title: Why don't guiding cues always guide in behavior chains?
abstract: This research focused on the changes in stimulus control that influence an animal's ability to master a behavioral skill. We assessed stimulus control by (a) predictive environmental cues (panel lights) and (b) practice cues resulting from the subject's own behavior, as rats learned to complete a left-right lever-press sequence. Following a demonstration of overshadowing by Reid, Nill, and Getz (Behavioural Processes 84: 511-515, 2010), in which stimulus control by the panel lights overshadowed control by practice cues, four additional experiments replicated and assessed this overshadowing effect. In Experiment 1, we discovered a powerful asymmetry: Rats failed to adapt to a lights → reversed-lights transition, but adapted immediately to a reversed-lights → lights transition. Experiment 2 was designed to measure the interactions between these stimulus conditions and practice cues. In Experiment 3, we measured the effect of these stimulus conditions on acquisition rates. Finally, in Experiment 4 an ABA design was used to assess the effects of prior exposure to condition A on B → A transitions, and we found that prior exposure generally reversed the effects observed in B → A transitions presented first or in isolation. We discuss feature-positive bias and spatial S-R compatibility as potential explanations of the observed insensitivity to cues that should be, at face value, highly predictive of food during the acquisition of a behavioral skill. Perfectly predictive cues in behavior chains do not always guide behavior.
authors.affiliation: Department of Psychology, Wofford College, 429 N. Church Street, Spartanburg, SC, 29303, USA, reidak@wofford.edu.
authors.forename: Alliston K
authors.initials: AK
authors.lastname: Reid
authors.forename: Hannah F
authors.initials: HF
authors.lastname: Rapport
authors.forename: Thien-An
authors.initials: TA
authors.lastname: Le
mesh_terms: D000818:Animals; D003213:Conditioning, Psychological; D003463:Cues; D007858:Learning