Search Results - "Chrobak, James J."

Septotemporal variation in dynamics of theta: speed and habituation by Hinman, James R, Penley, Stephanie C, Long, Lauren L, Escabí, Monty A, Chrobak, James J

“…Theta (6-12 Hz) field potentials and the synchronization (coherence) of these potentials present neural network indices of hippocampal physiology. Theta…”
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Theta variation and spatiotemporal scaling along the septotemporal axis of the hippocampus by Long, Lauren L, Bunce, Jamie G, Chrobak, James J

“…Hippocampal theta has been related to locomotor speed, attention, anxiety, sensorimotor integration and memory among other emergent phenomena. One difficulty…”
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Theta dynamics in rat: speed and acceleration across the Septotemporal axis by Long, Lauren L, Hinman, James R, Chen, Chi-Ming, Escabi, Monty A, Chrobak, James J

“…Theta (6-12 Hz) rhythmicity in the local field potential (LFP) reflects a clocking mechanism that brings physically isolated neurons together in time, allowing…”
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Entorhinal cortex of the monkey: VII. Intrinsic connections by Chrobak, James J., Amaral, David G.

“…The organization of intrinsic connections within the entorhinal cortex was investigated in Macaca fascicularis monkeys. Anterograde tracers (3H‐amino acids,…”
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Temporal structure in spatially organized neuronal ensembles: a role for interneuronal networks by Buzsáki, György, Chrobak, James J

“…Network oscillations are postulated to be instrumental for synchronizing the activity of anatomically distributed populations of neurons. Results from recent…”
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Novel space alters theta and gamma synchrony across the longitudinal axis of the hippocampus by Penley, Stephanie C, Hinman, James R, Long, Lauren L, Markus, Etan J, Escabí, Monty A, Chrobak, James J

“…Hippocampal theta (6-10 Hz) and gamma (25-50 Hz and 65-100 Hz) local field potentials (LFPs) reflect the dynamic synchronization evoked by inputs impinging…”
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High-Frequency Oscillations in the Output Networks of the Hippocampal-Entorhinal Axis of the Freely Behaving Rat by Chrobak, James J, Buzsaki, Gyorgy

“…Population bursts of the CA3 network, which occur during eating, drinking, awake immobility, and slow-wave sleep, produce a large field excitatory postsynaptic…”
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Theta and Gamma Coherence Along the Septotemporal Axis of the Hippocampus by Sabolek, Helen R, Penley, Stephanie C, Hinman, James R, Bunce, Jamie G, Markus, Etan J, Escabi, Monty, Chrobak, James J

“…1 Departments of Psychology and 2 Biomedical Engineering, University of Connecticut, Storrs, Connecticut Submitted 1 August 2008; accepted in final form 28…”
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Parvalbumin Loss Following Chronic Sub-Anesthetic NMDA Antagonist Treatment is Age-Dependent in the Hippocampus: Implications for Modeling NMDA Hypofunction by Honeycutt, Jennifer A., Chrobak, James J.

“…•Chronic ketamine decreases parvalbumin counts in 1-month-old rats, but not 6-month-old.•Adult rats show increased parvalbumin in dentate gyrus following…”
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Pharmacological and physiological characterization of the tremulous jaw movement model of parkinsonian tremor: potential insights into the pathophysiology of tremor by Collins-Praino, Lyndsey E, Paul, Nicholas E, Rychalsky, Kristen L, Hinman, James R, Chrobak, James J, Senatus, Patrick B, Salamone, John D

“…Tremor is a cardinal symptom of parkinsonism, occurring early on in the disease course and affecting more than 70% of patients. Parkinsonian resting tremor…”
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Spatial working memory deficits in male rats following neonatal hypoxic ischemic brain injury can be attenuated by task modifications by Smith, Amanda L, Hill, Courtney A, Alexander, Michelle, Szalkowski, Caitlin E, Chrobak, James J, Rosenkrantz, Ted S, Fitch, R Holly

“…Hypoxia-ischemia (HI; reduction in blood/oxygen supply) is common in infants with serious birth complications, such as prolonged labor and cord prolapse, as…”
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Effects of chronic ketamine on hippocampal cross‐frequency coupling: implications for schizophrenia pathophysiology by Michaels, Timothy I., Long, Lauren L., Stevenson, Ian H., Chrobak, James J., Chen, Chi‐Ming A.

