Postingestive modulation of the sweetness preference gradient in the rat

Booth, D A, Lovett, D and McSherry, G M (1972) Postingestive modulation of the sweetness preference gradient in the rat. Journal of Comparative and Physiological Psychology, 78 (3). pp. 485-512. ISSN 0021-9940

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Preference 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.

Item Type: Article
Schools and Departments: School of Psychology > Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology > BF0180 Experimental psychology
Q Science > QP Physiology
Depositing User: prof. David Booth
Date Deposited: 01 Mar 2015 10:45
Last Modified: 24 Apr 2015 14:28
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