Search Results - "Sharp, P E"

Spatial correlates of firing patterns of single cells in the subiculum of the freely moving rat by Sharp, PE, Green, C

“…Hippocampal lesions cause spatial learning deficits, and single hippocampal cells show location-specific firing patterns, known as place fields. This suggests…”
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Complimentary roles for hippocampal versus subicular/entorhinal place cells in coding place, context, and events by Sharp, Patricia E.

“…At least two important questions are posed by the existence of hippocampal place cells. The first of these has to do with how the complex, properties exhibited…”
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Subicular cells generate similar spatial firing patterns in two geometrically and visually distinctive environments: Comparison with hippocampal place cells by Sharp, Patricia E.

“…Cells in both the hippocampus and the subiculum show location related firing patterns, so that the momentary firing rate of a cell is related to the spatial…”
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Characteristics of MR Neuroimaging Services Billed by Radiologists versus Nonradiologists by Sharp, P E, Lall, N U, Hughes, D R, Harkey, P P, Duszak, Jr, R

“…Although most neuroimaging examinations are interpreted by radiologists, many nonradiologists provide interpretation services. We studied day of the week, site…”
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Subicular Place Cells Expand or Contract Their Spatial Firing Pattern to Fit the Size of the Environment in an Open Field but Not in the Presence of Barriers: Comparison With Hippocampal Place Cells by Sharp, Patricia E

“…Cells in the hippocampus and subiculum signal spatial location in fundamentally different ways. Specifically, hippocampal cells show environment-specific…”
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Visual and Vestibular Influences on Head-Direction Cells in the Anterior Thalamus of the Rat by Blair, Hugh T, Sharp, Patricia E

“…As a rat navigates through space, head-direction cells provide an ongoing signal of its momentary directional heading. This directional signal is thought to be…”
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Behavioural responses of Mallorcan midwife toad tadpoles to natural and unnatural snake predators by GRIFFITHS, RICHARD A., SCHLEY, LAURENT, SHARP, PENNY E., DENNIS, JAYNE L., ROMÁN, ALVARO

“…The activity levels of Mallorcan midwife toad tadpoles,Alytes muletensis, were compared in two natural torrent pools which differed in their use by predatory…”
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Neural network modeling of the hippocampal formation spatial signals and their possible role in navigation: A modular approach by Sharp, Patricia E., Blair, Hugh T., Brown, Michael

“…Cells throughout the hippocampal formation show striking spatial firing correlates as a rat navigates through space. These cells are thought to play a critical…”
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The anatomical and computational basis of the rat head-direction cell signal by Sharp, Patricia E, Blair, Hugh T, Cho, Jeiwon

“…As a rat navigates through space, neurons called head-direction (HD) cells provide a signal of the rat's momentary directional heading. Although partly guided…”
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Movement-related correlates of single cell activity in the interpeduncular nucleus and habenula of the rat during a pellet-chasing task by Sharp, Patricia E., Turner-Williams, Shawnda, Tuttle, Sarah

“…The habenula and interpeduncular nucleus (IPN) are part of a dorsal diencephalic conduction system which receives input from cholinergic, striatal, and…”
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Firing properties of hippocampal neurons in a visually symmetrical environment: contributions of multiple sensory cues and mnemonic processes by Sharp, PE, Kubie, JL, Muller, RU

“…The location-specific firing of hippocampal place cells can easily be brought under the control of experimenter-defined cues. Nevertheless, there is evidence…”
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Anticipatory head direction signals in anterior thalamus: evidence for a thalamocortical circuit that integrates angular head motion to compute head direction by Blair, HT, Sharp, PE

“…Several regions in the rat brain contain neurons known as head-direction cells, which fire only when the rat's head is facing in a specific direction…”
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Angular Velocity and Head Direction Signals Recorded From the Dorsal Tegmental Nucleus of Gudden in the Rat: Implications for Path Integration in the Head Direction Cell Circuit by Sharp, Patricia E, Tinkelman, Amanda, Cho, Jeiwon

“…When a rat navigates through space, head direction (HD) cells provide an ongoing signal of the rat's directional heading. It is thought that these cells rely,…”
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Role of the Lateral Mammillary Nucleus in the Rat Head Direction Circuit: A Combined Single Unit Recording and Lesion Study by Blair, Hugh T, Cho, Jeiwon, Sharp, Patricia E

“…We recorded head direction (HD) cells from the lateral mammillary nucleus (LMN) and anterior thalamus (ATN) of freely behaving rats and also made bilateral…”
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The Anterior Thalamic Head-Direction Signal Is Abolished by Bilateral But Not Unilateral Lesions of the Lateral Mammillary Nucleus by Blair, Hugh T, Cho, Jeiwon, Sharp, Patricia E

“…Head-direction (HD) cells are neurons that signal a rat's directional heading in the horizontal plane. Evidence suggests that the lateral mammillary nucleus…”
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Multiple Spatial/Behavioral Correlates for Cells in the Rat Postsubiculum: Multiple Regression Analysis and Comparison to Other Hippocampal Areas by Sharp, P E

“…Head direction cells in the rat postsubiculum fire in relation to the momentary directional heading of the animal, with each cell firing only when the animal…”
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Influences of vestibular and visual motion information on the spatial firing patterns of hippocampal place cells by Sharp, PE, Blair, HT, Etkin, D, Tzanetos, DB

“…Hippocampal place cells show location-specific firing as animals locomote in an environment. A possible explanation for these place fields is that each cell is…”
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Enhancement of hippocampal field potentials in rats exposed to a novel, complex environment by Sharp, P E, McNaughton, B L, Barnes, C A

“…The hippocampus plays a crucial role in place learning in rodents and also exhibits a long-term enhancement of synaptic strength and postsynaptic excitability…”
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Effects of Aging on Environmental Modulation of Hippocampal Evoked Responses by Sharp, P. E, Barnes, C. A, McNaughton, B. L

“…Evoked responses in the dentate gyrus of the hippocampal formation undergo a long-term enhancement following high-frequency stimulation of the perforant…”
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Bromide toxicosis (bromism) in a dog treated with potassium bromide for refractory seizures by Yohn, S E, Morrison, W B, Sharp, P E

“…A 4-year-old German Shepherd Dog was evaluated because of chronic hind limb lameness and recurrent seizures. Diagnostic evaluation of the dog confirmed…”
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