大学生情绪性注意瞬脱现象的研究——以承德市医学生为例
A Study on the Phenomenon of Emotional Attention Blink in College Students—A Case Study of Medical Students in Chengde City

目的：为了探究医学院大学生的注意偏向的机制，本课题从图片情绪类型与不同目标刺激时间间隔的视角，考察该群体不同情绪图片类型的主效应、不同目标刺激时间间隔的主效应、及二者的交互作用，本研究结论对于补充国内对于大学生群体的情绪性注意瞬脱现象的相关研究具有一定意义，也有助于提高大学生对注意特性的正确认识。方法：研究采用情绪性注意瞬脱范式，分别比较在目标刺激T1、T2时间间隔为200 ms、600 ms的情况下，情绪图片刺激为负性、中性、正性时的行为数据(T2正确率)。结果：1) 在目标刺激的情绪类型维度，当T1为正性图片时，被试对于T2的识别正确率最低，当T1为负性图片时，被试对于T2的识别正确率高。在目标刺激时间间隔的维度，当目标刺激时间间隔为200 ms时，被试在三种情绪类型影响下的识别正确率均低于600 ms时的识别正确率。2) 目标刺激时间间隔与情绪图片类型均存在显著的主效应，并且二者的交互作用显著。结论：1) 实验证明可以通过改变目标刺激时间间隔和刺激情绪类型影响医学院大学生的注意瞬脱现象，在情绪类型维度，大学生群体对正性情绪图片表现出更为显著的注意瞬脱现象；在目标刺激时间间隔维度，大学生群体对间隔200 ms表现出更为严重的注意瞬脱现象，且二者的交互作用显著。2) 相较负性情绪刺激，类型相同或相似的情绪刺激更容易引起大学生群体的平行加工阶段对于T1刺激加工的延长，因此延误对于T2刺激的加工，同时导致在200 ms时无法及时加工T2刺激，因此诱发了更为显著的注意瞬脱现象。
Objective: In order to explore the mechanism of attentional bias of medical college students, this topic examines the main effects of different emotional picture types of the group, the main effects of different target stimulation time intervals, and the relationship between the emotional types of pictures and the time intervals of different target stimuli and their interaction. The conclusions of this study have certain significance for supplementing domestic research on the emotional atten-tional blink phenomenon of college students, and also help to improve college students’ correct un-derstanding of attention characteristics. Methods: The study adopts the emotional attentional blink paradigm, and compares the behavioral data (T2 correct rate) when the emotional picture stimulus is negative, neutral, and positive when the target stimulus T1, T2 time interval is 200 ms, 600 ms, respectively. Results: 1) In the dimension of the emotion type of the target stimulus, when T1 is a positive picture, the subject has the lowest recognition accuracy rate for T2, and when T1 is a nega-tive picture, the subject has a high recognition accuracy rate for T2. In the dimension of the target stimulus time interval, when the target stimulus time interval is 200 ms, the recognition accuracy rate of the subjects under the influence of the three types of emotions is lower than the recognition accuracy rate at 600 ms. 2) Both the target stimulus time interval and the emotional picture type have significant main effects, and the interaction between the two is significant. Conclusion: 1) Ex-periments have proved that the attentional blink phenomenon of medical college students can be affected by changing the target stimulus time interval and the type of stimulus emotion. In the di-mension of emotion type, the group of university students shows more significant attentional blink phenomenon on positive emotion pictures; in the