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Neurogastroenterol Motil. 2017 May;29(5). doi: 10.1111/nmo.13011. Epub 2017 Jan 5.

Relation between cognitive and hedonic responses to a meal.

Author information

1
Digestive System Research Unit, Departament de Medicina, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain.

Abstract

BACKGROUND:

Ingestion of a meal induces cognitive and hedonic sensations and our aim was to determine the relation between both dimensions.

METHODS:

In three groups of healthy non-obese men (n=10 per group) three types of meals with equivalent levels of palatability were tested: a liquid meal, a solid-liquid low-calorie meal, and a solid-liquid high-calorie meal. The cognitive and hedonic responses were measured on 10-cm scales before and during the 30-minute postprandial period.

KEY RESULTS:

The liquid meal induced a relatively strong cognitive response with satiation (4.7±0.7 score increment), fullness (3.3±0.7 score increment), and inhibition of desire of eating a food of choice; in contrast, its impact on sensation of digestive well-being and satisfaction was not significant (0.7±0.7 score increment). The high-calorie solid-liquid meal, with larger volume load and caloric content, induced much lower satiation (2.4±0.8 score increment; P=.041 vs liquid meal) and fullness sensation (1.3±0.6 score increment; P=.031 vs liquid meal), but a markedly higher level of satisfaction (2.7±0.4 score increment; P=.021 vs liquid meal); the low-calorie mixed meal had less prominent effects with significantly lower satisfaction (1.0±0.4 score increment; P=.039 vs high-calorie meal).

CONCLUSIONS AND INFERENCES:

The cognitive (satiation, fullness) and hedonic responses (satisfaction) to meals with equivalent levels of palatability, that is, equally likable, are dissociable. The characteristics of meals in terms of satiation and rewarding power could be adapted to specific clinical targets, whether nutritional supplementation or restriction.

KEYWORDS:

hedonic response; meal ingestion; palatability; postprandial sensations

PMID:
28054426
DOI:
10.1111/nmo.13011
[Indexed for MEDLINE]
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