Protracted Development of the Proprioceptive Brain Network During and Beyond Adolescence.
Identifieur interne : 000532 ( Main/Exploration ); précédent : 000531; suivant : 000533Protracted Development of the Proprioceptive Brain Network During and Beyond Adolescence.
Auteurs : Fabien Cignetti ; Aurelie Fontan ; Jasmine Menant [Australie] ; Bruno Nazarian [France] ; Jean-Luc Anton [France] ; Marianne Vaugoyeau ; Christine AssaianteSource :
- Cerebral cortex (New York, N.Y. : 1991) [ 1460-2199 ] ; 2017.
Abstract
Proprioceptive processing is important for appropriate motor control, providing error-feedback and internal representation of movement for adjusting the motor command. Although proprioceptive functioning improves during childhood and adolescence, we still have few clues about how the proprioceptive brain network develops. Here, we investigated developmental changes in the functional organization of this network in early adolescents (n = 18, 12 ± 1 years), late adolescents (n = 18, 15 ± 1), and young adults (n = 18, 32 ± 4), by examining task-evoked univariate activity and patterns of functional connectivity (FC) associated with seeds placed in cortical (supramarginal gyrus) and subcortical (dorsal rostral putamen) regions. We found that although the network is already well established in early adolescence both in terms of topology and functioning principles (e.g., long-distance communication and economy in wiring cost), it is still undergoing refinement during adolescence, including a shift from diffuse to focal FC and a decreased FC strength. This developmental effect was particularly pronounced for fronto-striatal connections. Furthermore, changes in FC features continued beyond adolescence, although to a much lower extent. Altogether, these findings point to a protracted developmental time course for the proprioceptive network, which breaks with the relatively early functional maturation often associated with sensorimotor networks.
DOI: 10.1093/cercor/bhv323
PubMed: 26733535
Affiliations:
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type="eISSN">1460-2199</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Proprioceptive processing is important for appropriate motor control, providing error-feedback and internal representation of movement for adjusting the motor command. Although proprioceptive functioning improves during childhood and adolescence, we still have few clues about how the proprioceptive brain network develops. Here, we investigated developmental changes in the functional organization of this network in early adolescents (n = 18, 12 ± 1 years), late adolescents (n = 18, 15 ± 1), and young adults (n = 18, 32 ± 4), by examining task-evoked univariate activity and patterns of functional connectivity (FC) associated with seeds placed in cortical (supramarginal gyrus) and subcortical (dorsal rostral putamen) regions. We found that although the network is already well established in early adolescence both in terms of topology and functioning principles (e.g., long-distance communication and economy in wiring cost), it is still undergoing refinement during adolescence, including a shift from diffuse to focal FC and a decreased FC strength. This developmental effect was particularly pronounced for fronto-striatal connections. Furthermore, changes in FC features continued beyond adolescence, although to a much lower extent. Altogether, these findings point to a protracted developmental time course for the proprioceptive network, which breaks with the relatively early functional maturation often associated with sensorimotor networks.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Marseille</li></settlement><orgName><li>Université d'Aix-Marseille</li></orgName></list><tree><noCountry><name sortKey="Assaiante, Christine" sort="Assaiante, Christine" uniqKey="Assaiante C" first="Christine" last="Assaiante">Christine Assaiante</name><name sortKey="Cignetti, Fabien" sort="Cignetti, Fabien" uniqKey="Cignetti F" first="Fabien" last="Cignetti">Fabien Cignetti</name><name sortKey="Fontan, Aurelie" sort="Fontan, Aurelie" uniqKey="Fontan A" first="Aurelie" last="Fontan">Aurelie Fontan</name><name sortKey="Vaugoyeau, Marianne" sort="Vaugoyeau, Marianne" uniqKey="Vaugoyeau M" first="Marianne" last="Vaugoyeau">Marianne Vaugoyeau</name></noCountry><country name="Australie"><noRegion><name sortKey="Menant, Jasmine" sort="Menant, Jasmine" uniqKey="Menant J" first="Jasmine" last="Menant">Jasmine Menant</name></noRegion></country><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Nazarian, Bruno" sort="Nazarian, Bruno" uniqKey="Nazarian B" first="Bruno" last="Nazarian">Bruno Nazarian</name></region><name sortKey="Anton, Jean Luc" sort="Anton, Jean Luc" uniqKey="Anton J" first="Jean-Luc" last="Anton">Jean-Luc Anton</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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