University of New South Wales, School of Psychology, Mathews Building, Sydney NSW 2052, Australia.
J Anxiety Disord. 2012 Aug;26(6):656-64. doi: 10.1016/j.janxdis.2012.05.003. Epub 2012 May 22.
This study investigated whether trauma-related stimuli are preferentially processed at the expense of ongoing processing of neutral stimuli. Participants in the experimental group viewed negative pictures (Trauma) as an analogue trauma induction. Participants in the control group viewed visually similar neutral pictures (Neutral Match). In a Rapid Serial Visual Presentation (RSVP) task participants identified two target pictures. The first target (T1) was a neutral picture, whereas the second target (T2) was a familiar negative or neutral picture or a new neutral or negative picture. In line with hypotheses, only participants in the experimental group showed preferential processing of Trauma pictures. In the experimental group, negative T2 impaired the identification of (neutral) T1 if the T2 immediately followed the T1 in the RSVP stream. The results are consistent with a processing priority of trauma-related information, apparently at the expense of the ongoing processing of neutral information.
本研究旨在探究创伤相关刺激是否优先于中性刺激进行处理。实验组观看负性图片（创伤）作为模拟创伤诱导，对照组观看视觉相似的中性图片（中性匹配）。在快速序列视觉呈现（RSVP）任务中，参与者识别两个目标图片。第一个目标（T1）为中性图片，而第二个目标（T2）为熟悉的负性或中性图片或新的中性或负性图片。与假设一致，只有实验组表现出对创伤图片的优先处理。在实验组中，如果 T2 在 RSVP 流中紧随 T1 出现，则负性 T2 会损害对（中性）T1 的识别。结果与创伤相关信息的处理优先级一致，显然是以牺牲中性信息的持续处理为代价的。
