Age-related delay in information accrual for faces: Evidence from a parametric, single-trial EEG approach |
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| Authors: | Guillaume A Rousselet Jesse S Husk Cyril R Pernet Carl M Gaspar Patrick J Bennett Allison B Sekuler |
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| Institution: | (1) Centre for Cognitive Neuroimaging (CCNi) and Department of Psychology, University of Glasgow, Glasgow, UK;(2) Department of Psychology, Behaviour & Neuroscience, McMaster University, Hamilton, ON, Canada;(3) SFC Brain Imaging Research Centre, Division of Clinical Neurosciences, Western General Hospital, Edinburgh, UK |
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| Abstract: | Background In this study, we quantified age-related changes in the time-course of face processing by means of an innovative single-trial
ERP approach. Unlike analyses used in previous studies, our approach does not rely on peak measurements and can provide a
more sensitive measure of processing delays. Young and old adults (mean ages 22 and 70 years) performed a non-speeded discrimination
task between two faces. The phase spectrum of these faces was manipulated parametrically to create pictures that ranged between
pure noise (0% phase information) and the undistorted signal (100% phase information), with five intermediate steps. |
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