title: Overshadowing of responding on ratio and interval schedules by an independent predictor of reinforcement.
abstract: This experiment replicated previous demonstrations that interposing a brief stimulus between reinforced responses and the presentation of the reinforcer reduces responding maintained by intermittent reinforcement schedules. Furthermore, we could find no significant difference between the relative size of the reduction during training on ratio and interval schedules when the predictive significance of the response and stimulus was controlled by a yoking procedure.
authors.affiliation: Experimental Psychology Dept., University of Cambridge, Downing Street, Cambridge CB2 3EB England.
authors.forename: A
authors.initials: A
authors.lastname: Dickinson
authors.forename: R C
authors.initials: RC
authors.lastname: Peters
authors.forename: S
authors.initials: S
authors.lastname: Shechter