Research Department of Cognitive Neuropsychiatry and Psychiatric Preventive Medicine, LWL University Hospital Bochum, Bochum, Germany.
Cogn Emot. 2013;27(3):558-66. doi: 10.1080/02699931.2012.726211. Epub 2012 Sep 24.
Anxiety is associated with an attentional bias towards angry faces. This effect is most pronounced when the face is presented in the left visual hemifield (LVHF), suggestive of a right hemisphere involvement. Little is known about the modulation of this attentional bias in situations of acute stress. In the current study 38 male participants were randomly allocated to a stress (Trier Social Stress Test; TSST) or a non-stressful control condition. Afterwards they performed an emotional dot-probe paradigm. Stress induced negative affect and a rise in salivary cortisol. Stress caused a pattern of functional asymmetry in the short stimulus onset asynchrony (SOA) interval, which was absent in the control group. Stressed participants responded faster to angry faces presented to the LVHF, but responded faster to happy faces presented to the right VHF. This could suggest that stress influences interhemispheric transfer of information that is relevant for emotion processing.
焦虑与对愤怒面孔的注意力偏向有关。当面孔出现在左视野（LVHF）时，这种效应最为明显，提示右半球参与。在急性应激情况下，这种注意力偏向的调节知之甚少。在当前的研究中，38 名男性参与者被随机分配到应激（特里尔社会应激测试；TSST）或非应激对照组。之后，他们进行了情绪点探测范式。应激引起负性情绪和唾液皮质醇升高。应激在短刺激起始时产生了功能不对称模式（SOA）间隔，而在对照组中则没有。应激组参与者对出现在 LVHF 的愤怒面孔的反应更快，但对出现在右 VHF 的快乐面孔的反应更快。这可能表明，应激会影响情绪处理相关的信息在大脑两半球之间的传递。
