Results 61 to 70 of about 12,675,276 (305)

Grid cells on steeply sloping terrain: evidence for planar rather than volumetric encoding

Frontiers in Psychology, 2015
Neural encoding of navigable space involves a network of structures centred on the hippocampus, whose neurons –place cells – encode current location. Input to the place cells includes afferents from the entorhinal cortex, which contains grid cells. These
Robin Michael Andrew Hayman, Giulio eCasali, Jonathan eWilson, Kate eJeffery   +3 more
doaj   +1 more source

Modeling large scale species abundance with latent spatial processes [PDF]

, 2009
Modeling species abundance patterns using local environmental features is an important, current problem in ecology. The Cape Floristic Region (CFR) in South Africa is a global hot spot of diversity and endemism, and provides a rich class of species ...
Chakraborty, Avishek, Gelfand, Alan E., Latimer, Andrew M., Silander Jr, John A., Wilson, Adam M.   +4 more
core   +1 more source

Correlation structure of grid cells is preserved during sleep

Nature Neuroscience, 2017
The network of grid cells in the medial entorhinal cortex (MEC) forms a fixed reference frame for mapping physical space. The mechanistic origin of the grid representation is unknown, but continuous attractor network models explain multiple fundamental ...
Richard J. Gardner, Li Lu, T. Wernle, M. Moser, E. Moser   +4 more
semanticscholar   +1 more source

Dynamic self-organized error-correction of grid cells by border cells [PDF]

bioRxiv, 2018
Grid cells in the entorhinal cortex are believed to establish their regular, spatially correlated firing patterns by path integration of the animal’s motion. Mechanisms for path integration, e.g.
Eli Pollock, Niral Desai, Xue-Xin Wei, V. Balasubramanian   +3 more
semanticscholar   +1 more source

Automated Measurement of Grid Cell Firing Characteristics

Algorithms
We describe GridMet as open-source software that automatically measures the spatial tuning parameters of grid cells, such as firing field size, spacing, and orientation angles.
Nate M. Sutton, Blanca E. Gutiérrez-Guzmán, Holger Dannenberg, Giorgio A. Ascoli   +3 more
doaj   +1 more source

Representation of nonspatial and spatial information in the lateral entorhinal cortex

Frontiers in Behavioral Neuroscience, 2011
Some theories of memory propose that the hippocampus integrates the individual items and events of experience within a contextual or spatial framework.
Sachin S Deshmukh, Sachin S Deshmukh, James J Knierim, James J Knierim   +3 more
doaj   +1 more source

Robust variability of grid cell properties within individual grid modules enhances encoding of local space

eLife
Although grid cells are one of the most well-studied functional classes of neurons in the mammalian brain, whether there is a single orientation and spacing value per grid module has not been carefully tested. We analyze a recent large-scale recording of
William T Redman, Santiago Acosta-Mendoza, Xue-Xin Wei, Michael J Goard   +3 more
doaj   +1 more source

Interaction of Norepinephrine and Glucocorticoids Modulate Inhibition of Principle Cells of Layer II Medial Entorhinal Cortex in Male Mice

Frontiers in Synaptic Neuroscience, 2018
Spatial memory processing requires functional interaction between the hippocampus and the medial entorhinal cortex (MEC). The grid cells of the MEC are most abundant in layer II and rely on a complex network of local inhibitory interneurons to generate ...
Jeremiah P. Hartner, Laura A. Schrader, Laura A. Schrader   +2 more
doaj   +1 more source

Correlations and functional connections in a population of grid cells [PDF]

, 2014
We study the statistics of spike trains of simultaneously recorded grid cells in freely behaving rats. We evaluate pairwise correlations between these cells and, using a generalized linear model (kinetic Ising model), study their functional connectivity.
Dunn, Benjamin, Mørreaunet, Maria, Roudi, Yasser   +2 more
core   +3 more sources

Soil Erosion Modeling and Comparison Using Slope Units and Grid Cells in Shihmen Reservoir Watershed in Northern Taiwan

Water, 2018
Soil erosion is a global problem that will become worse as a result of climate change. While many parts of the world are speculating about the effect of increased rainfall intensity and frequency on soil erosion, Taiwan’s mountainous areas are already ...
Yi-Hsin Liu, Dong-Huang Li, Walter W. Chen, B. Lin, U. Seeboonruang, F. Tsai   +5 more
semanticscholar   +1 more source