist sentiments are not uncommon within philosophy of language and analytic philosophy. It is sometimes argued that Ludwig Wittgenstein, defended a behaviorist position (e.g., the beetle in a box argument), but while there are important relations between his thought and behaviorism, the claim that he was a behaviorist is quite controversial. Mathematician Alan Turing is also sometimes considered a behaviorist, but he himself did not make this identification. In logical and empirical positivism (as held, e.g., by Rudolf Carnap and Carl Hempel), the meaning of psychological statements are their verification conditions, which consist of performed overt behavior. W.V. Quine made use of a type of behaviorism, influenced by some of Skinner's ideas, in his own work on language. Gilbert Ryle defended a distinct strain of philosophical behaviorism, sketched in his book The Concept of Mind. Ryle's central claim was that instances of dualism frequently represented "category mistakes," and hence that they were really misunderstandings of the use of ordinary language. Daniel Dennett likewise acknowledges himself to be a type of behaviorist, though he offers extensive criticism of radical behaviorism and refutes Skinner's rejection of the value of intentional idioms and the possibility of free will.
This is Dennett's main point in "Skinner Skinned." Dennett argues that there is a crucial difference between explaining and explaining away… If our explanation of apparently rational behavior turns out to be extremely simple, we may want to say that the behavior was not really rational after all. But if the explanation is very complex and intricate, we may want to say not that the behavior is not rational, but that we now have a better understanding of what rationality consists in. (Compare: if we find out how a computer program solves problems in linear algebra, we don't say it's not really solving them, we just say we know how it does it. On the other hand, in cases like Weizenbaum's ELIZA program, the explanation of how the computer carries on a conversation is so simple that the right thing to say seems to be that the machine isn't really carrying on a conversation, it's just a trick.)
— Curtis Brown, Philosophy of Mind, "Behaviorism: Skinner and Dennett"
Behaviorism in modern society
The principles of behaviorism are used today across a wide range of societal contexts, often unintentionally.
Training adults to be the managers of others’ behavior is one particular area where behaviorism has become popular recently. Performance management, parenting skills and nonhuman animal training have especially benefitted from positive reinforcement, shaping, extinction, time out, and many other behavior analytic research applications. Numerous popular reality television shows such as The Dog Whisperer and Supernanny recognize and frequently employ such behavioral techniques to improve people’s ability to manage child and pet behavior.
Behavioral principles are also commonly found in approaches to public health and sustainability. The Food Dudes program using modeling, exposure, and reinforcement to increase children’s consumption of fruits and vegetables has been successfully implemented across hundreds of schools in the UK and recently piloted in the US. Behavioral feedback systems have been implemented to significantly reduce water and energy consumption.
Recent interest in gamification and self-quanitification are largely based on behavior analytic techniques of self-management, feedback, and incentives. Many recent smartphone apps designed to boost productivity, maintain health related behaviors, and manage efforts to modify one’s own behavior are designed to employ positive and negative reinforcement and competitive social contingencies.
Although met with some controversy, behaviorism has been remarkably influential in modern video game design. Trophy systems, leveling arrangements, loot structures, and other common video game elements make use of behavioral techniques such as schedules of reinforcement and group contingencies. League of Legends, one of the most popular modern video games, recently formed a dedicated research team with a behavior psychologist to improve teamwork and reduce community toxicity.
Modern-day behaviorism, known as "behavior analysis," is a thriving field. The Association for Behavior Analysis: International (ABAI) currently has 46 state and regional chapters within the United States with approximately 41 additional chapters throughout Europe, Asia, South America, and the Middle East. The interests among behavior analysts today are wide ranging. The 37 Special Interest Groups (SIGs) within ABAI focus on topics including developmental disabilities and autism, gerontology, clinical psychology, verbal behavior, robotics, health, sports, sustainability, teaching, and Organizational Behavior Management (OBM; behavior analytic I–O psychology). OBM has developed a particularly strong following within behavior analysis, as evidenced by the formation of the OBM Network and the influential Journal of Organizational Behavior Management (JOBM; recently rated the 3rd highest impact journal in applied psychology by ISI JOBM rating).
Applications of behavioral technology, known as Applied Behavior Analysis or ABA, have been particularly well established in the area of developmental disabilities since the 1960s. Treatment of individuals diagnosed with autism spectrum disorders has grown especially rapidly since the mid-1990s. This demand for services encouraged the formation of a professional credentialing program administered by the Behavior Analyst Certification Board, Inc. (BACB) and accredited by the National Commission for Certifying Agencies. As of early 2012, there are over 300 BACB approved course sequences offered by about 200 colleges and universities world wide preparing students for this credential and approximately 11,000 BACB certificants, most working in the United States. The Association of Professional Behavior Analysts was formed in 2008 to meet the needs of these ABA professionals.
Modern behavior analysis has also witnessed a massive resurgence in research and applications related to language and cognition, with the development of Relational Frame Theory (RFT; described as a "Post-Skinnerian account of language and cognition"). RFT also forms the empirical basis for the highly successful and data-driven Acceptance and Commitment Therapy (ACT). Researchers and practitioners in RFT/ACT have become sufficiently prominent that they have formed their own specialized organization that is highly behaviorally oriented, known as the Association for Contextual Behavioral Science(ACBS). It has rapidly grown in its few years of existence to reach about 5,000 members worldwide. Some of the current prominent behavior analytic journals include the Journal of Applied Behavior Analysis (JABA), the Journal of the Experimental Analysis of Behavior (JEAB), the Journal of Organizational Behavior Management (JOBM), Behavior and Social Issues (BSI), as well as the Psychological Record. Currently, the U.S. has 18 ABAI accredited Master’s programs and 7 PhD programs for comprehensive study in behavior analysis.
The analysis of behavior at a cultural level has always been at the philosophical core of radical behaviorism as seen in Skinner’s Walden, Science & Human Behavior, Beyond Freedom & Dignity, and About Behaviorism. During the 1980s, behavior analysts, most notably Sigrid Glenn, had a productive interchange with cultural anthropologist Marvin Harris (the most notable proponent of "Cultural Materialism") regarding interdisciplinary work. Very recently, behavior analysts have produced a set of basic exploratory experiments in an effort toward this end.
List of notable behaviorists
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- Automated Behavior analysis
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