“…Disrupted neuronal oscillations have been identified as a potentially important biomarker for the perceptual and cognitive symptoms of schizophrenia. Emerging…”
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Effects of the dopamine depleting agent tetrabenazine on detailed temporal parameters of effort‐related choice responding by Ren, Naxin, Carratala‐Ros, Carla, Ecevitoglu, Alev, Rotolo, Renee A., Edelstein, Gayle A., Presby, Rose E., Stevenson, Ian H., Chrobak, James J., Salamone, John D.

“…The dopamine‐depleting agent tetrabenazine alters effort‐based choice, suppressing food‐reinforced behaviors with high response requirements, while increasing…”
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Persistent spatial working memory deficits in rats with bilateral cortical microgyria by Fitch, R Holly, Breslawski, Heather, Rosen, Glenn D, Chrobak, James J

“…Anomalies of cortical neuronal migration (e.g., microgyria (MG) and/or ectopias) are associated with a variety of language and cognitive deficits in human…”
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Nucleus Accumbens Adenosine A2A Receptors Regulate Exertion of Effort by Acting on the Ventral Striatopallidal Pathway by Mingote, Susana, Font, Laura, Farrar, Andrew M, Vontell, Regina, Worden, Lila T, Stopper, Colin M, Port, Russell G, Sink, Kelly S, Bunce, Jamie G, Chrobak, James J, Salamone, John D

“…Goal-directed actions are sensitive to work-related response costs, and dopamine in nucleus accumbens is thought to modulate the exertion of effort in…”
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Ketamine disrupts theta synchrony across the septotemporal axis of the CA1 region of hippocampus by Hinman, James R, Penley, Stephanie C, Escabí, Monty A, Chrobak, James J

“…The hippocampal theta signal reflects moment-to-moment variation in the synchrony of synaptic input to hippocampal neurons. Consistent with the topography of…”
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Revealing Past Memories: Proactive Interference and Ketamine-Induced Memory Deficits by Chrobak, James J, Hinman, James R, Sabolek, Helen R

“…Memories of events that occur often are sensitive to interference from memories of similar events. Proactive interference plays an important and often…”
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Developmental Age Differentially Mediates the Calcium-Binding Protein Parvalbumin in the Rat: Evidence for a Selective Decrease in Hippocampal Parvalbumin Cell Counts by Honeycutt, Jennifer A, Keary Iii, Kevin M, Kania, Vanessa M, Chrobak, James J

“…Local circuit GABAergic neurons, including parvalbumin (PV)-containing basket cells, likely play a key role in the development, physiology, and pathology of…”
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Theta and gamma coherence across the septotemporal axis during distinct behavioral states by Penley, Stephanie C., Hinman, James R., Sabolek, Helen R., Escabí, Monty A., Markus, Etan J., Chrobak, James J.

“…Theta (4–12 Hz) and gamma (40–100 Hz) field potentials represent the interaction of synchronized synaptic input onto distinct neuronal populations within the…”
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Oral tremor induced by galantamine in rats: A model of the parkinsonian side effects of cholinomimetics used to treat Alzheimer's disease by Collins, Lyndsey E., Paul, Nicholas E., Abbas, Shams F., Leser, Chelsea E., Podurgiel, Samantha J., Galtieri, Daniel J., Chrobak, James J., Baqi, Younis, Müller, Christa E., Salamone, John D.

“…Anticholinesterases are the most common treatment for Alzheimer's disease, and, in recent years, a new group of cholinesterase inhibitors (i.e. rivastigmine,…”
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