title: Apparatus for quantitative evaluation of visually guided pecking in the pigeon.
abstract: An apparatus using a phase-locked loop is described which allows automated, differential counts of correct and incorrectly oriented pecks, elicited by apomorphine in the pigeon. This apparatus provides a unique and precise means for the study of this characteristic, visually guided behavior.
mesh_terms: D000818:Animals; D001058:Apomorphine / Q000494:pharmacology; D003116:Color; D010856:Columbidae / Q000502:physiology*; D003216:Conditioning, Operant / Q000187:drug effects / Q000295:instrumentation; D004193:Discrimination Learning / Q000187:drug effects; D011589:Psychology, Experimental / Q000295:instrumentation*
chemical_list: D001058:Apomorphine