Journal
DEVELOPMENTAL PSYCHOBIOLOGY
Volume 47, Issue 4, Pages 377-397Publisher
WILEY
DOI: 10.1002/dev.20099
Keywords
development; adolescent; adolescence; FMRI; neuroimaging; food; eating; feeding; amygdala; medial prefrontal cortex; dorsolateral prefrontal cortex; limbic system
Categories
Funding
- NICHD NIH HHS [1R03 HD41542-01] Funding Source: Medline
Ask authors/readers for more resources
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. hi 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 front lower-order sensory processing toward higher-order processing of stimuli via prefrontal cortical systems involved in reward anticipation, self-monitoring, and behavioral inhibition. (C) 2005 Wiley Periodicals, Inc.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available