Friday, January 19, 2007

B. F. Skinner studied squirrels and ants before he discovered the extinction curve with lab rats.

[Edit note April 28, 2017: I retain this post. I was calling ABA science then. It wasn't until much later that a reader critique of the original ABA-is-a cult-of-science led me to see how ABA is a pseudoscience masquerading as science. At this date, and up until 2014, after having believed Skinner and his followers, naïvely for seven blind years that they could be ethical if only they followed Skinner's warnings against punishment. Eventually, I came to see the hypocrite in each of them, especially Skinner, when in 2017 we see for certain that Skinner only opposed punitive coercion upon whom he called "normal" people. The others, disabled people especially, were "beyond" the reach of reinforcers only, as Skinner actually said and as Skinner actually led. I retain this post for historical and developmental purposes over the development of my findings, from blinded by the misrepresentations, subtle and obvious, out from the cave of darkness where the light to #NoABA, other ways instead, shines big and bright. A cursory read today makes it appear that this post, technically, helped me develop my Behavioral Prowess under which I learned to speak their language and stand up to them and see right through them as they spoke their jargon to parents and the media, all full of nonsense and doublespeak which the laymen don't get until they know what they're talking about, technically.]


B.F. Skinner (1979) studied squirrel and ant behavior before turning more intensively to rats in the later 1930s. His usual rat subject was male, white, healthy, one hundred days old, and a part of an experimental group of the same litter (Skinner, 1938, p. 48). He released them at feeding time into the dark, sound-proof space that came to be called the "Skinner box," even though he said he had never called it a Skinner box (1959, p. 620). He called it an "experimental chamber." Initially unconditioned, they explored the new surroundings as they normally would in nature. Sooner or later, they pressed down on the lever. This caused a pellet of food to drop into a tray. They heard the machine dispense it and they ate it. They would repeat the performance. When he saw a rate of lever pressing that rose above the natural unconditioned baseline level, he concluded that the probability of the lever presses per unit of time had increased. He reported that the behavior had strengthened and concluded that reinforcement had occurred (1938, p. 49).

An "apparatus" called a kymograph tallied action (Skinner, 1938, p. 59). He arranged for each press to cause a pen to nudge up a notch on a sheet of paper that he mounted upon a steadily revolving drum. This machine would draw a total response curve rising gradually with each response and with each bump of the stylus.

The image above in this post represents a total response extinction curve. It shows something akin to the lines he (1938) drew above the actual extinction curves in his rats after he smoothed out the irregularities and fluctuations from the real results. The image in the previous post shows a rate-of-response extinction curve. The previous post explains extinction in more detail. Basically extinction occurs when the researcher stops reinforcing a response he has already conditioned and the rate of response drops very low.

In "Conditioning and Extinction," his third chapter in The Behavior of Organisms, he (1938) included twenty-one graphs of total-response, three graphs of total-response and rate-of-response juxtaposed, one above the other, but no graphs of rate-of-response alone. Skinner could have presented the data either way. Was he in a hurry to publish his findings? Was he punished by the extra work involved in converting the data from the kymographic total-response curves into rates of response? Did the equipment itself condition his behavior? While he modified the behavior of rats, did the rats modify the behavior of B.F. Skinner. I'm only kidding. The evidence of rigor in his work is abundant. I got this joke from a cartoon I once saw.


Skinner, B. F. (1938). The behavior of organisms: An experimental analysis (1991 ed.). Cambridge, MA: B.F. Skinner Foundation.

Skinner, B. F. (1959). Cumulative record (1999 definitive ed.). Cambridge, MA: B.F. Skinner Foundation.

Skinner, B. F. (1971). Beyond freedom and dignity. New York: Knopf.

Skinner, B. F. (1979). The shaping of a behaviorist: Part two of an autobiography. New York: Knopf.

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I am an advocate for people with disabilities certified to teach special education with a Master of Arts in Teaching. I am not a Licensed Psychologist or a Board Certified Behavior Analyst. When in doubt, seek the advice of an MD, a PhD, or a BCBA. My ability to analyze the ethics of ABA stems from the fact that I am disabled and ABA interventions are often done to people like me, which I voluntarily accept, but only when I alone am the person granting consent, and not a parent, sibling, guardian, or institution.