Rumination and attention in major depression
Rumination and attention in major depression
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DOI：
10.1016/j.brat.2007.07.002
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发表时间：
2007-11-01
影响因子：
4.1
通讯作者：
Mathews, Andrew
中科院分区：
文献类型：
--
作者：
Donaldson, Catherine;Lam, Dominic;Mathews, Andrew
直到最近，人们还认为抑郁症中不存在对负面信息的注意偏差。然而，使用后意识暴露持续时间的研究却产生了矛盾的结果。常见注意力任务的局限性、刺激材料的适用性以及刺激持续时间的差异可能导致了这些不一致。我们的目的是解决其中许多问题，并检查重度抑郁症在两个后意识暴露时间的注意力反应。我们还研究了沉思和分心在增加和减少负面信息的注意力偏差方面可能发挥的作用。我们使用完全对照的实验设计来测试诱导性沉思和特质沉思和分心对重度抑郁症患者和健康对照者注意力的影响。使用点探针任务评估注意力。研究结果表明，抑郁症患者只有在较长的意识后接触时间中才会对负面信息产生注意偏差。此外，虽然这种偏见不受诱导或特质干扰的影响，但它与特质沉思有关。总体而言，结果表明抑郁症与对负面信息的策略性注意偏差有关，并且这种偏差在习惯性沉思的个体中更为强烈。 (C) 2007 Elsevier Ltd. 保留所有权利。
Up until recently, it had been assumed that attentional biases for negative information do not exist in depression. However studies using post-conscious exposure durations have produced contradictory results. The limitations of common attentional tasks, suitability of stimulus materials and differences in stimulus duration times may have contributed to these inconsistencies. We aimed to address many of these issues and examine attentional responses in major depression at two post-conscious exposure times. We also investigated possible roles for rumination and distraction in increasing and lessening, attentional biases for negative information. We used a fully controlled experimental design to test the effects of both induced and trait rumination and distraction on attention in patients with major depression and healthy controls. Attention was assessed using the dot-probe task. The findings revealed an attentional bias for negative information in depressed patients only at the longer post-conscious exposure duration. Furthermore although this bias was not influenced by either induced or trait distraction, it was related to trait rumination. Overall, the results showed that depression is associated with a strategic attentional bias towards negative information and that this bias is stronger in individuals who habitually ruminate. (C) 2007 Elsevier Ltd. All rights reserved.