Shafran Roz, Lee Michelle, Cooper Zafra, Palmer Robert L, Fairburn Christopher G
Department of Psychiatry, Oxford University, Oxford, United Kingdom.
Int J Eat Disord. 2008 May;41(4):348-54. doi: 10.1002/eat.20500.
The aims of these studies were (a) to investigate the relationship between attentional bias and eating disorders and (b) examine the impact of psychological treatment on attentional bias.
The first study compared performance on a pictorial dot probe of 82 female patients with clinical eating disorders and 44 healthy female controls. The second study compared the performance of 31 patients with eating disorder on the same task before and after receiving 20 weeks of standardized cognitive behavior therapy. Twenty-four patients with eating disorder served as wait-list controls
With the exception of neutral shape stimuli, attentional biases for eating, shape, and weight stimuli were greater in the patient sample than the healthy controls. The second study found that attentional biases significantly reduced after active treatment only.
Attentional biases may be an expression of the eating disorder. The question of whether such biases warrant specific intervention requires further investigation.
这些研究的目的是（a）调查注意偏向与饮食失调之间的关系，以及（b）检验心理治疗对注意偏向的影响。
第一项研究比较了82名患有临床饮食失调的女性患者和44名健康女性对照在图形点探测任务中的表现。第二项研究比较了31名饮食失调患者在接受20周标准化认知行为治疗前后在同一任务中的表现。24名饮食失调患者作为候补对照。
除中性形状刺激外，患者样本中对饮食、形状和体重刺激的注意偏向比健康对照更大。第二项研究发现，仅在积极治疗后注意偏向显著降低。
注意偏向可能是饮食失调的一种表现。这种偏向是否需要特定干预的问题需要进一步研究。
