The "handwriting brain": a meta-analysis of neuroimaging studies of motor versus orthographic processes.

Détails

ID Serval
serval:BIB_D91759068117
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The "handwriting brain": a meta-analysis of neuroimaging studies of motor versus orthographic processes.
Périodique
Cortex
Auteur(s)
Planton S., Jucla M., Roux F.E., Démonet J.F.
ISSN
1973-8102 (Electronic)
ISSN-L
0010-9452
Statut éditorial
Publié
Date de publication
2013
Peer-reviewed
Oui
Volume
49
Numéro
10
Pages
2772-2787
Langue
anglais
Notes
Publication types: Journal Article Publication Status: ppublish
Résumé
INTRODUCTION: Handwriting is a modality of language production whose cerebral substrates remain poorly known although the existence of specific regions is postulated. The description of brain damaged patients with agraphia and, more recently, several neuroimaging studies suggest the involvement of different brain regions. However, results vary with the methodological choices made and may not always discriminate between "writing-specific" and motor or linguistic processes shared with other abilities.
METHODS: We used the "Activation Likelihood Estimate" (ALE) meta-analytical method to identify the cerebral network of areas commonly activated during handwriting in 18 neuroimaging studies published in the literature. Included contrasts were also classified according to the control tasks used, whether non-specific motor/output-control or linguistic/input-control. These data were included in two secondary meta-analyses in order to reveal the functional role of the different areas of this network.
RESULTS: An extensive, mainly left-hemisphere network of 12 cortical and sub-cortical areas was obtained; three of which were considered as primarily writing-specific (left superior frontal sulcus/middle frontal gyrus area, left intraparietal sulcus/superior parietal area, right cerebellum) while others related rather to non-specific motor (primary motor and sensorimotor cortex, supplementary motor area, thalamus and putamen) or linguistic processes (ventral premotor cortex, posterior/inferior temporal cortex).
CONCLUSIONS: This meta-analysis provides a description of the cerebral network of handwriting as revealed by various types of neuroimaging experiments and confirms the crucial involvement of the left frontal and superior parietal regions. These findings provide new insights into cognitive processes involved in handwriting and their cerebral substrates.
Pubmed
Web of science
Création de la notice
24/01/2014 19:48
Dernière modification de la notice
03/03/2018 21:52
Données d'usage