Document Detail


Developmental changes in the functional brain responses of adolescents to images of high and low-calorie foods.
MedLine Citation:
PMID:  16284969     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined cerebral responses to visually presented food images in children and adolescents. Eight healthy normal-weight females (ages 9-15) underwent functional magnetic resonance imaging (fMRI) while viewing photographs of high- and low-calorie foods and dining utensils. In general, food images yielded significant activation within the inferior orbitofrontal cortex, hippocampus, and fusiform gyri. High calorie food images activated the left hippocampus and subgenual cingulate, and age correlated positively with activity within the orbitofrontal cortex but negatively with activity within the anterior cingulate gyrus. Low-calorie foods activated the fusiform gyrus and demonstrated age-related increases in the left superior temporal gyrus and anterior cingulate. Utensils activated the fusiform gyrus and showed age-related increases in the prefrontal cortex. Data were also compared statistically to a sample of adults exposed to the same stimulus conditions. Findings support a developmental model of adolescent maturation whereby age-related changes in cerebral functioning develop from lower-order sensory processing toward higher-order processing of stimuli via prefrontal cortical systems involved in reward anticipation, self-monitoring, and behavioral inhibition.
Authors:
William D S Killgore; Deborah A Yurgelun-Todd
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Developmental psychobiology     Volume:  47     ISSN:  0012-1630     ISO Abbreviation:  Dev Psychobiol     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-11-21     Completed Date:  2006-03-07     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0164074     Medline TA:  Dev Psychobiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  377-97     Citation Subset:  IM    
Copyright Information:
Copyright 2005 Wiley Periodicals, Inc.
Affiliation:
Cognitive Neuroimaging Laboratory, McLean Hospital/Harvard Medical School, Belmont, Massachusetts, USA.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Age Factors
Brain / physiology*
Child
Cooking and Eating Utensils
Feeding Behavior / physiology*
Female
Food
Food Preferences / physiology*
Humans
Limbic System / physiology*
Magnetic Resonance Imaging
Pattern Recognition, Visual / physiology*
Photic Stimulation
Grant Support
ID/Acronym/Agency:
1R03 HD41542-01/HD/NICHD NIH HHS

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


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