Dynamics of phonological-phonetic encoding in word production: Evidence from diverging ERPs between stroke patients and controls.

Details

Serval ID
serval:BIB_15550A1B46EE
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Dynamics of phonological-phonetic encoding in word production: Evidence from diverging ERPs between stroke patients and controls.
Journal
Brain and Language
Author(s)
Laganaro M., Python G., Toepel U.
ISSN
1090-2155 (Electronic)
ISSN-L
0093-934X
Publication state
Published
Issued date
2013
Peer-reviewed
Oui
Volume
126
Number
2
Pages
123-132
Language
english
Notes
Publication types: Journal Article Publication Status: ppublish
Abstract
While the dynamics of lexical-semantic and lexical-phonological encoding in word production have been investigated in several event-related potential (ERP) studies, the estimated time course of phonological-phonetic encoding is the result of rather indirect evidence. We investigated the dynamics of phonological-phonetic encoding combining ERP analyses covering the entire encoding process in picture naming and word reading tasks by comparing ERP modulations in eight brain-damaged speakers presenting impaired phonological-phonetic encoding relative to 16 healthy controls. ERPs diverged between groups in terms of local waveform amplitude and global topography at ∼400ms after stimulus onset in the picture naming task and at ∼320-350ms in word reading and sustained until 100ms before articulation onset. These divergences appeared in later time windows than those found in patients with underlying lexical-semantic and lexical-phonological impairment in previous studies, providing evidence that phonological-phonetic encoding is engaged around 400ms in picture naming and around 330ms in word reading.
Pubmed
Web of science
Create date
08/09/2013 9:43
Last modification date
20/08/2019 12:44
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