期刊
NEURON
卷 67, 期 2, 页码 308-320出版社
CELL PRESS
DOI: 10.1016/j.neuron.2010.06.019
关键词
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资金
- Wellcome Trust
- European Research Council
- MRC [G0601943, G116/147] Funding Source: UKRI
- Medical Research Council [G116/147, G0601943, G0601943B] Funding Source: researchfish
The mammalian brain exhibits profuse interregional connectivity. How information flow is rapidly and flexibly switched among connected areas remains poorly understood. Task-dependent changes in the power and interregion coherence of network oscillations suggest that such oscillations play a role in signal routing. We show that switching one of several convergent pathways from an asynchronous to an oscillatory state allows accurate selective transmission of population-coded information, which can be extracted even when other convergent pathways fire asynchronously at comparable rates. We further show that the band-pass filtering required to perform this information extraction can be implemented in a simple spiking network model with a single feed-forward interneuron layer. This constitutes a mechanism for flexible signal routing in neural circuits, which exploits sparsely synchronized network oscillations and temporal filtering by feed-forward inhibition.
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