Mitchell Jason P, Ames Daniel L, Jenkins Adrianna C, Banaji Mahzarin R
Department of Psychology, Harvard University, Cambridge, MA 02138, USA.
J Cogn Neurosci. 2009 Mar;21(3):594-604. doi: 10.1162/jocn.2009.21033.
Recent research has focused on the disparate mechanisms that support the human ability to "mentalize" about the thoughts and feelings of others. One such process may rely on precompiled, semantic beliefs about the characteristics common to members of a social group, that is, on stereotypes; for example, judging that a woman may be more likely than a man to have certain interests or opinions. In the current study, we identified a pattern of neural activity associated with the use of stereotypes to judge another person's psychological characteristics. During fMRI scanning, participants mentalized about the likely responses of a female and male target to a series of questions, some of which were related to gender stereotypes (e.g., "enjoys shopping for new clothes"). Trials on which participants applied a stereotype were segregated from those on which participants avoided stereotype use. The BOLD response in an extensive region of the right frontal cortex differentiated stereotype-applied from -unapplied trials. Moreover, this neural difference was correlated with a behavioral index of gender associations-the Implicit Association Test-administered after scanning. Results suggest that stereotype application may draw on cognitive processes that more generally subserve semantic knowledge about categories.
近期的研究聚焦于支持人类对他人的思想和情感进行“心理化”的不同机制。其中一个过程可能依赖于预先编译的、关于社会群体成员共同特征的语义信念,即刻板印象;例如,判断女性可能比男性更有可能有某些兴趣或观点。在当前的研究中,我们识别出了一种与使用刻板印象来判断他人心理特征相关的神经活动模式。在功能磁共振成像扫描期间,参与者对一名女性和一名男性目标对一系列问题的可能反应进行心理化思考,其中一些问题与性别刻板印象有关(例如,“喜欢购买新衣服”)。将参与者应用刻板印象的试验与避免使用刻板印象的试验区分开来。右侧额叶皮质广泛区域的血氧水平依赖反应区分了应用刻板印象与未应用刻板印象的试验。此外,这种神经差异与扫描后进行的性别关联行为指标——内隐联想测验相关。结果表明,刻板印象的应用可能利用了更普遍地服务于关于类别语义知识的认知过程。