Autoshaping with grain vs. water USs

An interesting comparison of a pigeon's keypecking CR following autoshaping with a 5-s grain US compared to a 5-s water US. For each type of US, the video shows two normal speed clips and one slow motion clip. The different behaviors demonstrate that the nature of the CR can depend on the type of US. Pigeons tend to peck at grain with an open beak and closed eyes, and they drink water with relatively closed beak and open eyes. Thus, the pigeon appears to be responding to the CS as though the CS were a substitute for the US (see Jenkins & Moore, 1973). (0:49)

Back to Animal Learning Videos