Effects of low dose tryptophan depletion on emotional processing in dieters

被引:5
|
作者
Pringle, A. [1 ]
Cooper, M. J. [2 ]
Browning, M. [1 ]
Harmer, C. J. [1 ]
机构
[1] Univ Oxford, Dept Psychiat, Oxford OX1 2JD, England
[2] Univ Oxford, Oxford Doctoral Course Clin Psychol, Oxford OX1 2JD, England
基金
英国医学研究理事会;
关键词
Serotonin; Emotional processing; Tryptophan depletion; Attention; Eating disorders; EATING-DISORDERS; ANOREXIA-NERVOSA; ATTENTIONAL BIASES; HEALTHY-VOLUNTEERS; BULIMIA-NERVOSA; DEPRESSION; SYMPTOMS; RELAPSE; THREAT; CUES;
D O I
10.1016/j.eatbeh.2011.12.005
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
Biased processing of ED-relevant stimuli (eg Fairburn, Shafran, & Cooper, 1999) and 5-HT function (Kaye, Fudge, & Paulus, 2009) are implicated in vulnerability to and the maintenance of eating disorders (EDs), but it is not known if these findings are connected: Could manipulating 5-HT function affect the processing of ED-relevant stimuli? To address this question we assessed emotional processing in female dieters (T + n = 12, T - n = 14) following acute low dose tryptophan depletion. AID increased interference in the masked condition of the emotional Stroop to all negative emotional stimuli, in the absence of any other differences in emotional processing. These results suggest that ATD affects the processing of some negative (including ED-relevant) stimuli, and that reduced 5-HT function may be involved in some aspects of psychological vulnerability to EDs. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:154 / 157
页数:4
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