Search Results - "Hampson, R. E."

Neural correlates of fast pupil dilation in nonhuman primates: Relation to behavioral performance and cognitive workload by Hampson, R.E., Opris, Ioan, Deadwyler, S.A.

“…Pupil dilation in humans has been previously shown to correlate with cognitive workload, whereby increased frequency of dilation is associated with increased…”
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The encoding of cocaine vs. natural rewards in the striatum of nonhuman primates: categories with different activations by Opris, I, Hampson, R.E, Deadwyler, S.A

“…Abstract The behavioral and motivational changes that result from use of abused substances depend upon activation of neuronal populations in the reward centers…”
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The synthetic cannabinoid HU210 induces spatial memory deficits and suppresses hippocampal firing rate in rats by Robinson, L, Goonawardena, A V, Pertwee, R G, Hampson, R E, Riedel, G

“…Background and purpose: Previous work implied that the hippocampal cannabinoid system was particularly important in some forms of learning, but direct evidence…”
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Cannabinoid physiology and pharmacology: 30 years of progress by Howlett, Allyn C., Breivogel, Christopher S., Childers, Steven R., Deadwyler, Samuel A., Hampson, Robert E., Porrino, Linda J.

“…Δ 9-Tetrahydrocannabinol from Cannabis sativa is mimicked by cannabimimetic analogs such as CP55940 and WIN55212-2, and antagonized by rimonabant and SR144528,…”
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Cannabinoids Reveal the Necessity of Hippocampal Neural Encoding for Short-Term Memory in Rats by Hampson, Robert E, Deadwyler, Sam A

“…The memory-disruptive effects of Delta(9)-tetrahydrocannabinol (Delta(9)-THC) and the synthetic cannabinoid WIN 55,212-2 (WIN-2) were assessed in rats exposed…”
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Distribution of spatial and nonspatial information in dorsal hippocampus by Deadwyler, Sam A, Hampson, Robert E, Simeral, John D

“…The hippocampus in the mammalian brain is required for the encoding of current and the retention of past experience. Previous studies have shown that the…”
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Cannabinoids modulate voltage sensitive potassium A-current in hippocampal neurons via a cAMP-dependent process by Deadwyler, S A, Hampson, R E, Mu, J, Whyte, A, Childers, S

“…Previous studies have shown that cannabinoid receptor analogs increase voltage-dependent potassium A-current (IA) in cultured hippocampal cells. Because…”
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Effects of delta-9-tetrahydrocannabinol on delayed match to sample performance in rats: alterations in short-term memory associated with changes in task specific firing of hippocampal cells by Heyser, C J, Hampson, R E, Deadwyler, S A

“…The effects of delta-9-tetrahydrocannabinol (delta-9-THC) were studied during performance of a delayed match to sample (DMTS) task in rats. Correlated…”
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Hippocampal ensemble activity during spatial delayed-nonmatch-to-sample performance in rats by Deadwyler, SA, Bunn, T, Hampson, RE

“…Multiple-cell recording from specially designed arrays of microwire electrodes allowed analysis of anatomically defined ensemble activity from 10 different…”
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Behaviorally relevant endocannabinoid action in hippocampus: dependence on temporal summation of multiple inputs by Zhuang, S, Hampson, R. E, Deadwyler, S. A

“…Endocannabinoids have been shown to mediate depolarization-induced suppression of GABAergic inhibition (DSI), possibly via release and retrograde diffusion…”
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Reward, memory and substance abuse: functional neuronal circuits in the nucleus accumbens by Deadwyler, Sam A, Hayashizaki, Seiji, Cheer, Joseph, Hampson, Robert E

“…The firing patterns of neurons in the nucleus accumbens (NA) are examined and discussed with respect to different types of rewards and reward conditions…”
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Functional Significance of Cannabinoid-Mediated, Depolarization-Induced Suppression of Inhibition (DSI) in the Hippocampus by Hampson, Robert E, Zhuang, Shou-yuan, Weiner, Jeff L, Deadwyler, Sam A

“…Wake Forest University Health Sciences, Department of Physiology and Pharmacology, Winston-Salem, North Carolina 27157 Submitted 23 December 2002; accepted in…”
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On parsing the neural code in the prefrontal cortex of primates using principal dynamic modes by Marmarelis, V. Z., Shin, D. C., Song, D., Hampson, R. E., Deadwyler, S. A., Berger, T. W.

“…Nonlinear modeling of multi-input multi-output (MIMO) neuronal systems using Principal Dynamic Modes (PDMs) provides a novel method for analyzing the…”
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Hippocampal place cells: stereotypy and plasticity by Breese, CR, Hampson, RE, Deadwyler, SA

“…Hippocampal complex spike cells were recorded during exploration for water delivered to cups located in various regions of an elevated platform. Place fields…”
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Mechanisms underlying cognitive enhancement and reversal of cognitive deficits in nonhuman primates by the ampakine CX717 by Hampson, R. E., España, R. A., Rogers, G. A., Porrino, L. J., Deadwyler, S. A.

“…Rationale Performance of cognitive tasks in nonhuman primates (NHPs) requires specific brain regions to make decisions under different degrees of difficulty or…”
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The significance of neural ensemble codes during behavior and cognition by DEADWYLER, S. A, HAMPSON, R. E

“…The development of techniques to record from populations of neurons has made it possible to ask questions concerning the encoding of task-relevant information…”
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Hippocampal Cell Firing Correlates of Delayed-Match-to-Sample Performance in the Rat by Hampson, Robert E, Heyser, Charles J, Deadwyler, Sam A

“…Hippocampal CA1 and CA3 neurons were recorded in rats performing a delayed-match-to-sample (DMTS) task. Complex spike cells showed significant firing peaks…”
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Ensemble Activity and Behavior: What's the Code? by Deadwyler, Sam A., Hampson, Robert E.

“…The brain represents information in a distributed code, carried by action potentials in ensembles of neurons. Ensemble activity can now be monitored by…”
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Firing patterns of nucleus accumbens neurons during cocaine self-administration in rats by Carelli, R M, King, V C, Hampson, R E, Deadwyler, S A

“…The firing patterns of neurons in the nucleus accumbens (NA) were recorded in rats trained to self-administer cocaine via response contingent intravenous drug…”
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Design of optimal stimulation patterns for neuronal ensembles based on Volterra-type hierarchical modeling by Marmarelis, V Z, Shin, D C, Hampson, R E, Deadwyler, S A, Song, D, Berger, T W

“…This paper presents a general methodology for the optimal design of stimulation patterns applied to neuronal ensembles in order to elicit a desired effect. The…”
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