B.F. Skinner

Burrhus Frederic Skinner, an American psychologist, was known for his research on behaviourism and behaviour analysis. Skinner put forward the concept of Operant Conditioning and suggested that the behaviour of an individual depends greatly on the environmental factors around them. His proposed theories challenged the traditional views during his time and earned him popularity due to the traction they gained among the scientific community.

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Skinner's theory of Operant Conditioning contrasts with Pavlov’s classical conditioning. Skinner held that reinforcement and punishment better explained behaviour using a theoretical framework grounded in learning through experience. He developed a method for studying behaviour using the operant conditioning chamber otherwise called Skinner Box. His experiments involved the use of animals like rats or pigeons, wherein they were taught to activate levers or respond to particular stimuli (e.g., lights, sounds) to receive positive reinforcers, such as food pellets. Negative reinforcement was also studied in a similar manner, where completing a task was rewarded with the removal of an aversive stimulus (like a loud alarm). Certain variants of the Skinner Box experiment involved positive punishment, where animals were punished with certain aversive stimuli for crossing a line.

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Skinner also invented the cumulative recorder, whose primary role was to graph response rates, helping him conduct studies on how various reinforcement schedules affected behaviour. Skinner termed his approach Radical Behaviourism, arguing that environmental factors were the most important in determining behaviour. His fictional work, Walden Two, imagined a society that operates in the absence of free will and uses controlled environments to influence behaviour. He believed such a society could produce significant social outcomes for its residents by modifying environmental variables, enabling them to flourish within conditions that supported their development.

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Skinner's work also directly influenced the development of Applied Behaviour Analysis. Behaviour Analysts use principles such as reinforcement to develop strategies for developing socially significant and meaningful behaviour changes. Techniques such as task analysis, fading, prompting, and shaping are foundational to ABA, particularly for those working with individuals with Autism Spectrum Disorder (ASD) and other developmental disorders.

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Though he received criticism during his life, Skinner’s contributions to behavioral science in general, as well as to ABA and operant conditioning, have stood the test of time. His theories still impact educational practices, intervention programs, and contemporary psychology, making Skinner an important contributor to behaviorism.

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References: 

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Skinner, B. F. (1971). Beyond freedom and dignity. Alfred A. Knopf. https://archive.org/stream/Beyond_Freedom_and_Dignity/Beyond%20Freedom%20%26%20Dignity%20-%20Skinner_djvu.txt

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B.F. Skinner Foundation. (n.d.). Biographical information. B.F. Skinner Foundation. https://www.bfskinner.org/archives/biographical-information/​

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Harvard University, Department of Psychology. (n.d.). B. F. Skinner. https://psychology.fas.harvard.edu/people/b-f-skinner