Results 181 to 190 of about 365 (207)
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A Neuromorphic VLSI Head Direction Cell System
IEEE Transactions on Circuits and Systems I: Regular Papers, 2011The head direction (HD) cell system in the brain of mammals is thought to be part of the neural circuitry supporting their spatial navigation capabilities. In this paper we present a neuromorphic very large scale integration system that models the operation of the HD system.
Tarek M. Massoud, Timothy K. Horiuchi
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Avian navigation: Head direction cells in the quail hippocampus
Current Biology, 2021Birds are experts in many behaviors akin to those in mammals that are known to involve the hippocampus, yet the avian hippocampus is still poorly understood. A new study finds head-direction cells, but not place cells, in the hippocampal formation of quails.
Aylin, Apostel, Jonas, Rose
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Heading‐vector navigation based on head‐direction cells and path integration
Hippocampus, 2008AbstractInsect navigation is guided by heading vectors that are computed by path integration. Mammalian navigation models, on the other hand, are typically based on map‐like place representations provided by hippocampal place cells. Such models compute optimal routes as a continuous series of locations that connect the current location to a goal.
John L, Kubie, André A, Fenton
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Cue control and head direction cells.
Behavioral Neuroscience, 1998Previous research has shown that head direction (HD) cells in both the anterior dorsal thalamus (ADN) and the postsubiculum (PoS) in rats discharge in relation to familiar, visual landmarks in the environment. This study assessed whether PoS and ADN HD cells would be similarly responsive to nonvisual or unfamiliar environmental cues. After visual input
J P, Goodridge +4 more
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Calibration of the head direction network: a role for symmetric angular head velocity cells
Journal of Computational Neuroscience, 2010Continuous attractor networks require calibration. Computational models of the head direction (HD) system of the rat usually assume that the connections that maintain HD neuron activity are pre-wired and static. Ongoing activity in these models relies on precise continuous attractor dynamics.
Peter Stratton +2 more
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A self-organizing VQ model of head-direction cells and grid cells
Artificial Life and Robotics, 2008In this article, we propose a three-layered self-organizing model to extract the head direction and position of a moving object separately. The model consists of three layers, each of which is a self-organizing vector quantization (VQ) model. The second layer receives inhibitory input from the first, and the third layer receives inhibitory input from ...
Naoki Oshiro +2 more
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The Discovery of Head Direction Cells: A Personal Account
HippocampusABSTRACTThis article is my recollection of events surrounding the discovery of head direction (HD) cells by Jim Ranck in 1984 and the first journal publications 6 years later. Ranck first described the fundamental properties of HD cells qualitatively in a Society for Neuroscience abstract (1984) and in the proceedings to a conference.
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Sensory and behavioral modulation of thalamic head-direction cells
Nature NeuroscienceHead-direction (HD) neurons are thought to exclusively encode directional heading. In awake mice, we found that sensory stimuli evoked robust short-latency responses in thalamic HD cells, but not in non-HD neurons. The activity of HD cells, but not that of non-HD neurons, was tightly correlated to brain-state fluctuations and dynamically modulated ...
Eduardo Blanco-Hernández +3 more
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Sensory Determinants of Head Direction Cell Activity
2002Other portions of this volume provide a description of the fundamental properties of Head Direction (HD) cells and the brain structures that are important in processing this directional coding (see the Preface and Chapter 9). This chapter focuses on the types of sensory information that affect HD cell activity.
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On the absence or presence of 3D tuned head direction cells in rats: a review and rebuttal
Journal of Neurophysiology, 2020Jeffrey Taube, Michael E Shinder
exaly