title: Acquisition and maintenance of postshock response pattern in nondiscriminated avoidance with rats.
abstract: Five experimentally naive albino rats were placed under a nondiscriminated lever-press avoidance schedule in which the delay to the next shock for responses after a shock was longer than the delay for responses after a response. Four rats acquired the postshock response pattern and maintained it for a prolonged period. The results revealed that postshock responding was under operant control and was not purely shock-elicited. It was suggested that the two kinds of response-shock interval, i.e. the shock-response-shock interval and the response-response-shock interval, could and should be independently controlled in nondiscriminated avoidance schedules.
authors.forename: S
authors.initials: S
authors.lastname: Shimai
authors.forename: H
authors.initials: H
authors.lastname: Imada