Effects of hunger state on flavour pleasantness conditioning at home: flavour-nutrient learning vs. flavour-flavour learning

Mobini, Sirous, Chambers, Lucy and Yeomans, Martin (2007) Effects of hunger state on flavour pleasantness conditioning at home: flavour-nutrient learning vs. flavour-flavour learning. Appetite, 48 (1). pp. 20-28. ISSN 0195-6663

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Abstract

This study examined acquired liking of flavour preferences through flavourflavour and flavournutrient learning under hungry or sated conditions in a naturalistic setting. Each participant consumed one of three versions of a test drink at home either before lunch or after lunch: minimally sweetened (CONTROL: 3% sucrose, 40 kcal), artificially sweetened (3% sucrose 40 kcal plus artificial sweeteners ASPARTAME) and sucrose-sweetened (SUCROSE: 9.9% sugar, 132 kcal). The test drink was an uncarbonated peach-flavoured iced tea served in visually identical drink cans (330 ml). Participants preselected as sweet likers evaluated the minimally sweetened flavoured drink (conditioned stimulus, CS) in the same state (hungry or sated) in which they consumed the test drink at home. Overall, liking for the CS flavour increased in participants who consumed the SUCROSE drink, however, this increase in liking was significantly larger when tested and trained hungry than sated, consistent with a flavournutrient model. Overall increases in pleasantness for the CS flavour in participants who consumed the SUCROSE drink when sated or the ASPARTAME drink independent of hunger state, suggest that flavourflavour learning also occurred. These results are discussed in light of current learning models of flavour preference. Keywords: Flavournutrient learning; Flavourflavour learning; Post-ingestive effect; Nutritional need; Home-consumer trial

Item Type: Article
Schools and Departments: School of Psychology > Psychology
Depositing User: Lucy Chambers
Date Deposited: 06 Feb 2012 15:35
Last Modified: 13 Mar 2012 14:34
URI: http://sro.sussex.ac.uk/id/eprint/13439
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