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Abstract:
Judgements on faces, concerning identity or emotional
expression have been related to possible right-hemisphere
specialisation for face processing. We sought to determine whether
a similar specialisation also exists for gaze perception. In two
experiments normal adult subjects made a forced judgement of gaze
direction. Unilateral or bilateral eye-stimuli were presented, and
bilateral eyes could gaze in the same or different directions. For
unilateral stimuli, gaze judgments were more accurate for an eye
seen in the left visual field. For bilateral stimuli looking in
different directions, the left visual field (LVF) eye dominated.
Since only the eye region was visible, our results cannot be due to
a LVF bias in processing the entire face context, but instead
suggest lateralised specialisation in gaze perception in
particular.
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