title: Disruptive effects of contingent food on high-probability behavior.
abstract: The delivery of food contingent on 10 s of consecutive toy engagement resulted in a decrease in engagement and a corresponding increase in other responses that had been previously reinforced with food. Similar effects were not observed when tokens exchangeable for the same food were delivered, suggesting that engagement was disrupted by the contingent provision of the food, which may have functioned as a discriminative stimulus that occasioned competing responses.
authors.affiliation: Kennedy Krieger Institute, Baltimore, Maryland 21205, USA.
authors.forename: Michelle A
authors.initials: MA
authors.lastname: Frank-Crawford
authors.forename: John C
authors.initials: JC
authors.lastname: Borrero
authors.forename: Linda
authors.initials: L
authors.lastname: Nguyen
authors.forename: Yanerys
authors.initials: Y
authors.lastname: Leon-Enriquez
authors.forename: Abbey B
authors.initials: AB
authors.lastname: Carreau-Webster
authors.forename: Iser G
authors.initials: IG
authors.lastname: DeLeon
mesh_terms: D001245:Association Learning / Q000502:physiology; D002648:Child; D002658:Developmental Disabilities / Q000209:etiology / Q000534:rehabilitation*; D004193:Discrimination Learning; D005502:Food; D006801:Humans; D008297:Male; D011336:Probability; D012054:Reinforcement, Psychology