UNIGE document Scientific Article
previous document  unige:94877  next document
add to browser collection
Title

Neurophysiological Modulations of Non-Verbal and Verbal Dual-Tasks Interference during Word Planning

Authors
Published in PLOS ONE. 2016, vol. 11, no. 12, p. e0168358
Abstract Running a concurrent task while speaking clearly interferes with speech planning, but whether verbal vs. non-verbal tasks interfere with the same processes is virtually unknown. We investigated the neural dynamics of dual-task interference on word production using event-related potentials (ERPs) with either tones or syllables as concurrent stimuli. Participants produced words from pictures in three conditions: without distractors, while passively listening to distractors and during a distractor detection task. Production latencies increased for tasks with higher attentional demand and were longer for syllables relative to tones. ERP analyses revealed common modulations by dual-task for verbal and non-verbal stimuli around 240 ms, likely corresponding to lexical selection. Modulations starting around 350 ms prior to vocal onset were only observed when verbal stimuli were involved. These later modulations, likely reflecting interference with phonological-phonetic encoding, were observed only when overlap between tasks was maximal and the same underlying neural circuits were engaged (cross-talk).
Identifiers
PMID: 27992586
Full text
Article (Published version) (1.4 MB) - public document Free access
Structures
Research group NeuroPsychoLinguistique
Project FNS: no 105319_146113
Citation
(ISO format)
FARGIER, Raphaël, LAGANARO, Marina. Neurophysiological Modulations of Non-Verbal and Verbal Dual-Tasks Interference during Word Planning. In: PLOS ONE, 2016, vol. 11, n° 12, p. e0168358. https://archive-ouverte.unige.ch/unige:94877

182 hits

67 downloads

Update

Deposited on : 2017-06-15

Export document
Format :
Citation style :