title: Bar press and bar release as avoidance responses.
abstract: Two experiments were performed in which rats had to avoid shock by both pressing and releasing a bar within specified intervals. When the release-shock interval was held constant and the press-shock interval was increased, response rate decreased and bar holding increased. When the press-shock interval was held constant and the release-shock interval was increased, both response rate and bar holding decreased.
authors.forename: D
authors.initials: D
authors.lastname: Meltzer
authors.forename: J E
authors.initials: JE
authors.lastname: Tiller