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Lookup NU author(s): Dr Steven Middleton, Dr Claudia RaccaORCiD, Professor Mark Cunningham, Professor Thomas Knopfel, Dr Ian Schofield, Dr Alistair Jenkins, Professor Miles Whittington
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Both cerebellum and neocortex receive input from the somatosensory system. Interaction between these regions has been proposed to underpin the correct selection and execution of motor commands, but it is not clear how such interactions occur. In neocortex, inputs give rise to population rhythms, providing a spatiotemporal coding strategy for inputs and consequent outputs. Here, we show that similar patterns of rhythm generation occur in cerebellum during nicotinic receptor subtype activation. Both gamma oscillations (30-80 Hz) and very fast oscillations (VFOs, 80-160 Hz) were generated by intrinsic cerebellar cortical circuitry in the absence of functional glutamatergic connections. As in neocortex, gamma rhythms were dependent on GABAA receptor-mediated inhibition, whereas VFOs required only nonsynaptically connected intercellular networks. The ability of cerebellar cortex to generate population rhythms within the same frequency bands as neocortex suggests that they act as a common spatiotemporal code within which corticocerebellar dialog may occur. © 2008 Elsevier Inc. All rights reserved.
Author(s): Middleton SJ, Racca C, Cunningham MO, Traub RD, Monyer H, Knopfel T, Schofield IS, Jenkins A, Whittington MA
Publication type: Article
Publication status: Published
Journal: Neuron
Year: 2008
Volume: 58
Issue: 5
Pages: 763-774
ISSN (print): 0896-6273
ISSN (electronic): 1097-4199
Publisher: Cell Press
URL: http://dx.doi.org/10.1016/j.neuron.2008.03.030
DOI: 10.1016/j.neuron.2008.03.030
PubMed id: 18549787
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