Autoshaping with several concurrently available conditioned stimuli

Abstract

Nine pigeons were trained with an autoshaping procedure that provided six concurrent conditioned stimuli (CSs). Each bird pecked particular keys within 2•133 trials (group mean = 49). The CSs included a white key, a flickering white key, an alternating white light with a white "x," and a white light that moved across three keys. Rearranging the CSs on the keys did not greatly influence the response distributions of seven of the birds.