Brian is using shaping by successive approximations (along w…
Brian is using shaping by successive approximations (along with physical prompting) to train his cat Starburst to play dead. At first, Starburst could earn a bite of tuna by just crouching down, then she had to lie on her side, and finally Brian planned to reinforce only lying on her back. Brian was frustrated because, when he stopped rewarding Starburst for lying on her side, she went back to simply crouching. Starburst’s return to crouching sounds like:
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