NDLI: Functional integration across a gradient of corticostriatal channels controls UP state transitions in the dorsal striatum

Content Provider	PubMed Central
Author	Fernando, Kasanetz Riquelme, Luis A. Valeria, Della-maggiore O'donnell, Patricio Murer, M. Gustavo
Abstract	Coordinated near-threshold depolarized states in cortical and striatal neurons may contribute to form functionally segregated channels of information processing. Recent anatomical studies have identified pathways that could support spiraling interactions across corticostriatal channels, but a functional outcome of such spiraling remains to be identified. Here, we examined whether plateau depolarizations (UP states) in striatal neurons relate better to active epochs in local field potentials recorded from closely related cortical areas than to those recorded in less-related cortical areas. Our results show that, in anesthetized rats, the coordination between cortical areas and striatal regions obeys a mediolateral gradient and keeps track of slow wave trajectory across the neocortex. Moreover, activity in one cortical area induced phase advances in UP state onset and phase delays in UP state termination in nonmatching striatal regions, reflecting the existence of functional connections that could encode large-scale interactions between corticostriatal channels as subthreshold influences on striatal projection neurons.
Related Links	http://dx.doi.org/10.1073/pnas.0711113105
Ending Page	8129
Page Count	6
Starting Page	8124
File Format	PDF
ISSN	00278424
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	23
Volume Number	105
Language	English
Publisher	National Academy of Sciences
Publisher Date	2008-06-10
Access Restriction	Open
Rights Holder	National Academy of Sciences
Subject Keyword	General Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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