Journal of Neurophysiology

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Receptive Properties of Mouse Sensory Neurons Innervating Hairy Skin
Journal of Neurophysiology - Tập 78 Số 4 - Trang 1841-1850 - 1997
Martin Koltzenburg, Cheryl L. Stucky, Gary R. Lewin
Koltzenburg, Martin, Cheryl L. Stucky, and Gary R. Lewin. Receptive properties of mouse sensory neurons innervating hairy skin. J. Neurophysiol. 78: 1841–1850, 1997. Using an in vitro nerve skin preparation and controlled mechanical or thermal stimuli, we analyzed the receptive properties of 277 mechanosensitive single primary afferents with myelinated ( n = 251) or unmyelinated ( n = 26) ...... hiện toàn bộ
Mammalian voltage-activated calcium channel currents are blocked by Pb2+, Zn2+, and Al3+
Journal of Neurophysiology - Tập 71 Số 4 - Trang 1491-1497 - 1994
Dietrich Büsselberg, Bettina Platt, D. Michael, D. O. Carpenter, H. L. Haas
1. The effects of the di- and trivalent trace metal cations, Pb2+, Zn2+, and Al3+, on voltage-activated calcium channel currents recorded from cultured rat dorsal root ganglion neurons were determined. 2. All three cations blocked transient and sustained components of the voltage-gated calcium channel currents elicited by a voltage jump from -80 mV to 0 mV, but the trace metals differed i...... hiện toàn bộ
Chemosensitivity of fine afferents from rat skin in vitro
Journal of Neurophysiology - Tập 63 Số 4 - Trang 887-901 - 1990
E. Lang, A. I. Novak, Peter W. Reeh, H. O. Handwerker
1. Properties of sensory receptors with slowly conducting nerve fibers (less than 10 m/s) were studied using a rat skin-saphenous nerve in vitro preparation where receptive fields of identified single units can be isolated and superfused at the corium side with defined chemical solutions. 2. With mechanical search stimuli, 150 slowly adapting units were identified, 88% C-fibers, and the r...... hiện toàn bộ
Optimal Integration of Gravity in Trajectory Planning of Vertical Pointing Movements
Journal of Neurophysiology - Tập 102 Số 2 - Trang 786-796 - 2009
Frédéric Crevecoeur, Jean‐Louis Thonnard, Philippe Lefèvre
The planning and control of motor actions requires knowledge of the dynamics of the controlled limb to generate the appropriate muscular commands and achieve the desired goal. Such planning and control imply that the CNS must be able to deal with forces and constraints acting on the limb, such as the omnipresent force of gravity. The present study investigates the effect of hypergravity i...... hiện toàn bộ
Bullfrog dorsal root ganglion cells having tetrodotoxin-resistant spikes are endowed with nicotinic receptors
Journal of Neurophysiology - Tập 62 Số 3 - Trang 657-664 - 1989
Kenichi Morita, Yoshimi Katayama
1. Intracellular recordings were made from bullfrog dorsal root ganglion (DRG) neurons in vitro. They were divided into three types, As, Ar, and C, according to their conduction velocity and their sensitivity to tetrodotoxin [TTX (less than or equal to 1 microM)]; an As neuron had a fast conduction velocity (13-50 m/s, mean = 31 m/s, n = 73) and TTX-sensitive sodium soma spikes: an Ar neu...... hiện toàn bộ
Control of unitary activities in cerebellothalamic pathway during wakefulness and synchronized sleep.
Journal of Neurophysiology - Tập 34 Số 3 - Trang 389-413 - 1971
Mircea Steriade, V. Apostol, G. Oakson
Induction of NMDA and GABAAReceptor-Mediated Ca2+Oscillations With KCC2 mRNA Downregulation in Injured Facial Motoneurons
Journal of Neurophysiology - Tập 89 Số 3 - Trang 1353-1362 - 2003
Hiroki Toyoda, Koji Ohno, Junko Yamada, Masahiko Ikeda, Akihito Okabe, Kohji Sato, Kenji Hashimoto, Atsuo Fukuda
To clarify the changes that occur in γ-aminobutyric acid type A (GABAA) receptor-mediated effects and contribute to alterations in the network activities after neuronal injury, we studied intracellular Ca2+concentration ([Ca2+]i) dynamics in a rat facial-nerve-transection model. In facial motoneurons, an el...... hiện toàn bộ
Focal Epileptogenesis in a Rat Model of Polymicrogyria
Journal of Neurophysiology - Tập 81 Số 1 - Trang 159-173 - 1999
Kimberle M. Jacobs, Bryan J. Hwang, David A. Prince
Jacobs, Kimberle M., Bryan J. Hwang, and David A. Prince. Focal epileptogenesis in a rat model of polymicrogyria. J. Neurophysiol. 81: 159–173, 1999. Polymicrogyria, a developmental cortical malformation associated with epilepsy, can be modeled in rats with a transcortical freeze lesion on the day of birth (P0) or P1. We have used field potential recordings to characterize the incidence, ...... hiện toàn bộ
Alterations in NMDA Receptors in a Rat Model of Cortical Dysplasia
Journal of Neurophysiology - Tập 83 Số 1 - Trang 315-321 - 2000
R. Anthony DeFazio, John J. Hablitz
Recent studies have demonstrated an important role for the N-methyl-d-aspartate receptor (NMDAR) in epilepsy. NMDARs have also been shown to play a critical role in hyperexcitability associated with several animal models of human epilepsy. Using whole-cell voltage clamp recordings in brain slices, we studied evoked paroxysmal discharges in the freeze-lesion model of neocortical microgyria...... hiện toàn bộ
Postnatal maturation of the GABAergic system in rat neocortex
Journal of Neurophysiology - Tập 65 Số 2 - Trang 247-263 - 1991
Heiko J. Luhmann, D. A. Prince
1. The postnatal maturation of intracortical inhibitory circuitry and the development of responses to applied gamma-aminobutyric acid (GABA) and baclofen were studied in pyramidal and nonpyramidal neurons from layers II and III of the rat primary somatosensory and primary visual cortex, in vitro. 2. Depolarizing spontaneous inhibitory postsynaptic potentials (IPSPs) could be recorded in a...... hiện toàn bộ
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