Results 41 to 50 of about 581,430 (272)
Optimal cue combination and landmark-stability learning in the head direction system. [PDF]
Maintaining a sense of direction requires combining information from static environmental landmarks with dynamic information about self-motion. This is accomplished by the head direction system, whose neurons - head direction cells - encode specific head
Jeffery, KJ, Page, HJ, Stringer, SM
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Learning place cells, grid cells and invariances with excitatory and inhibitory plasticity [PDF]
Neurons in the hippocampus and adjacent brain areas show a large diversity in their tuning to location and head direction, and the underlying circuit mechanisms are not yet resolved.
Sprekeler, Henning +1 more
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Activity dependent feedback inhibition may maintain head direction signals in mouse presubiculum
Head direction is encoded by cells in the presubiculum, but the role of local circuitry in head direction encoding remains unknown. Here the authors demonstrate how a specific inhibitory neuron type, the Martinotti cell, together with excitatory ...
Jean Simonnet +7 more
doaj +1 more source
NEURAL MODELS OF HEAD-DIRECTION CELLS [PDF]
After a review of the purpose and biological background of Head Direction Cells, and existing models of them, we introduce an improved neural model that integrates visual flow information with the vestibular inputs found in earlier models. Simulation results using real video inputs are presented to explore and validate the new model, the evolutionary ...
PETER ZEIDMAN, JOHN A. BULLINARIA
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Complex spatial representations in the hippocampal formation and related cortical areas require input from the head direction system. However, a recurrent finding is that behavior apparently supported by these spatial representations does not appear to ...
Christopher M. Dillingham +1 more
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Planar cell polarity: Heading in the right direction [PDF]
AbstractEpithelial cells are patterned not only along their apical–basolateral axis, but also along the plane of the epithelial sheet; the latter event is regulated by the planar cell polarity (PCP) pathway. PCP regulates diverse outputs, such as the distal placement of a hair in all cells of the Drosophila wing, and convergent extension movements ...
openaire +2 more sources
Topography of Head Direction Cells in Medial Entorhinal Cortex [PDF]
Neural circuits in the medial entorhinal cortex (MEC) support translation of the external environment to an internal map of space, with grid and head direction neurons providing metrics for distance and orientation.We show here that head direction cells in MEC are organized topographically.
Giocomo, Lisa M. +5 more
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Signals about head orientation and movement in the vestibular periphery are fundamental to the sense of balance and motion, but difficult to measure systematically during head motion.
Masashi Tanimoto +2 more
doaj +1 more source
Place cells, head direction cells, and the learning of landmark stability [PDF]
Previous studies have shown that hippocampal place fields are controlled by the salient sensory cues in the environment, in that rotation of the cues causes an equal rotation of the place fields. We trained rats to forage for food pellets in a gray cylinder with a single salient directional cue, a white card covering 90 degrees of the cylinder wall ...
J J, Knierim +2 more
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How environment and self-motion combine in neural representations of space [PDF]
Estimates of location or orientation can be constructed solely from sensory information representing environmental cues. In unfamiliar or sensory-poor environments, these estimates can also be maintained and updated by integrating self-motion information.
Bicanski, A +3 more
core +1 more source

