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Related Experiment Video

Updated: Jun 16, 2026

Studying Food Reward and Motivation in Humans
12:09

Studying Food Reward and Motivation in Humans

Published on: March 19, 2014

Familiarity changes expectations about fullness.

Jeffrey M Brunstrom1, Nicholas G Shakeshaft, Erin Alexander

  • 1Department of Experimental Psychology, University of Bristol, 12a Priory Road, Bristol BS8 1TU, England, UK. Jeff.Brunstrom@Bristol.ac.uk

Appetite
|February 9, 2010
PubMed
Summary
This summary is machine-generated.

Food familiarity, like with sushi, can increase expected satiation over time. This suggests that our perception of how filling a food will be changes with repeated consumption, challenging initial expectations.

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Last Updated: Jun 16, 2026

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Area of Science:

  • Behavioral Science
  • Nutritional Psychology
  • Food Science

Background:

  • Expected satiation, or the anticipated feeling of fullness from food, strongly influences portion size selection.
  • Understanding how expectations of fullness evolve is crucial for comprehending eating behaviors and dietary intake.

Purpose of the Study:

  • To investigate whether expected satiation for specific foods changes with increased exposure or familiarity.
  • To explore the relationship between food consumption frequency and the perceived satiating capacity of foods.

Main Methods:

  • Fifty-eight participants rated the expected satiation of eight test foods, including sushi and muesli.
  • Participants also reported their consumption frequency for each of the tested foods.
  • Statistical analysis examined the correlation between food familiarity and expected satiation ratings.

Main Results:

  • A significant increase in expected satiation was observed with greater familiarity for sushi.
  • Across multiple test foods, higher consumption frequency was associated with increased expected satiation.
  • These findings support the concept that experience modifies our perception of a food's ability to induce fullness.

Conclusions:

  • Repeated consumption of a food can alter its expected satiating effect, a phenomenon termed 'satiation drift'.
  • This suggests that initial low expectations of satiation for novel foods may be overcome through experience.
  • Understanding satiation drift has implications for dietary recommendations and managing food preferences.