The late positive potential indexes a role for emotion during learning of trust from eye-gaze cues.
Gaze direction perception triggers rapid visuospatial orienting to the location observed by others. When this is congruent with the location of a target, reaction times are faster than when incongruent. Functional magnetic resonance imaging studies suggest that the non-joint attention induced by incongruent cues are experienced as more emotionally negative and this could relate to less favorable trust judgments of the faces when gaze-cues are contingent with identity. Here, we provide further support for these findings using time-resolved event-related potentials. In addition to replicating the effects of identity-contingent gaze-cues on reaction times and trust judgments, we discovered that the emotion-related late positive potential increased across blocks to incongruent compared to congruent faces before, during and after the gaze-cue, suggesting both learning and retrieval of emotion states associated with the face. We also discovered that the face-recognition-related N250 component appeared to localize to sources in anterior temporal areas. Our findings provide unique electrophysiological evidence for the role of emotion in learning trust from gaze-cues, suggesting that the retrieval of face evaluations during interaction may take around 1000 ms and that the N250 originates from anterior temporal face patches.
a School of Psychology , Bangor University , Gwynedd , UK.
Luis R
LR
Manssuer
a School of Psychology , Bangor University , Gwynedd , UK.
Mark V
MV
Roberts
a School of Psychology , Bangor University , Gwynedd , UK.|b Department of Psychology , University of York , York , UK.
Steven P
SP
Tipper
D001921:Brain / Q000502:physiology*; D003463:Cues; D004569:Electroencephalography; D004644:Emotions / Q000502:physiology*; D005071:Evoked Potentials; D005133:Eye Movements; D000066499:Facial Recognition / Q000502:physiology*; D005260:Female; D006801:Humans; D007600:Judgment / Q000502:physiology; D007858:Learning / Q000502:physiology*; D008297:Male; D009483:Neuropsychological Tests; D011930:Reaction Time; D035502:Trust / Q000523:psychology; D055815:Young Adult
EEG; Emotion; Faces; Gaze; N250; Trustworthiness