title: Investigation of the devaluation interpretation of anticipatory negative contrast.
abstract: Rats suppress intake of an acceptable substance (e.g., 0.15% saccharin) when it is followed by a preferred substance (e.g., 32% sucrose) in once per day pairings. The role of a learned devaluation of the initial solution in suppressed intake (anticipatory negative contrast) was investigated. The findings included the following: (a) Flavors or odors as within-subject cues precluded the occurrence of anticipatory contrast, conditioning flavor and odor preferences instead, which appeared to antagonize suppressed intake. (b) Anticipatory contrast was obtained when within-subject context cues, temporal alternation cues, or drinking-spout cues were used. (c) Preference tests conducted with the spout cues showed that devaluation of the initial substance was not necessary for the occurrence of negative anticipatory contrast.
authors.affiliation: Psychology Department, Rutgers University, New Brunswick, New Jersey 08903, USA.
authors.forename: C F
authors.initials: CF
authors.lastname: Flaherty
authors.forename: C
authors.initials: C
authors.lastname: Coppotelli
authors.forename: P S
authors.initials: PS
authors.lastname: Grigson
authors.forename: C
authors.initials: C
authors.lastname: Mitchell
authors.forename: J E
authors.initials: JE
authors.lastname: Flaherty
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D005247:Feeding Behavior; D005518:Food Preferences; D008297:Male; D051381:Rats; D017207:Rats, Sprague-Dawley; D012439:Saccharin; D013395:Sucrose
chemical_list: D013395:Sucrose; D012439:Saccharin