Extraversion is accurately perceived after a 50-ms exposure to a face

Twenty-four perceivers saw portraits of unacquainted persons for either 150 ms, 100 ms, or 50 ms, and rated their personality on adjective scales. Moreover, stimulus persons described themselves on these scales and the NEO Five-Factor Inventory. Consensus among perceivers and self-other agreement were not systematically related to exposure time, but self-other agreement differed strongly between traits, being highest for extraversion. Even ratings of extraversion by single perceivers were related to the stimulus persons’ self-reports. Particularly strong were correlations between perceived extraversion and self-reports on items measuring the extraversion facets excitement seeking and positive emotions. Self-other agreement for extraversion was mostly mediated by cheerfulness of facial expressions that was related to self-reports of extraversion but not of the other personality traits.