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Related Experiment Video

Updated: May 16, 2026

Control of Eating Behavior Using a Novel Feedback System

Control of Eating Behavior Using a Novel Feedback System

Published on: May 8, 2018

Episodic memory and appetite regulation in humans.

Jeffrey M Brunstrom¹, Jeremy F Burn, Nicola R Sell

¹Nutrition and Behaviour Unit, School of Experimental Psychology, University of Bristol, Bristol, United Kingdom.

|December 11, 2012

Summary

Memory of how much you ate significantly impacts hunger levels hours later. Believing you consumed more food, even if you didn't, reduces subsequent hunger and increases expected satiation.

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Area of Science:

Neuroscience
Psychology
Human Nutrition

Background:

Hippocampal-dependent memory processes are linked to hunger and food intake control.
Amnesia is associated with hyperphagia, suggesting memory's role in eating behavior.
The specific impact of 'memory for recent eating' in neurologically intact individuals remains under-explored.

Purpose of the Study:

To determine how memory of a recently consumed meal influences hunger and fullness over three hours.
To investigate the independent contribution of memory processes to satiety in humans.

Main Methods:

Volunteers were divided into four groups based on actual and perceived soup consumption (300ml vs. 500ml).
A computer-controlled pump covertly manipulated soup volume to independently alter actual and perceived intake.
Self-reported hunger and expected satiation were assessed immediately after, and two and three hours post-meal.

Main Results:

Immediately after eating, hunger was influenced by the actual amount of soup consumed, not the perceived amount.
Two to three hours post-meal, hunger was predicted by the perceived amount of soup consumed.
Participants who believed they consumed more soup reported less hunger and higher expected satiation 24 hours later.

Conclusions:

Memory of recent eating plays an independent and significant role in regulating satiety.
Manipulating perceived food intake holds potential for reducing energy consumption in humans.