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Postingestive modulation of the sweetness preference gradient in the rat
journal contribution
posted on 2023-06-08, 20:09 authored by D A Booth, D Lovett, G M McSherryPreference for a solution of a particular sweetness is increased by its previous association with postingestive effects of 10% glucose or polysaccharide solutions. Sweetness acceptance is decreased by previous association with 25%-50% glucose solutions. Conditioning in these two directions simultaneously by continuous access to a choice of solutions can reverse the usual gradient of preference for the sweeter of two solutions. This reversal is initially facilitated, but after some days attenuated, by a high proportion of carbohydrate in the diet. The reversal extinguishes over a few days without reinforcement. Expression of the relative aversion to the sweeter solution is not dependent on immediately prior carbohydrate ingestion (unlike sickly taste in man). Such conditioned attractions and aversions may assist normal caloric regulation.
Funding
MRC-MEDICAL RESEARCH COUNCIL
History
Publication status
- Published
Journal
Journal of Comparative and Physiological PsychologyISSN
0021-9940Publisher
American Psychological AssociationExternal DOI
Issue
3Volume
78Page range
485-512Department affiliated with
- Psychology Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2015-03-01Usage metrics
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