Secondary Conditioned Reflexes
When he and Stefan Miller were medical students in Warsaw they proposed another type of conditioned reflex in addition to that discovered by Pavlov which was under the control of reward. This has come to be known as "type II conditioned reflexes," or secondary conditioned reflexes Type II conditioned reflexes are now known as operant or instrumental conditioning.
He spent two years at Pavlov's laboratory as the result of a letter that he sent to Pavlov describing this work. Pavlov however was never convinced that instrumental conditioning (which Konorski called "Type II" to distinguish it from Pavlov's "Type I" learning) differed in any important way from his own Type I conditioning.
An exchange between B. F. Skinner and Konorski also occurred over the two types of learning. Skinner had originally referred to operant conditioning as Type I and Pavlovian conditioning as Type II. Konorski agreed to revise his nomenclature to avoid confusion.
Read more about this topic: Jerzy Konorski
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