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  Independent control of gamma and theta activity by distinct interneuron networks in the olfactory bulb

Fukunaga, I., Herb, J. T., Kollo, M., Boyden, E. S., & Schaefer, A. T. (2014). Independent control of gamma and theta activity by distinct interneuron networks in the olfactory bulb. Nature Neuroscience, 17(9), 1208-1216. doi:10.1038/nn.3760.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0019-E30D-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-A51B-E
Genre: Journal Article

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Fukunaga, Izumi1, Author              
Herb, Jan T.1, Author              
Kollo, Mihaly1, Author              
Boyden , Edward S , Author
Schaefer, Andreas T.1, Author              
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1Max Planck Research Group Behavioural Neurophysiology (Andreas T. Schaefer), Max Planck Institute for Medical Research, Max Planck Society, ou_1497722              

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 Abstract: Circuits in the brain possess the ability to orchestrate activities on different timescales, but the manner in which distinct circuits interact to sculpt diverse rhythms remains unresolved. The olfactory bulb is a classic example of a place in which slow theta and fast gamma rhythms coexist. Furthermore, inhibitory interneurons that are generally implicated in rhythm generation are segregated into distinct layers, neatly separating local and global motifs. We combined intracellular recordings in vivo with circuit-specific optogenetic interference to examine the contribution of inhibition to rhythmic activity in the mouse olfactory bulb. We found that the two inhibitory circuits controlled rhythms on distinct timescales: local, glomerular networks coordinated theta activity, regulating baseline and odor-evoked inhibition, whereas granule cells orchestrated gamma synchrony and spike timing. Notably, granule cells did not contribute to baseline rhythms or sniff-coupled odor-evoked inhibition. Thus, activities on theta and gamma timescales are controlled by separate, dissociable inhibitory networks in the olfactory bulb.

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Language(s): eng - English
 Dates: 2014-02-272014-06-102014-07-062014-09-01
 Publication Status: Published in print
 Pages: 12
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 Rev. Method: Peer
 Identifiers: DOI: 10.1038/nn.3760
Other: 7991
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Title: Nature Neuroscience
  Other : Nat. Neurosci.
Source Genre: Journal
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Publ. Info: New York, NY : Nature America Inc.
Pages: - Volume / Issue: 17 (9) Sequence Number: - Start / End Page: 1208 - 1216 Identifier: ISSN: 1097-6256
CoNE: https://pure.mpg.de/cone/journals/resource/954925610931