Neurochemical changes within human early blind occipital cortex.

Détails

ID Serval
serval:BIB_9CA0341D1DEF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Neurochemical changes within human early blind occipital cortex.
Périodique
Neuroscience
Auteur⸱e⸱s
Weaver K.E., Richards T.L., Saenz M., Petropoulos H., Fine I.
ISSN
1873-7544 (Electronic)
ISSN-L
0306-4522
Statut éditorial
Publié
Date de publication
2013
Volume
252
Pages
222-233
Langue
anglais
Notes
Publication types: Journal ArticlePublication Status: ppublish
Résumé
Early blindness results in occipital cortex neurons responding to a wide range of auditory and tactile stimuli. These changes in tuning properties are accompanied by an extensive reorganization of the occipital cortex that includes alterations in anatomical structure, neurochemical and metabolic pathways. Although it has been established in animal models that neurochemical pathways are heavily affected by early visual deprivation, the effects of blindness on these pathways in humans is still not well characterized. Here, using (1)H magnetic resonance spectroscopy in nine early blind and normally sighted subjects, we find that early blindness is associated with higher levels of creatine, choline and myo-Inositol and indications of lower levels of GABA within the occipital cortex. These results suggest that the cross-modal responses associated with early blindness may, at least in part, be driven by changes within occipital biochemical pathways.
Pubmed
Web of science
Création de la notice
21/11/2013 18:58
Dernière modification de la notice
20/08/2019 16:03
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