Results 11 to 20 of about 147,603 (238)

Three-dimensional tuning of head direction cells in rats [PDF]

Journal of Neurophysiology, 2019
Head direction (HD) cells fire when the animal faces that cell’s preferred firing direction (PFD) in the horizontal plane. The PFD response when the animal is oriented outside the earth-horizontal plane could result from cells representing direction in the plane of locomotion or as a three-dimensional (3D), global-referenced direction anchored to ...
Michael E, Shinder, Jeffrey S, Taube
openaire   +3 more sources

Head direction cells and the neurophysiological basis for a sense of direction

Progress in Neurobiology, 1998
Animals require two types of fundamental information for accurate navigation: location and directional heading. Current theories hypothesize that animals maintain a neural representation, or cognitive map, of external space in the brain. Whereas cells in the rat hippocampus and parahippocampal regions encode information about location, a second type of
Jeffrey S Taube
exaly   +3 more sources

Head direction cells: properties and functional significance

Current Opinion in Neurobiology, 1996
The strong signal carried by head direction cells in the postsubiculum complements the positional signal carried by hippocampal place cells; together, the directional and positional signals provide the information necessary to permit rats to generate and carry out intelligent, efficient solutions to spatial problems. Our opinion is that the hippocampal
Jb Ranck, Jeffrey S Taube, Ru Müller
exaly   +3 more sources

A Comparison of Neural Decoding Methods and Population Coding Across Thalamo-Cortical Head Direction Cells [PDF]

Frontiers in Neural Circuits, 2019
Head direction (HD) cells, which fire action potentials whenever an animal points its head in a particular direction, are thought to subserve the animal’s sense of spatial orientation.
Zishen Xu, Wei Wu, Shawn S. Winter, Max L. Mehlman, William N. Butler, Christine M. Simmons, Ryan E. Harvey, Laura E. Berkowitz, Yang Chen, Jeffrey S. Taube, Aaron A. Wilber, Benjamin J. Clark   +11 more
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Spatial Navigation: Head Direction Cells Are Anchored by Gravity [PDF]

Current Biology, 2013
Thalamic neurons that signal an animal's direction of heading are crucial for spatial navigation. Both directional coding and flexible use of spatial memory are upended, however, when a rat has to find its way while upside down.
Shapiro M.
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Non-rhythmic head-direction cells in the parahippocampal region are not constrained by attractor network dynamics [PDF]

eLife, 2018
Computational models postulate that head-direction (HD) cells are part of an attractor network integrating head turns. This network requires inputs from visual landmarks to anchor the HD signal to the external world.
Olga Kornienko, Patrick Latuske, Mathis Bassler, Laura Kohler, Kevin Allen   +4 more
doaj   +2 more sources

Granularity of thalamic head direction cells

Abstract Head direction signaling is fundamental for spatial orientation and navigation. The anterodorsal nucleus of the thalamus (ADn) contains a high density of head direction (HD) cells that process sensorimotor inputs for subsequent synaptic integration in postsynaptic cortical areas.
Hijazi, S, Jiang, S, Wülfing, MS, Quach, J, Lachance, PA, Hasselmo, ME, Viney, TJ   +6 more
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Theta-Modulated Head Direction Cells in the Rat Anterior Thalamus [PDF]

Journal of Neuroscience, 2011
A major tool in understanding how the brain processes information is the analysis of neuronal output at each hierarchical level along the pathway of signal propagation. Theta rhythm and head directionality are the two main signals found across all levels of Papez's circuit, which supports episodic memory formation.
Tsanov, Marian, Chah, Ehsan, Vann, Seralynne Denise, Reilly, Richard B., Erichsen, Jonathan Thor, Aggleton, John Patrick, O'Mara, Shane M.   +6 more
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Directional dynamics in the entorhinal cortex of male mice driven by behavioral constraints [PDF]

Nature Communications
The medial entorhinal cortex of rodents contains a variety of functionally-defined cell types, including grid and head direction cells. While evidence indicates that functional types are not associated with clear molecular footprints, the factors that ...
Ruojin Liu, Jun Hao, Xiang Zhang, Shidan Wen, Youran Yang, Haiqian Cai, Kai Gao, Emilio Kropff, Chenglin Miao   +8 more
doaj   +2 more sources

Continuous attractor dynamics in spatial navigation: from population geometry to flexible computation [PDF]

Frontiers in Neuroscience
A central computational problem in spatial navigation is how spatial representations remain stable under noise and uncertainty, and update reliable estimations of continuous variables such as head-direction and position, which respectively rely on the ...
Yani Chen, Yani Chen, Mu Hua, Xuelong Sun, Xuelong Sun, Jigen Peng, Jigen Peng   +6 more
doaj   +2 more sources