Coordinated grid and place cell replay during rest
نویسندگان
چکیده
منابع مشابه
Methodological Caveats in the Detection of Coordinated Replay between Place Cells and Grid Cells
At rest, hippocampal "place cells," neurons with receptive fields corresponding to specific spatial locations, reactivate in a manner that reflects recently traveled trajectories. These "replay" events have been proposed as a mechanism underlying memory consolidation, or the transfer of a memory representation from the hippocampus to neocortical regions associated with the original sensory expe...
متن کاملCoordinated learning of grid cell and place cell spatial and temporal properties: multiple scales, attention and oscillations.
A neural model proposes how entorhinal grid cells and hippocampal place cells may develop as spatial categories in a hierarchy of self-organizing maps (SOMs). The model responds to realistic rat navigational trajectories by learning both grid cells with hexagonal grid firing fields of multiple spatial scales, and place cells with one or more firing fields, that match neurophysiological data abo...
متن کاملSpatiotemporally coordinated activation detected during apparent rest in fMRI
Introduction Studies have shown that when apparently at rest the brain remains active, and is organized into functional networks that exhibit recurring patterns of activity [1-3]. Here, by exploring time series data at 7T using Wiener deconvolution in combination with a temporal T-statistic [4], we find individual spatiotemporally coordinated activation events during apparent rest, in no partic...
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There is now extensive evidence that the hippocampus replays experiences during quiet rest periods, and that this replay benefits subsequent memory. A critical open question is how memories are prioritized for replay during these offline periods. We addressed this question in an experiment in which participants learned the features of 15 objects and then underwent fMRI scanning to track item-le...
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...
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ژورنال
عنوان ژورنال: Nature Neuroscience
سال: 2016
ISSN: 1097-6256,1546-1726
DOI: 10.1038/nn.4291