面孔识别过程中种族信息的提取:神经机制与认知特点  

Racial information extraction in the process of face recognition:Neural mechanism and cognitive features

作　　者：岳亚奇 麻超[2,3] YUE Yaqi;MA Chao(College of psychology,Northeast Normal University,Changchun 130024,China)

机构地区：[1]东北师范大学心理学院(吉林长春),130024 [2]石河子大学师范学院 [3]石河子大学心理应用研究中心

出　　处：《中国健康心理学杂志》2021年第11期1612-1616,共5页China Journal of Health Psychology

摘　　要：目的:调查面孔识别中的异族效应,检测人脸加工过程中种族信息的感知方式。方法:本研究提供了一种新的实验范式和方法,专门检测种族识别的神经机制。平均多张相同种族的面孔以突显面孔的种族信息,改变这些"平均面孔"的变形程度来操纵被试对种族信息的判断,然后采用多体素模式分析的方法检测种族认知的完整神经过程。结果:约在300ms之后的面孔识别晚期阶段,大脑开始对面孔的种族信息进行解码;持续至约370ms之后,形成稳定的种族表征。结论:个体对种族信息的解码过程发生在面孔识别过程的晚期阶段。Objective:To investigate the other-race effect in face recognition and detect the perception of race information during face processing.Methods:This study provided a new experimental paradigm and method to specifically detect the neural mechanism of race recognition.Multiple faces of the same race were averaged to highlight the race information of the face,change the degree of deformation of these"average faces"to manipulate the participants’judgment of race information,and then multivariate pattern analysis was used to detect the complete neural process of race cognition.Results:After about 300 ms,the brain began to decode the racial information of the face;after about 370 ms,a stable racial representation was formed.Conclusion:The process of individual decoding of race information occurs in the late stage of the cognitive process.

关 键 词：面孔处理 种族 异族效应 多体素模式分析 

分 类 号：R395.9[哲学宗教—心理学]