Place-cell capacity and volatility with grid-like inputs
نویسندگان
چکیده
منابع مشابه
Extracting grid cell characteristics from place cell inputs using non-negative principal component analysis.
Many recent models study the downstream projection from grid cells to place cells, while recent data have pointed out the importance of the feedback projection. We thus asked how grid cells are affected by the nature of the input from the place cells. We propose a single-layer neural network with feedforward weights connecting place-like input cells to grid cell outputs. Place-to-grid weights a...
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4 Hebbian analysis of the transformation of medial entorhinal grid-cell inputs 5 to hippocampal place fields 6 7 8 9 10 Francesco Savelli and James J. Knierim 11 12 Zanvyl Krieger Mind/Brain Institute 13 Solomon H. Snyder Department of Neuroscience 14 Johns Hopkins University 15 Baltimore, MD 16 17 Department of Neurobiology and Anatomy 18 University of Texas Medical School at Houston 19 Housto...
متن کاملHebbian analysis of the transformation of medial entorhinal grid-cell inputs to hippocampal place fields.
The discovery of grid cells in the medial entorhinal cortex (MEC) permits the characterization of hippocampal computation in much greater detail than previously possible. The present study addresses how an integrate-and-fire unit driven by grid-cell spike trains may transform the multipeaked, spatial firing pattern of grid cells into the single-peaked activity that is typical of hippocampal pla...
متن کاملExtracting grid characteristics from spatially distributed place cell inputs using non-negative PCA
Many recent models study the downstream projection from grid cells to place cells, while recent data has pointed out the importance of the feedback projection. We thus asked how grid cells are affected by the nature of the input from the place cells. We propose a two-layered neural network with feedforward weights connecting place-like input cells to grid cell outputs. Place-to-grid weights wer...
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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: eLife
سال: 2021
ISSN: 2050-084X
DOI: 10.7554/elife.62702