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Encyclopedia of Computational Neuroscience pp 1–14Cite as

Hippocampal Oscillations, Mechanisms (PING, ING, Sparse)

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Definition

Oscillations result from synchronization of the underlying neural network. When a neuron fires action potentials at regular intervals, this leads to a periodic change in the membrane potential of its target cells. This periodic change only shows up in the local field potential (LFP) or electroencephalographic (EEG) signal on the scalp if a sufficient number of neurons fire at roughly the same time, i.e., when they are synchronized.

What causes neurons to synchronize their spiking activity? This question has been extensively studied for gamma oscillations (30–90 Hz) in the hippocampus, mostly in vitro (i.e., in slices containing the hippocampus). Gamma oscillations were found to be induced in hippocampal slices under three different sets of conditions, leading to the identification of three gamma-generating mechanisms. Two mechanisms were named after the cell types involved in generating the oscillations: Interneuron Network Gamma, or ING, and Pyramidal Interneuron Network...

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Acknowledgments

This work is supported by funding from the European Union’s Seventh Framework Programme (FP7/2007-2013) under grant agreement n°600925.

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Authors and Affiliations

  1. Neuroinformatics, Donders Institute, Radboud University, Nijmegen, The Netherlands

    Marije ter Wal & Prof. Paul Tiesinga

Authors
  1. Marije ter Wal
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  2. Prof. Paul Tiesinga
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Correspondence to Marije ter Wal .

Editor information

Editors and Affiliations

  1. Atlanta, Georgia, USA

    Dieter Jaeger

  2. Department of Biomedical Engineering, Florida International University, Miami, Florida, USA

    Ranu Jung

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ter Wal, M., Tiesinga, P. (2013). Hippocampal Oscillations, Mechanisms (PING, ING, Sparse). In: Jaeger, D., Jung, R. (eds) Encyclopedia of Computational Neuroscience. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7320-6_475-3

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  • DOI: https://doi.org/10.1007/978-1-4614-7320-6_475-3

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4614-7320-6

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