Is neural adaptation of the N170 category-specific? Effects of adaptor stimulus duration and interstimulus interval

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
Daniel FeuerriegelHannah A D Keage

Abstract

Neural adaptation paradigms have been used in the electrophysiological and neuroimaging literature to characterise neural populations underlying face and object perception. It was recently reported by Nemrodov and Itier (2012) that adaptation of the N170 event-related potential (ERP) component is not stimulus category-specific over rapid adapting stimulus durations (S1 durations) and interstimulus intervals (ISIs). We therefore tested the category-specificity of adaptation over a range of S1 durations and ISIs. Faces and chairs were presented at S1 (for 200, 500 or 1000 ms) and S2 (for 200 ms), over a variable ISI (200 or 500 ms). Mean amplitudes of the P1, N170 and P2 visual ERP components were measured following S1 and S2 stimuli. Faces at S1 led to the smallest (i.e., most adapted) N170 amplitudes to both faces and chairs at S2, more than chairs at S1. N170s at S2 were smallest after a 500ms S1 duration; but N170 amplitude did not vary over ISI. Effects were also seen for the two surrounding positive components, the P1 and P2. Presenting faces at S1 led to enhanced P1 amplitudes evoked by S2 chair stimuli. The P2 showed the smallest amplitudes following the shorter 200 ms ISI. These results indicate that adaptation of the N1...Continue Reading

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Citations

Dec 18, 2015·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Stefan R Schweinberger, Markus F Neumann
May 26, 2016·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Gyula Kovács, Stefan R Schweinberger
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Nov 9, 2018·Frontiers in Psychology·Chenglin LiXiaohua Cao
Apr 3, 2020·Brain Topography·Carmel R Auerbach-AschLeon Y Deouell
Jan 11, 2020·Frontiers in Neuroscience·Catarina AmadoGyula Kovács

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