Early Left Parietal Activity Elicited by Direct Gaze: A High-Density EEG Study.

ABSTRACT: Gaze is one of the most important cues for human communication and social interaction. In particular, gaze contact is the most primary form of social contact and it is thought to capture attention. A very early-differentiated brain response to direct versus averted gaze has been hypothesized. Here, we used high-density electroencephalography to test this hypothesis. Topographical analysis allowed us to uncover a very early topographic modulation (40-80 ms) of event-related responses to faces with direct as compared to averted gaze. This modulation was obtained only in the condition where intact broadband faces-as opposed to high-pass or low-pas filtered faces-were presented. Source estimation indicated that this early modulation involved the posterior parietal region, encompassing the left

SUBMITTER: Burra N 

PROVIDER: S-EPMC5120811 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature