title: Stimulus control of Pavlovian facilitation.
abstract: Two experiments were conducted using an autoshaping procedure with pigeons to examine whether dimensional stimulus control by a Pavlovian facilitator parallels the control established following operant discrimination training. Facilitation training consisted of the presentation of a black vertical line on a white background as the B stimulus in a feature-positive discrimination in which the A stimulus (white keylight) was followed by grain presentation only if preceded by B. In this way, B facilitates or sets the occasion for pecking at A. Subsequent testing for generalization along the line-orientation dimension produced decremental gradients when the facilitation paradigm incorporated an explicit feature-negative stimulus (B-). These results parallel the decremental control obtained following operant discrimination training and suggest that Pavlovian facilitators and instrumental discriminative stimuli are functionally equivalent.
authors.forename: B K
authors.initials: BK
authors.lastname: Parker
authors.forename: S L
authors.initials: SL
authors.lastname: Serdikoff
authors.forename: B J
authors.initials: BJ
authors.lastname: Kaminski
authors.forename: T S
authors.initials: TS
authors.lastname: Critchfield