Distinct Inhibitory Circuits Orchestrate Cortical beta and gamma Band Oscillations.
Distinct Inhibitory Circuits Orchestrate Cortical beta and gamma Band Oscillations.
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DOI:
10.1016/j.neuron.2017.11.033
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发表时间:
2017-12-20
期刊:
影响因子:
16.2
通讯作者:
Zhang X
中科院分区:
文献类型:
--
作者:
Chen G;Zhang Y;Li X;Zhao X;Ye Q;Lin Y;Tao HW;Rasch MJ;Zhang X
Distinct subtypes of inhibitory interneuron are known to shape diverse rhythmic activities in the cortex, but how they interact to orchestrate specific band activity remains largely unknown. By recording optogenetically tagged interneurons of specific subtypes in the primary visual cortex of behaving mice, we show that spiking of somatostatin (SOM)- and parvalbumin (PV)-expressing interneurons preferentially correlates with cortical beta and gamma band oscillations, respectively. Suppression of SOM cell spiking reduces the spontaneous low-frequency band (<30-Hz) oscillations and selectively reduces visually induced enhancement of beta oscillation. In comparison, suppressing PV cell activity elevates the synchronization of spontaneous activity across a broad frequency range and further precludes visually induced changes in beta and gamma oscillations. Rhythmic activation of SOM and PV cells in the local circuit entrains resonant activity in the narrow 5- to 30-Hz band and the wide 20- to 80-Hz band, respectively. Together, these findings reveal differential and cooperative roles of SOM and PV inhibitory neurons in orchestrating specific cortical oscillations.
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影响因子:
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DOI:
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发表时间:
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期刊:
Science (New York, N.Y.)
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