Computer-based assessments of expected satiety predict behavioural measures of portion-size selection and food intake

Laura L. Wilkinson*, Elanor C. Hinton, Stephanie H. Fay, Danielle Ferriday, Peter J. Rogers, Jeffrey M. Brunstrom

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

78 Citations (Scopus)

Abstract

Previously, expected satiety (ES) has been measured using software and two-dimensional pictures presented on a computer screen. In this context, ES is an excellent predictor of self-selected portions, when quantified using similar images and similar software. In the present study we sought to establish the veracity of ES as a predictor of behaviours associated with real foods. Participants (N = 30) used computer software to assess their ES and ideal portion of three familiar foods. A real bowl of one food (pasta and sauce) was then presented and participants self-selected an ideal portion size. They then consumed the portion ad libitum. Additional measures of appetite, expected and actual liking, novelty, and reward, were also taken. Importantly, our screen-based measures of expected satiety and ideal portion size were both significantly related to intake (p <.05). By contrast, measures of liking were relatively poor predictors (p > .05). In addition, consistent with previous studies, the majority (90%) of participants engaged in plate cleaning. Of these, 29.6% consumed more when prompted by the experimenter. Together, these findings further validate the use of screen-based measures to explore determinants of portion-size selection and energy intake in humans. (C) 2012 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)933-938
Number of pages6
JournalAppetite
Volume59
Issue number3
Early online date16 Sep 2012
DOIs
Publication statusPublished - Dec 2012

Bibliographical note

Copyright © 2012 Elsevier Ltd. All rights reserved.

Structured keywords

  • Brain and Behaviour
  • Nutrition and Behaviour

Keywords

  • Portion size
  • Expected satiation
  • Expected satiety
  • Food intake
  • Liking
  • Reward
  • SENSORY-SPECIFIC SATIETY
  • CHANGES EXPECTATIONS
  • DIETARY RESTRAINT
  • EATING BEHAVIOR
  • HUMANS
  • PALATABILITY
  • MEAL
  • APPETITE
  • FULLNESS
  • HUNGER

Projects

Cite this