癌症患者对情绪信息的注意偏向特点

Attentional Bias Towards Emotional Information in Patients with Cancer

目的:研究癌症患者对情绪信息的注意偏向及其加工机制。方法:通过点探测任务探究不同类型的刺激图片和呈现时间对癌症患者组和健康对照组被试注意偏向的影响。结果:①患者组对负性情绪有注意偏向,对正性情绪有注意逃避。②刺激呈现500ms时,患者组对负性情绪有注意偏向,对正性情绪有注意逃避,且差异显著;呈现时间为1250ms时,对负性情绪有注意偏向,对正性情绪有注意逃避,但两者无显著差异。③癌症患者的注意偏向存在性别差异,男性患者比女性患者对负性情绪信息的注意偏向更加明显。结论:癌症患者对负性情绪存在注意偏向,且主要存在于认知加工的初始阶段;男性患者比女性患者对负性情绪信息的注意偏向水平更高。

Objective： To investigate the feature and processing mechanism of the attentional bias to emotional informa- tion in cancer patients. Methods： Cancer patients and healthy individuals were tested with a dot-probe task to examine the impact of the different emotional pictures and stimulus presenting time on attentional bias. Results： （1）Attention biases to- ward negative emotional cues and away from positive emotional cues existed in cancer patients. （2）When the, response time on negative emotion was significantly shorter and that on the positive emotion picture was longer in cancer patients than nor- mal controls. However, no differences of response time were found while stimulus were presented for 1250ms. （3）In cancer patients, compared to the female patients, male patients showed longer response time on negative emotion pictures. Conclu- sion： Attentional bias to negative emotion exists in cancer patients that occurs at the early stage of cognitive processing, and the male patients may have more severe attentional biases to the negative emotion than the female.