The whisking oscillator circuit.
The whisking oscillator circuit.
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DOI:
10.1038/s41586-022-05144-8
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发表时间:
2022-09
期刊:
影响因子:
64.8
通讯作者:
Wang, Fan
中科院分区:
文献类型:
--
作者:
Takatoh, Jun;Prevosto, Vincent;Thompson, P. M.;Lu, Jinghao;Chung, Leeyup;Harrahill, Andrew;Li, Shun;Zhao, Shengli;He, Zhigang;Golomb, David;Kleinfeld, David;Wang, Fan
Central oscillators are primordial neural circuits that generate and control rhythmic movements . Mechanistic understanding of these circuits requires genetic identification of the oscillator neurons and their synaptic connections, to target electrophysiological recording and causal manipulation during behavior. Yet, such targeting remains a challenge with mammalian systems. Here, we delimit the oscillator circuit that drives rhythmic whisking, a motor action central to foraging and active sensing in rodents. We found that the whisking oscillator consists of parvalbumin-expressing inhibitory neurons located in the vibrissa intermediate reticular nucleus (vIRtPV) in the brainstem. vIRtPV neurons receive descending excitatory inputs and form recurrent inhibitory connections among themselves. Silencing vIRtPV neurons eliminated rhythmic whisking and resulted in sustained vibrissae protraction. In vivo recording of opto-tagged vIRtPV neurons in awake mice showed that these cells spike tonically when animals are at rest, and transition to rhythmic bursting at the onset of whisking, suggesting that rhythm generation is likely the result of network dynamics, as opposed to intrinsic cellular properties. Importantly, ablating inhibitory synaptic inputs to vIRtPV neurons quenched their rhythmic bursting, impaired the tonic-to-bursting transition and abolished regular whisking. Thus, the whisking oscillator is an all-inhibitory network and recurrent synaptic inhibition plays a key role in its rhythmogenesis.
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影响因子:
16.2
作者:
Deschênes M;Takatoh J;Kurnikova A;Moore JD;Demers M;Elbaz M;Furuta T;Wang F;Kleinfeld D
通讯作者:
Kleinfeld D
影响因子:
25
作者:
Lin, John Y.;Knutsen, Per Magne;Muller, Arnaud;Kleinfeld, David;Tsien, Roger Y.
通讯作者:
Tsien, Roger Y.
影响因子:
16.2
作者:
Bellavance, Marie-Andree;Takatoh, Jun;Deschenes, Martin
通讯作者:
Deschenes, Martin
影响因子:
16.2
作者:
Aljadeff J;Lansdell BJ;Fairhall AL;Kleinfeld D
通讯作者:
Kleinfeld D
DOI:
10.1038/nrn.2016.9
发表时间:
2016-04
期刊:
Nature reviews. Neuroscience
影响因子:
--
作者:
Kiehn O
通讯作者:
Kiehn O