Dynamic properties of human brain structure: learning-related changes in cortical areas and associated fiber connections.

Détails

Ressource 1Télécharger: 11670.full.pdf (1221.55 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_93D1962DED23
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Dynamic properties of human brain structure: learning-related changes in cortical areas and associated fiber connections.
Périodique
The Journal of neuroscience
Auteur(s)
Taubert M., Draganski B., Anwander A., Müller K., Horstmann A., Villringer A., Ragert P.
ISSN
1529-2401 (Electronic)
ISSN-L
0270-6474
Statut éditorial
Publié
Date de publication
01/09/2010
Peer-reviewed
Oui
Volume
30
Numéro
35
Pages
11670-11677
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article
Publication Status: ppublish
Résumé
Recent findings in neuroscience suggest that adult brain structure changes in response to environmental alterations and skill learning. Whereas much is known about structural changes after intensive practice for several months, little is known about the effects of single practice sessions on macroscopic brain structure and about progressive (dynamic) morphological alterations relative to improved task proficiency during learning for several weeks. Using T1-weighted and diffusion tensor imaging in humans, we demonstrate significant gray matter volume increases in frontal and parietal brain areas following only two sessions of practice in a complex whole-body balancing task. Gray matter volume increase in the prefrontal cortex correlated positively with subject's performance improvements during a 6 week learning period. Furthermore, we found that microstructural changes of fractional anisotropy in corresponding white matter regions followed the same temporal dynamic in relation to task performance. The results make clear how marginal alterations in our ever changing environment affect adult brain structure and elucidate the interrelated reorganization in cortical areas and associated fiber connections in correlation with improvements in task performance.
Mots-clé
Adult, Brain/anatomy & histology, Brain/physiology, Brain Mapping/methods, Cerebral Cortex/anatomy & histology, Cerebral Cortex/physiology, Female, Humans, Learning/physiology, Male, Nerve Fibers, Myelinated/physiology, Neural Pathways/anatomy & histology, Neural Pathways/physiology, Neuronal Plasticity/physiology, Postural Balance/physiology, Psychomotor Performance/physiology, Young Adult
Pubmed
Web of science
Open Access
Oui
Création de la notice
29/09/2010 16:12
Dernière modification de la notice
08/05/2019 22:11
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