Abstract

Background: The P300 is an event-related potential occurring at about 300 ms post-stimulus. The P300 covaries in amplitude with the perceived significance of the stimulus as well as with its emotional valence. Alexithymia refers to severe reductions in the cognitive as well as affective components of the emotional experience. For these reasons the study into the P300 in alexithymic subjects is interesting. Two such studies have been published, one claiming results indicating lower P300 in alexithymics, one claiming the opposite result.

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