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http://hdl.handle.net/10071/9721
acessibilidade
Title: To read or not to read: a neurophysiological study
Authors: Mares, I.
Custódio, P.
Fonseca, J.
Bentes, C.
Guerreiro, M.
Guimarães, N.
Martins, I. P.
Keywords: Alexia
Letter-by-letter reading
Posterior cortical atrophy
ERP
Issue Date: 2015
Publisher: Taylor and Francis
Abstract: Pure alexia (PA) has been associated with visual deficits or a failure to activate the visual word form area (VWFA). We report a patient with pure alexia due to posterior cortical atrophy, in whom event-related potentials revealed a delay in the P100 component and an absent N170 compared with controls. Furthermore, there was a tendency for a larger delay in P100 latencies associated with incorrectly read words. This suggests that some cases of PA might result from deficits in visual perception, signaled by the P100 early potential which could lead to an inability to consistently activate the VWFA, marked by the absent N170.
Peer reviewed: Sim
URI: https://ciencia.iscte-iul.pt/public/pub/id/21776
http://hdl.handle.net/10071/9721
ISSN: 1355-4794
Publisher version: The definitive version is available at: http://dx.doi.org/10.1080/13554794.2015.1013137
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica

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