scholarly journals Nucleus reuniens of the thalamus contains head direction cells

eLife ◽  
2014 ◽  
Vol 3 ◽  
Author(s):  
Maciej M Jankowski ◽  
Md Nurul Islam ◽  
Nicholas F Wright ◽  
Seralynne D Vann ◽  
Jonathan T Erichsen ◽  
...  
Keyword(s):  
Spatial Processing ◽  
Brain Cells ◽  
Head Direction ◽  
Head Direction Cells ◽  
Nucleus Reuniens ◽  
Connected Network ◽  
Heading Direction ◽  
Freely Moving ◽  
First Time ◽  
Discrete Populations

Discrete populations of brain cells signal heading direction, rather like a compass. These ‘head direction’ cells are largely confined to a closely-connected network of sites. We describe, for the first time, a population of head direction cells in nucleus reuniens of the thalamus in the freely-moving rat. This novel subcortical head direction signal potentially modulates the hippocampal CA fields directly and, thus, informs spatial processing and memory.

scholarly journals Author response: Nucleus reuniens of the thalamus contains head direction cells

2014 ◽  
Author(s):  
Maciej M Jankowski ◽  
Md Nurul Islam ◽  
Nicholas F Wright ◽  
Seralynne D Vann ◽  
Jonathan T Erichsen ◽  
...  
Keyword(s):  
Author Response ◽  
Head Direction ◽  
Head Direction Cells ◽  
Nucleus Reuniens

scholarly journals Head-direction cells escaping attractor dynamics in the parahippocampal region

2018 ◽  
Author(s):  
Olga Kornienko ◽  
Patrick Latuske ◽  
Laura Kohler ◽  
Kevin Allen
Keyword(s):  
Entorhinal Cortex ◽  
Computational Models ◽  
Head Direction ◽  
Grid Cells ◽  
Visual Landmarks ◽  
Head Direction Cells ◽  
Medial Entorhinal Cortex ◽  
Attractor Dynamics ◽  
Freely Moving ◽  
Uniform Population

AbstractNavigation depends on the activity of head-direction (HD) cells. Computational models postulate that HD cells form a uniform population that reacts coherently to changes in landmarks. We tested whether this applied to HD cells of the medial entorhinal cortex and parasubiculum, areas where the HD signal contributes to the periodic firing of grid cells. Manipulations of the visual landmarks surrounding freely-moving mice altered the tuning of HD cells. Importantly, these tuning modifications were often non-coherent across cells, refuting the notion that HD cells form a uniform population constrained by attractor-like dynamics. Instead, examination of theta rhythmicity 1revealed two types of HD cells, theta rhythmic and non-rhythmic cells. Larger tuning alterations were observed predominantly in non-rhythmic HD cells. Moreover, only non-rhythmic HD cells reorganized their firing associations in response to visual land-mark changes. These findings reveal a theta non-rhythmic HD signal whose malleable organization is controlled by visual landmarks.

scholarly journals A Bio-inspired 3-D Neural Compass Based on Head Direction Cells

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Baozhong Li ◽  
Yanming Liu ◽  
Lei Lai
Keyword(s):  
Head Direction ◽  
Head Direction Cells

Hippocampal Place-Cell Firing During Movement in Three-Dimensional Space

2001 ◽  
Vol 85 (1) ◽  
pp. 105-116 ◽  
Author(s):  
James J. Knierim ◽  
Bruce L. McNaughton
Keyword(s):  
Hippocampal Neurons ◽  
Horizontal Plane ◽  
Three Dimensional ◽  
Place Cell ◽  
Place Cells ◽  
Limbic Cortex ◽  
Head Direction ◽  
Head Direction Cells ◽  
Recording Apparatus ◽  
Place Fields

“Place” cells of the rat hippocampus are coupled to “head direction” cells of the thalamus and limbic cortex. Head direction cells are sensitive to head direction in the horizontal plane only, which leads to the question of whether place cells similarly encode locations in the horizontal plane only, ignoring the z axis, or whether they encode locations in three dimensions. This question was addressed by recording from ensembles of CA1 pyramidal cells while rats traversed a rectangular track that could be tilted and rotated to different three-dimensional orientations. Cells were analyzed to determine whether their firing was bound to the external, three-dimensional cues of the environment, to the two-dimensional rectangular surface, or to some combination of these cues. Tilting the track 45° generally provoked a partial remapping of the rectangular surface in that some cells maintained their place fields, whereas other cells either gained new place fields, lost existing fields, or changed their firing locations arbitrarily. When the tilted track was rotated relative to the distal landmarks, most place fields remapped, but a number of cells maintained the same place field relative to the x-y coordinate frame of the laboratory, ignoring the z axis. No more cells were bound to the local reference frame of the recording apparatus than would be predicted by chance. The partial remapping demonstrated that the place cell system was sensitive to the three-dimensional manipulations of the recording apparatus. Nonetheless the results were not consistent with an explicit three-dimensional tuning of individual hippocampal neurons nor were they consistent with a model in which different sets of cells are tightly coupled to different sets of environmental cues. The results are most consistent with the statement that hippocampal neurons can change their “tuning functions” in arbitrary ways when features of the sensory input or behavioral context are altered. Understanding the rules that govern the remapping phenomenon holds promise for deciphering the neural circuitry underlying hippocampal function.

scholarly journals Landmark control and updating of self-movement cues are largely maintained in head direction cells after lesions of the posterior parietal cortex.

2008 ◽  
Vol 122 (4) ◽  
pp. 827-840 ◽  
Author(s):  
Jeffrey L. Calton ◽  
Carol S. Turner ◽  
De-Laine M. Cyrenne ◽  
Brian R. Lee ◽  
Jeffrey S. Taube
Keyword(s):  
Parietal Cortex ◽  
Posterior Parietal Cortex ◽  
Head Direction ◽  
Head Direction Cells ◽  
Posterior Parietal
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