Article ID Journal Published Year Pages File Type
5041337 Brain and Language 2017 9 Pages PDF
Abstract

•We explored how visual expertise for print changes with age.•Behavioral and electrophysiological data (P100, N170, alpha power) were recorded.•Visual expertise for print is preserved with age.•A decrease in stimulus processing speed was observed as a function of age.

Progressive visual processing decline is a known factor in aging. The present study investigates the evolution of visual expertise for printed stimuli with aging. Fifty-five participants of increasing age (20-30, 40-50, 60-70, 75-85 years old) were recruited. Behavioral and EEG data were collected during a lexical decision task, in which words and symbol strings were presented. Analyses of EEG data focused mainly on three major points: visual expertise for print, automatization of the expertise and differences in attentional demand between the processing of words and symbols. Results indicated a preservation of visual expertise with age, with larger N170 amplitude for words than for symbols. Moreover, a decrease in stimulus processing speed was observed as a function of age. No difference in attentional demand as a function of stimulus was observed.

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