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Directed by
video of his experiments during the early
Featuring
B. F. Skinner
Description
Here is the begining of it all:
B. F. Skinner’s entire system is based on operant conditioning. The pigeon is in the process of “operating” on the environment, which in ordinary terms means it is bouncing around its world, doing what it does. During this “operating,” the pigeon encounters a special kind of stimulus, called a reinforcing stimulus, or simply a reinforcer. This special stimulus has the effect of increasing the operant -- that is, the behavior occurring just before the reinforcer. This is operant conditioning: “the behavior is followed by a consequence, and the nature of the consequence modifies the pigeons tendency to repeat the behavior in the future."
Shaping
A question Skinner had to deal with was how we get to more complex sorts of behaviors. He responded with the idea of shaping, or “the method of successive approximations.” Basically, it involves first reinforcing a behavior only vaguely similar to the one desired. Once that is established, you look out for variations that come a little closer to what you want, and so on, until you have the animal performing a behavior that would never show up in ordinary life.
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