Contrast reversal of the iris and sclera increases the face sensitive N170

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 uprig...

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Published inFrontiers in human neuroscience Vol. 16; p. 987217
Main Authors Jantzen, Kelly J., McNamara, Nicole, Harris, Adam, Schubert, Anna, Brooks, Michael, Seifert, Matthew, Symons, Lawrence A.
Format Journal Article
LanguageEnglish
Published Lausanne Frontiers Research Foundation 07.09.2022
Frontiers Media S.A
Subjects
contrast
eyes
face
inversion
Iris
N170
Neuroscience
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Summary: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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Edited by: Joshua M. Carlson, Northern Michigan University, United States
This article was submitted to Cognitive Neuroscience, a section of the journal Frontiers in Human Neuroscience
Reviewed by: Roxane J. Itier, University of Waterloo, Canada; Robert D. Torrence, Saint Xavier University, United States
ISSN:1662-5161
1662-5161
DOI:10.3389/fnhum.2022.987217