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Nancy Kopell
Researcher at Boston University
Publications - 250
Citations - 26251
Nancy Kopell is an academic researcher from Boston University. The author has contributed to research in topics: Population & Hippocampal formation. The author has an hindex of 87, co-authored 246 publications receiving 23708 citations. Previous affiliations of Nancy Kopell include University College London & Massachusetts Institute of Technology.
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Measuring Phase-Amplitude Coupling Between Neuronal Oscillations of Different Frequencies
TL;DR: This work presents a new measure for assessing phase-amplitude CFC, defined as an adaptation of the Kullback-Leibler distance-a function that is used to infer the distance between two distributions-and calculates how much an empirical amplitude distribution-like function over phase bins deviates from the uniform distribution.
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Gamma rhythms and beta rhythms have different synchronization properties.
TL;DR: A simplified model is used to show that the different rhythms in the CA1 region of the hippocampus employ different dynamical mechanisms to synchronize, based on different ionic currents, which are consistent with data suggesting that gamma rhythms are used for relatively local computations whereas beta rhythms are use for higher level interactions involving more distant structures.
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Inhibition-based rhythms: experimental and mathematical observations on network dynamics
TL;DR: This review will provide the reader with a brief outline of the basic properties of inhibition-based oscillations in the CNS by combining research from laboratory models, large-scale neuronal network simulations, and mathematical analysis.
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Theta–gamma coupling increases during the learning of item–context associations
TL;DR: A role for hippocampal theta–gamma coupling in memory recall is suggested after local field potential oscillations recorded from the CA3 region of the dorsal hippocampus of rats as they learned to associate items with their spatial context were studied.
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Dynamic cross-frequency couplings of local field potential oscillations in rat striatum and hippocampus during performance of a T-maze task
Adriano B. L. Tort,Mark A. Kramer,Catherine A. Thorn,Daniel J. Gibson,Yasuo Kubota,Ann M. Graybiel,Nancy Kopell +6 more
TL;DR: Cross-frequency coupling of multiple neuronal rhythms could be a general mechanism used by the brain to perform network-level dynamical computations underlying voluntary behavior, particularly during decision-making behavioral epochs.