title: Changes in Intensity of Punishment: Effect on Running Behavior of Rats.
abstract: Changing the strength of punishment produced only minor changes in rats' speed of running to food and shock at the goal of an alley. The persistence of running behavior after increased or decreased shock intensity is attributed to a stereotyped withdrawal response conditioned at the goal during initial punishment training.
authors.forename: E B
authors.initials: EB
authors.lastname: Karsh