Head direction cells in a migratory bird prefer north [PDF]
Science Advances, 2022 Animals exhibit remarkable navigation abilities as if they have an internal compass. Head direction (HD) cells encoding the animal’s heading azimuth are found in the brain of several animal species; the HD cell signals are dependent on the vestibular nuclei, where magnetic responsive cells are present in birds.
Susumu Takahashi +4 more
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The Neural Correlates of Spatial Disorientation in Head Direction Cells [PDF]
eneuro, 2022 While the brain has evolved robust mechanisms to counter spatial disorientation, their neural underpinnings remain unknown. To explore these underpinnings, we monitored the activity of anterodorsal thalamic head direction (HD) cells in rats while they underwent unidirectional or bidirectional rotation at different speeds and under different conditions (
Roddy M. Grieves +4 more
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The Preferred Directions of Conjunctive Grid X Head Direction Cells in the Medial Entorhinal Cortex Are Periodically Organized. [PDF]
PLoS ONE, 2016 The discovery of speed-modulated grid, head direction, and conjunctive grid x head direction cells in the medial entorhinal cortex has led to the hypothesis that path integration, the updating of one's spatial representation based on movement, may be ...
Alexander Thomas Keinath
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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
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A Positioning Method Based on Place Cells and Head-Direction Cells for Inertial/Visual Brain-Inspired Navigation System [PDF]
Sensors, 2021 Mammals rely on vision and self-motion information in nature to distinguish directions and navigate accurately and stably. Inspired by the mammalian brain neurons to represent the spatial environment, the brain-inspired positioning method based on multi ...
Yudi Chen +5 more
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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 +11 more
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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 +6 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 +4 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 +6 more
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