Department of Psychological & Brain Sciences, Center for Cognitive Neuroscience, Dartmouth College, Hanover, NH 03755, USA.
Soc Cogn Affect Neurosci. 2006 Dec;1(3):271-4. doi: 10.1093/scan/nsl040.
Facial expressions of emotion represent a stimulus set widely used to assess a broad range of psychological processes. However, a consideration of systematic differences between expression categories, other than differences relating to characteristics of the expressions themselves, has remained largely unaddressed. By collecting experience rankings in a large sample of undergraduates, we observed that the amount of reported experience individuals have had with different facial expressions of emotion systematically differed between all expression categories. These findings shed light on the potential for identifying confounds inherent to comparing some stimulus categories and, in this case, may aid in the interpretation of observed between-expression category findings.
情绪的面部表情代表了一个广泛用于评估广泛心理过程的刺激集。然而，除了与表情本身特征有关的差异外，对于表情类别之间的系统差异的考虑在很大程度上仍未得到解决。通过在大量本科生中收集经验排名，我们观察到，个体经历过的不同情绪面部表情的报告经验量在所有表情类别之间系统地存在差异。这些发现揭示了识别某些刺激类别中固有混淆因素的潜力，并且在这种情况下，可能有助于解释观察到的表情类别之间的差异。
