Passive Transport Disrupts Directional Path Integration by Rat Head Direction Cells
نویسندگان
چکیده
منابع مشابه
Passive transport disrupts directional path integration by rat head direction cells.
A subset of neurons in the rat limbic system encodes head direction (HD) by selectively discharging when the rat points its head in a preferred direction in the horizontal plane. The preferred firing direction is sensitive to the location of landmark cues, as well as idiothetic or self-motion cues (i.e., vestibular, motor efference copy, proprioception, and optic flow). Previous studies have sh...
متن کاملAnticipatory time intervals of head-direction cells in the anterior thalamus of the rat: implications for path integration in the head-direction circuit.
Head-direction cells are neurons that signal a rat's directional heading in the horizontal plane. Head-direction cells in the anterior thalamus are anticipatory, so that their firing rate is better correlated with the rat's future head direction than with the present or past head direction. We recorded single-unit activity from head-direction cells in the anterior thalamus of freely moving rats...
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Some neurons encode information about the orientation or position of an animal, and can maintain their response properties in the absence of visual input. Examples include head direction cells in rats and primates, place cells in rats and spatial view cells in primates. 'Continuous attractor' neural networks model these continuous physical spaces by using recurrent collateral connections betwee...
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Head direction cells discharge selectively when the head of the animal is oriented in a specific direction. The goal of this study was to determine how sensory signals arising from passive rotations (e.g., triggered by vestibular stimulation and dynamic visual inputs) influence the responses of anterodorsal thalamic head direction cells in the absence of voluntary movement cues (e.g., motor com...
متن کاملSelf-organizing path integration using a linked continuous attractor and competitive network: path integration of head direction.
A key issue is how networks in the brain learn to perform path integration, that is update a represented position using a velocity signal. Using head direction cells as an example, we show that a competitive network could self-organize to learn to respond to combinations of head direction and angular head rotation velocity. These combination cells can then be used to drive a continuous attracto...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2003
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00346.2003