Phase-amplitude coupled persistent theta and gamma oscillations in rat primary motor cortex in vitro.
Neuropharmacology(2017)
摘要
In vivo, theta (4–7 Hz) and gamma (30–80 Hz) neuronal network oscillations are known to coexist and display phase-amplitude coupling (PAC). However, in vitro, these oscillations have for many years been studied in isolation. Using an improved brain slice preparation technique we have, using co-application of carbachol (10 μM) and kainic acid (150 nM), elicited simultaneous theta (6.6 ± 0.1 Hz) and gamma (36.6 ± 0.4 Hz) oscillations in rodent primary motor cortex (M1). Each oscillation showed greatest power in layer V. Using a variety of time series analyses we detected significant cross-frequency coupling in 74% of slice preparations.
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关键词
Neuronal network oscillations,M1,Theta,Gamma,Phase amplitude coupling
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