Publication year
2012Source
British Journal of Nutrition, 107, 4, (2012), pp. 588-595ISSN
Publication type
Article / Letter to editor
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Organization
SW OZ BSI OGG
Journal title
British Journal of Nutrition
Volume
vol. 107
Issue
iss. 4
Page start
p. 588
Page end
p. 595
Subject
Developmental PsychopathologyAbstract
Portion size and the intake of others have been found to influence people's food intake. No study, however, has tested the potential influences of both types of situational norms on intake during the same eating occasion. We experimentally tested the effects of manipulating portion size and the intake of others on young women's meal intake during a 20 min eating opportunity. An experimental design with a three (confederate's intake: small, standard, large) by two (portion size: small, standard) between-participants design was used. A total of eighty-five young women participated. Portion size and the confederate's intake both influenced young women's intake. Participants consumed more when offered a larger portion than when offered a smaller portion, and they also ate more when their eating companion ate more. The present results indicate that the effects of portion size and the intake of others were independent but additive. Thus, both types of situational norms might independently guide an individual's intake during a single eating occasion.
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- Academic publications [238441]
- Faculty of Social Sciences [29483]
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