Open Access
Cholinergic induction of networkoscillations at 40Hz in the hippocampus in vitro
TLDR
These results indicate that subcortical cholinergic input can control hippocampal memory processing by inducing fast net-work oscillations in CA3.Abstract:
. Oscillatoryactivity is generated spontaneously in the CA3 subfield and canpersist for hours. During the oscillatory state, principal neuronsfire action potentials that are phase-related to the extracellularoscillation, but each neuron fires in only a small proportion of thecycles. Both excitatory and inhibitory synaptic events participateduring the network oscillation in a precise temporal pattern.These results indicate that subcortical cholinergic input cancontrol hippocampal memory processing by inducing fast net-work oscillations.read more
Citations
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Journal ArticleDOI
Synchronized Firings in the Networks of Class 1 Excitable Neurons with Excitatory and Inhibitory Connections and Their Dependences on the Forms of Interactions
TL;DR: Synchronized firings in the networks of class 1 excitable neurons with excitatory and inhibitory connections are investigated, and their dependences on the forms of interactions are analyzed.
Dissertation
Collective dynamics of basal ganglia-thalamo-cortical loops and their roles in functions and dysfunctions
TL;DR: In this paper, a nouvelle theory was proposed to explain the role of ganglions of the base (GB) in the maladie de Parkinson and the absence of neurons.
Journal ArticleDOI
Contextual Learning Requires Functional Diversity at Excitatory and Inhibitory Synapses onto CA1 Pyramidal Neurons
TL;DR: It is proposed a new hypothesis that the diversity of synaptic inputs on CA1 neurons may depict cell-specific outputs processing experienced episodes after training, and may provides evidence thatCA1 neurons transmit essential data of contextual information.
Book ChapterDOI
Hippocampal Function and Gonadal Steroids
TL;DR: The hippocampus plays a central role to form new episodic memory in various species in‐ cluding humans and the critical mechanism how to sustain a piece of specific memory and how to organize the memory fragment to form "episodes" is still largely unknown.
References
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A synaptic model of memory: long-term potentiation in the hippocampus
TL;DR: The best understood form of long-term potentiation is induced by the activation of the N-methyl-d-aspartate receptor complex, which allows electrical events at the postsynaptic membrane to be transduced into chemical signals which, in turn, are thought to activate both pre- and post Synaptic mechanisms to generate a persistent increase in synaptic strength.
Journal ArticleDOI
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Journal ArticleDOI
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TL;DR: It is proposed that the autorhythmic electrical properties of central neurons and their connectivity form the basis for an intrinsic functional coordinate system that provides internal context to sensory input.
Journal ArticleDOI
Synchronized oscillations in interneuron networks driven by metabotropic glutamate receptor activation
TL;DR: It is proposed that interneuron network oscillations, in conjunction with intrinsic membrane resonances and long-loop (such as thalamocortical) interactions, contribute to 40-Hz rhythms in vivo.
Journal ArticleDOI
Gamma (40-100 Hz) oscillation in the hippocampus of the behaving rat
TL;DR: It is suggested that gamma oscillation emerges from an interaction between intrinsic oscillatory properties of interneurons and the network properties of the dentate gyrus and that Gamma oscillation in the CA3-CA1 circuitry is suppressed by either the hilar region or the entorhinal cortex.