Neural risk factors that predict the future onset of binge eating or compensatory weight control behaviors: A prospective 4-year fMRI study.

IF 5.9 2区 医学 Q1 PSYCHIATRY
Eric Stice, Sonja Yokum, Jeff Gau, Heather Shaw
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引用次数: 0

Abstract

Background: We conducted a prospective study to advance knowledge of biological factors that predict the future onset of binge eating and compensatory weight control behaviors because few biological risk factors for eating pathology have been identified.

Methods: Adolescent girls free of binge eating or compensatory behaviors (N = 88; Mage = 14.5; [SD = 0.9]) completed functional magnetic resonance imaging tasks assessing individual differences in neural responsivity hypothesized to increase risk for onset of binge eating and compensatory behaviors, along with additional self-report measures, and were assessed over a 4-year follow-up.

Results: Elevated responsivity of regions implicated in attention and valuation (dorsal anterior cingulate cortex; ventromedial prefrontal cortex) to thin models and lower responsivity of a reward valuation region (caudate) to anticipated milkshake tastes (which correlated with feeling fat) predicted the future onset of binge eating or compensatory behaviors over 4-year follow-up. Parental history of binge eating and compensatory behaviors, emotionality, weight/shape overvaluation, feeling fat, and elevated BMI also predicted the future onset of binge eating or compensatory behaviors.

Conclusions: The evidence that elevated attentional bias for, and valuation of the thin ideal, in combination with lower valuation of high-calorie foods, predicted the future onset of eating-disordered behaviors are novel findings. The evidence that weight/shape overvaluation, feeling fat, elevated body mass, emotionality, and parental history of eating pathology predicted the future onset of eating-disordered behaviors extend past findings.

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来源期刊
Psychological Medicine
Psychological Medicine 医学-精神病学
CiteScore
11.30
自引率
4.30%
发文量
711
审稿时长
3-6 weeks
期刊介绍: Now in its fifth decade of publication, Psychological Medicine is a leading international journal in the fields of psychiatry, related aspects of psychology and basic sciences. From 2014, there are 16 issues a year, each featuring original articles reporting key research being undertaken worldwide, together with shorter editorials by distinguished scholars and an important book review section. The journal''s success is clearly demonstrated by a consistently high impact factor.
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