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Related Experiment Video

Updated: Jun 22, 2026

A Treatment Package without Escape Extinction to Address Food Selectivity

A Treatment Package without Escape Extinction to Address Food Selectivity

Published on: August 21, 2015

Conditioning 'fullness expectations' in a novel dessert.

Laura L Wilkinson¹, Jeffrey M Brunstrom¹

¹Department of Experimental Psychology, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, England, United Kingdom.

|June 9, 2009

Summary

Flavour-nutrient learning influences how much fullness people expect from food. While higher energy-dense foods increased expected satiation, this did not affect actual food intake in the study.

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Area of Science:

Nutritional science
Human sensory perception
Appetite regulation

Background:

Foods vary in their ability to induce satiety on a calorie-for-calorie basis.
Flavour-nutrient learning is a potential mechanism influencing satiety expectations.

Purpose of the Study:

To investigate if flavour-nutrient learning can alter expectations of satiation.
To determine if learned satiety expectations influence subsequent food intake.

Main Methods:

Participants (N=56) underwent a two-day study involving novel dessert consumption.
On day 1, participants tasted a dessert and consumed either a low or high energy-dense version.
On day 2, expected satiation and actual intake of an intermediate energy-dense dessert were measured.

Main Results:

Expected satiation significantly increased by 17.4% in the high energy-dense condition after day 1.
No significant difference in actual food intake was observed between conditions on day 2.
Sensory characteristics of the desserts were matched to isolate the effect of energy density.

Conclusions:

Flavour-nutrient learning can enhance satiety expectations, particularly with energy-dense foods.
Learned increases in expected satiation do not automatically translate to reduced food intake.
Further research is needed to understand the dissociation between satiety expectations and intake behavior.