Document Detail


Subliminal fear priming potentiates negative facial reactions to food pictures in women with anorexia nervosa.
MedLine Citation:
PMID:  19619383     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: To investigate hedonic reactivity and the influence of unconscious emotional processes on the low sensitivity to positive reinforcement of food in anorexia nervosa (AN). METHOD: AN and healthy women were exposed to palatable food pictures just after a subliminal exposure to facial expressions (happy, disgust, fear and neutral faces), either while fasting or after a standardized meal (hunger versus satiety). Both implicit [facial electromyographic (EMG) activity from zygomatic and corrugator muscles, skin conductance, heart rate, and videotaped facial behavior] and explicit (self-reported pleasure and desire) measures of affective processes were recorded. RESULTS: In contrast to healthy women, the AN patients did not display objective and subjective indices of pleasure to food pictures when they were in the hunger states. Pleasure to food cues (liking) was more affected than the desire to eat (wanting) in AN patients. Subliminal 'fear faces' increased corrugator muscle reactivity to food stimuli in fasting AN patients, as compared to controls. CONCLUSIONS: The results suggest that unconscious fear cues increase the negative appraisal of alimentary stimuli in AN patients and thus contribute to decreased energy intake.
Authors:
R Soussignan; T Jiang; D Rigaud; J P Royet; B Schaal
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-07-21
Journal Detail:
Title:  Psychological medicine     Volume:  40     ISSN:  1469-8978     ISO Abbreviation:  Psychol Med     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-01-29     Completed Date:  2010-06-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1254142     Medline TA:  Psychol Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  503-14     Citation Subset:  IM    
Affiliation:
Centre Europ?en des Sciences du GoUt, CNRS (UMR 5170), Universit? de Bourgogne, Dijon, France. soussignan@cesg.cnrs.fr
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MeSH Terms
Descriptor/Qualifier:
Adult
Affect
Analysis of Variance
Anorexia Nervosa / psychology*
Cues
Electromyography / methods,  statistics & numerical data
Face
Facial Expression*
Fear / psychology*
Female
Food*
Galvanic Skin Response
Heart Rate
Humans
Hunger
Motivation
Muscle, Skeletal
Photic Stimulation / methods*
Pleasure
Recognition (Psychology)
Reinforcement (Psychology)
Satiation
Subliminal Stimulation*
Task Performance and Analysis
Unconscious (Psychology)
Visual Perception

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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