Theta phase precession of grid and place cell firing in open environments
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چکیده
منابع مشابه
Theta phase precession of grid and place cell firing in open environments
Place and grid cells in the rodent hippocampal formation tend to fire spikes at successively earlier phases relative to the local field potential theta rhythm as the animal runs through the cell's firing field on a linear track. However, this 'phase precession' effect is less well characterized during foraging in two-dimensional open field environments. Here, we mapped runs through the firing f...
متن کاملPopulation dynamics and theta rhythm phase precession of hippocampal place cell firing: a spiking neuron model.
O'Keefe and Recce ([1993] Hippocampus 68:317-330) have observed that the spatially selective firing of pyramidal cells in the CA1 field of the rat hippocampus tends to advance to earlier phases of the electroencephalogram theta rhythm as a rat passes through the place field of a cell. We present here a neural network model based on integrate- and-fire neurons that accounts for this effect. In t...
متن کاملModels of place and grid cell firing and theta rhythmicity.
Neuronal firing in the hippocampal formation (HF) of freely moving rodents shows striking examples of spatialorganization in the form of place, directional, boundary vector and grid cells. The firing of place and grid cells shows an intriguing form of temporal organization known as 'theta phase precession'. We review the mechanisms underlying theta phase precession of place cell firing, ranging...
متن کاملTheta phase precession and the temporal representation of space: Environmental and behavioural contributions to place cell firing in the rat By
Place cells” fire when a rat enters a particular region of the environment a rate code for space. As the rat traverses the “place field”, the place cell fires earlier in each successive cycle of the theta EEG oscillation a temporal code, known as “phase precession”. Simultaneous recordings were made of place cell action potentials and the local EEG in rats shuttling between the ends of a statio...
متن کاملOrganization of hippocampal cell assemblies based on theta phase precession.
The factors that control the spatial tuning of hippocampal neurons are incompletely understood, and there is no generally agreed upon definition of what constitutes a "place field". One factor that must be considered is the phenomenon of "phase precession". As a rat passes through the place field of a particular hippocampal neuron, its spikes shift to earlier phases of the theta rhythm. Except ...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society B: Biological Sciences
سال: 2014
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2012.0532