Contrast Reversal of the Iris and Sclera Increases the Face Sensitive N170

Overview

Journal Front Hum Neurosci

Specialty Neurology

Date 2022 Sep 26

PMID 36158625

Authors

Kelly J Jantzen

Nicole McNamara

Adam Harris

Anna Schubert

Michael Brooks

Matthew Seifert

Lawrence A Symons

Affiliations

Soon will be listed here.

Abstract

Previous research has demonstrated that reversing the contrast of the eye region, which includes the eyebrows, affects the N170 ERP. To selectively assess the impact of just the eyes, the present study evaluated the N170 in response to reversing contrast polarity of just the iris and sclera in upright and inverted face stimuli. Contrast reversal of the eyes increased the amplitude of the N170 for upright faces, but not for inverted faces, suggesting that the contrast of eyes is an important contributor to the N170 ERP.

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