Department of Experimental Psychology, University of Oxford, UK.
Br J Health Psychol. 2010 Nov;15(Pt 4):779-96. doi: 10.1348/135910709X480346. Epub 2010 Jan 22.
This study tested whether (1) chronic fatigue syndrome (CFS) individuals have a bias in the initial orientation of attention to illness-related information, which is enhanced by rumination. (2) CFS individuals have an illness interpretation bias (IB) in their early automatic processing of ambiguous information. (3) CFS individuals experience a greater degree of mood fluctuation following rumination and distraction inductions.
Thirty-three CFS participants who had received a medical practitioner's diagnosis of CFS were compared to 33 healthy matched controls on an exogenous cueing task and a lexical decision task.
All participants underwent either a rumination or distraction induction. They then completed an exogenous cueing task to assess bias to illness and social threat compared with neutral stimuli, as well as a lexical decision task to assess their interpretation of ambiguous words having illness, social threat, or neutral interpretations.
Reaction time data revealed that CFS individuals did not have an attentional bias (AB) in the initial orientation of attention to illness-related material. Nor was there an IB towards illness in CFS individual's automatic response to ambiguous information. However, as hypothesized, CFS individuals showed a greater degree of mood fluctuation following the rumination/distraction induction.
Rumination and distraction lead to greater mood volatility in CFS individuals than in controls, but not to attentional nor interpretation biases in the early automatic stages of information processing in CFS individuals.
本研究旨在检验慢性疲劳综合征（CFS）患者是否存在对与疾病相关信息的初始注意偏向，这种偏向会因反刍而增强（1）；CFS 患者是否存在对模糊信息的早期自动加工的疾病解释偏差（IB）（2）；CFS 患者在反刍和分心诱导后情绪波动程度是否更大（3）。
33 名经医生诊断为 CFS 的 CFS 患者与 33 名健康匹配对照者进行了外源性线索任务和词汇判断任务的比较。
所有参与者都进行了反刍或分心诱导。然后，他们完成了外源性线索任务，以评估与中性刺激相比对疾病和社会威胁的偏向，以及词汇判断任务，以评估他们对具有疾病、社会威胁或中性解释的模糊单词的解释。
反应时间数据显示，CFS 患者对与疾病相关材料的初始注意定向没有注意偏向（AB）。在 CFS 个体对模糊信息的自动反应中，也没有 IB 倾向于疾病。然而，正如假设的那样，CFS 个体在反刍/分心诱导后表现出更大程度的情绪波动。
与对照组相比，反刍和分心会导致 CFS 个体情绪波动更大，但不会导致 CFS 个体在信息处理的早期自动阶段出现注意力或解释偏向。
