At the group level, women consistently perform better in face memory tasks than men and also show earlier and larger N170 components of event-related brain potentials (ERP), considered to indicate perceptual structural encoding of faces. Here we investigated sex differences in the relationship between the N170 and face memory performance in 152 men and 141 women at group mean and individual differences levels. ERPs and performance were measured in separate tasks, avoiding statistical dependency between the two. We confirmed previous findings about superior face memory in women and a—sex-independent—negative relationship between N170 latency and face memory. However, whereas in men, better face memory was related to larger N170 components, face memory in women was unrelated with the amplitude or latency of the N170. These data provide solid evidence that individual differences in face memory within men are at least partially related to more intense structural face encoding.

中文翻译：

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事件相关电位中面部记忆与N170组件之间的性别特定关系。

在小组一级，女性在面部记忆任务上的表现始终优于男性，并且显示出与事件相关的脑电势（ERP）的N170分量更大，更早，这被认为指示人脸的感知结构编码。在这里，我们调查了152名男性和141名女性在N170和面部记忆表现之间的关系中的性别差异，这些差异在群体均值和个人差异水平上。ERP和绩效是在单独的任务中进行衡量的，避免了两者之间的统计依赖性。我们证实了先前关于女性面部表情记忆力和N170潜伏期与面部表情记忆力之间呈负性关系的发现。但是，在男性中，更好的面部记忆与更大的N170成分有关，而在女性中，面部记忆与N170的振幅或潜伏期无关。