Cell-Type and State-Dependent Synchronization among Rodent Somatosensory, Visual, Perirhinal Cortex, and Hippocampus CA1

Frontiers in Systems Neuroscience
Martin VinckCyriel M A Pennartz

Abstract

Beta and gamma rhythms have been hypothesized to be involved in global and local coordination of neuronal activity, respectively. Here, we investigated how cells in rodent area S1BF are entrained by rhythmic fluctuations at various frequencies within the local area and in connected areas, and how this depends on behavioral state and cell type. We performed simultaneous extracellular field and unit recordings in four connected areas of the freely moving rat (S1BF, V1M, perirhinal cortex, CA1). S1BF spiking activity was strongly entrained by both beta and gamma S1BF oscillations, which were associated with deactivations and activations, respectively. We identified multiple classes of fast spiking and excitatory cells in S1BF, which showed prominent differences in rhythmic entrainment and in the extent to which phase locking was modulated by behavioral state. Using an additional dataset acquired by whole-cell recordings in head-fixed mice, these cell classes could be compared with identified phenotypes showing gamma rhythmicity in their membrane potential. We next examined how S1BF cells were entrained by rhythmic fluctuations in connected brain areas. Gamma-synchronization was detected in all four areas, however we did not detect...Continue Reading

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Citations

May 27, 2017·Nature Communications·Jeroen J BosCyriel M A Pennartz
Jan 11, 2020·Cerebral Cortex·Carlos Del Rio-BermudezMark S Blumberg
Mar 6, 2019·Proceedings of the National Academy of Sciences of the United States of America·Matthew R KrauseChristopher C Pack
Dec 19, 2019·Cell Reports·Jeroen J BosCyriel M A Pennartz
May 5, 2021·Hippocampus·Carlos Del Rio-Bermudez, Mark S Blumberg

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Methods Mentioned

BETA
transgenic

Software Mentioned

Matlab
Matlab FieldTrip toolbox
WPLI
Neuralynx
MClust

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