Time course of attentional bias for threat information in non-clinical anxiety
Time course of attentional bias for threat information in non-clinical anxiety
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DOI：
10.1016/s0005-7967(96)00109-x
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发表时间：
1997-04-01
影响因子：
4.1
通讯作者：
Painter, M
中科院分区：
文献类型：
--
作者：
Mogg, K;Bradley, BP;Painter, M
一个修改后的版本的探针检测任务被用来调查的影响，刺激暴露持续时间的威胁刺激在非临床样本的受试者的注意力偏差。操纵刺激持续时间，以检查不同的组件的焦虑相关的注意力偏差，即初始定向与维护的注意力威胁。单词对在计算机屏幕上显示100、500或1500毫秒，并且在每对显示终止后立即在单词之一的位置出现点探针。更高水平的状态焦虑与更快的反应相关，而不是中性词（即对威胁的注意力警惕）。这种偏见并没有显着影响的曝光时间的字刺激。因此，在非临床焦虑中，对威胁的注意偏差在这个范围（100-1500毫秒）内似乎没有显著变化;建议在临床焦虑中进一步研究注意偏差的时间过程。(C)1997 Elsevier Science Ltd.
A modified version of the probe detection task was used to investigate the effect of stimulus exposure duration on attentional bias for threat stimuli in a non-clinical sample of subjects. Stimulus duration was manipulated in order to examine different components of the anxiety-related attentional bias, i.e. initial orienting versus maintenance of attention to threat. Word pairs were presented on a computer screen for 100, 500 or 1500 msec, and immediately after the termination of the display of each pair, a dot probe appeared in the position of one of the words. Higher levels of state anxiety were associated with faster response latencies for probes that replaced threat words, rather than neutral words (i.e. attentional vigilance for threat). This bias was not significantly affected by the exposure duration of the word stimuli. Thus, the attentional bias for threat does not appear to vary significantly over this range (100-1500 msec) in non-clinical anxiety; it is recommended that the time course of the attentional bias be investigated further in clinical anxiety. (C) 1997 Elsevier Science Ltd.