Discomfort: not pain but still unpleasant feelings from the gut

Bárdos, G. and Gyetvai, Beatrix and Móricz, Krisztina and et al., (2002) Discomfort: not pain but still unpleasant feelings from the gut. Acta Biologica Hungarica, 53 (4). pp. 423-434. ISSN 0236-5383

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Abstract

Most of the factors initiating food or fluid intake have already been studied, but much less is known about those terminating ingestion. We have hypothetised that discomfort originating from the gastrointestinal system may be one of those factors. Gut distension cause pain if the intestinal volume changes but merely discomfort if only the tension of the gut wall increases. It seems that mild unpleasantness (i.e. discomfort) arising from the gut as a result of moderate (quasi-isometric) distension, among and in concordance with other factors, may significantly reduce intake and hence contribute to physiological satiety. The arising discomfort can be detected by measuring the amount and rate of the ingestion, by recording and analysing ingestive behavior by taste-aversivity and taste-reactivity tests, etc. Conclusions of all experiments point to the same direction: tension increase in the gut wall causes discomfort and results in decrease of intake, i.e. satiety.

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