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Scientific article
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French

Functional and time-course changes in single word production from childhood to adulthood

Contributors

Laganaro, Marina; Tzieropoulos, Hélène; Frauenfelder, Ulrich Hans; Zesiger, Pascal Eric

Published in

NeuroImage, vol. 111, p. 204-214

Publication date

2015

Abstract

Picture naming tasks are widely used both in children and adults to investigate language production for research and for assessment purposes. The main theoretical models of single word production based on the investigation of picture naming in adults provide a detailed account of the principal mental operations involved in the transformation of an abstract concept into articulated speech and their temporal dynamics. These models and in particular their time-course do not apply directly to children who display much longer production latencies than adults. Here we investigate the functional processes and the temporal dynamics of word encoding in school-age children and adults. ERPs were analysed frompicture onset to the onset of articulation in 32 children and 32 adults performing the same overt picture naming task. Waveform analyses were not informative since differences appeared throughout the entire period, due to an early shift of waveform morphology and to larger amplitudes in children. However, when the sequences of periods of topographic stabilitywere considered, different patterns of electric fields at scalp only appeared in approximately the first third of the analysed period, corresponding to the P1–N1 complex. Fromabout 200 ms in adults and from300 ms in children to articulation onset similar patterns of global topography were observed across groups but with a different time distribution. These results indicate qualitative changes in an early time-window, likely corresponding to pre-linguistic processes, and only quantitative changes in later time-windows, suggesting similar mental operations underlying lexical processes between age-school children and adults, with temporal dynamic changes during development.

Keywords

  • Development
  • Language
  • Picture naming
  • ERP

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

LAGANARO, Marina et al. Functional and time-course changes in single word production from childhood to adulthood. In: NeuroImage, 2015, vol. 111, p. 204–214. doi: 10.1016/j.neuroimage.2015.02.027

Main files (1)

Article (Published version)

Identifiers

Additional URL for this publication

http://linkinghub.elsevier.com/retrieve/pii/S1053811915001287

Journal ISSN

1053-8119
719views
672downloads

Technical informations

Creation

01/02/2016 10:51:00

First validation

01/02/2016 10:51:00

Update

15/03/2023 00:07:28

Status update

15/03/2023 00:07:28

Last indexation

31/10/2024 02:42:06
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