title: Simultaneous backward conditioned inhibition and mediated conditioning.
abstract: Demonstrations of retrospective revaluation suggest that remembered stimuli undergo a reduction in association with the unconditioned stimulus (US) present during learning. Conversely, demonstrations of mediated conditioning in flavor-conditioning experiments with rats suggest that remembered stimuli undergo an increase in association with the US present during learning. In a food allergy prediction task with 23 undergraduates, we demonstrated simultaneous backward conditioned inhibition and mediated conditioning effects. These results are compatible with the hypothesis that the direction of change (decrease or increase) in associative strength depends on whether the remembered stimulus was of a different category (conditioned stimulus/antecedent) or the same category (US/outcome) as the presented US.
authors.affiliation: Department of Psychology, National University of Singapore, Singapore 117570, USA. psysg@nus.edu.sg
authors.forename: Steven
authors.initials: S
authors.lastname: Graham
authors.forename: Hans Lee
authors.initials: HL
authors.lastname: Jie
authors.forename: Hui-Minn
authors.initials: HM
authors.lastname: Chan
authors.forename: I P L
authors.initials: IP
authors.lastname: McLaren
authors.forename: Andy J
authors.initials: AJ
authors.lastname: Wills
mesh_terms: D000328:Adult; D001245:Association Learning / Q000502:physiology*; D001362:Avoidance Learning / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology*; D005260:Female; D005512:Food Hypersensitivity / Q000523:psychology; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D008568:Memory / Q000502:physiology*; D055815:Young Adult