Electrical interaction between motoneurons and afferent terminals in cat spinal cord.

abstract：:It is not known how changes in skin mechanics affect the responses of cutaneous mechanoreceptors in the finger pads to compression forces. We used venous occlusion to change the stiffness of the fingers and investigated whether this influenced the firing of low-threshold mechanoreceptors to surfaces of differing stiff...

journal_title：Journal of neurophysiology

authors： Hudson KM,Condon M,Ackerley R,McGlone F,Olausson H,Macefield VG,Birznieks I

更新日期：2015-10-01 00:00:00

abstract：:The effects of neuronal density on morphological and functional attributes of the evolving networks were studied in cultured dissociated hippocampal neurons. Plating at different densities affected connectivity among the neurons, such that sparse networks exhibited stronger synaptic connections between pairs of record...

journal_title：Journal of neurophysiology

authors： Ivenshitz M,Segal M

更新日期：2010-08-01 00:00:00

abstract：:1. Many cells in the superior temporal sulcus (STS) of the monkey that represent the foveal region of the visual field discharge during pursuit eye movements. Damage to these areas produces a deficit in the maintenance of pursuit eye movements when the target towards the side of the brain with the lesion. In the prese...

journal_title：Journal of neurophysiology

authors： Komatsu H,Wurtz RH

更新日期：1989-07-01 00:00:00

abstract：:1. The present study was designed to determine the effects of microstimulation of the medullary reticular formation (MRF) on the locomotor activity of the cat in the absence of phasic afferent feedback from the limbs. To this end, both short (33 ms) and long (200 ms) trains of stimuli (trains of 0.2-ms pulses at 330 H...

journal_title：Journal of neurophysiology

authors： Perreault MC,Rossignol S,Drew T

更新日期：1994-01-01 00:00:00

abstract：:To clarify the role of cholinergic inputs to the intermediate layer of the superior colliculus (SC), we examined the effect of microinjection of nicotine into the SC on visually guided saccades in macaque monkeys. After injection of 0.4-2 microl of 1-100 mM nicotine into the SC, frequency of extremely short latency sa...

journal_title：Journal of neurophysiology

authors： Aizawa H,Kobayashi Y,Yamamoto M,Isa T

更新日期：1999-09-01 00:00:00

abstract：:During locomotion, contacting an obstacle generates a coordinated response involving flexion of the stimulated leg and activation of extensors contralaterally to ensure adequate support and forward progression. Activation of motoneurons innervating contralateral muscles (i.e., crossed extensor reflex) has always been ...

journal_title：Journal of neurophysiology

authors： Frigon A,Rossignol S

更新日期：2008-02-01 00:00:00

abstract：:L-type calcium channels couple membrane depolarization in neurons to numerous processes including gene expression, synaptic efficacy, and cell survival. To establish the contribution of L-type calcium channels to various signaling cascades, investigators have relied on their unique pharmacological sensitivity to dihyd...

journal_title：Journal of neurophysiology

authors： Lipscombe D,Helton TD,Xu W

更新日期：2004-11-01 00:00:00

abstract：:Arrays of closely spaced quartz-insulated, platinum-tungsten microelectrodes are widely used to obtain acute recordings from chronically prepared subjects. These electrodes have excellent recording characteristics and can be fabricated to a wide variety of tip specifications. Typically, in such experiments, electrodes...

journal_title：Journal of neurophysiology

authors： Swadlow HA,Bereshpolova Y,Bezdudnaya T,Cano M,Stoelzel CR

更新日期：2005-05-01 00:00:00

abstract：:The amygdala plays a crucial role in evaluating the emotional significance of stimuli and in transforming the results of this evaluation into appropriate autonomic responses. Lesion and stimulation studies suggest involvement of the amygdala in the generation of the skin conductance response (SCR), which is an indirec...

journal_title：Journal of neurophysiology

authors： Laine CM,Spitler KM,Mosher CP,Gothard KM

更新日期：2009-04-01 00:00:00

abstract：:Differential Modulation by Copper and Zinc of P2X2 and P2X4 Receptor Function. The modulation by Cu2+ and Zn2+ of P2X2 and P2X4 receptors expressed in Xenopus oocytes was studied with the two-electrode, voltage-clamp technique. In oocytes expressing P2X2 receptors, both Cu2+ and Zn2+, in the concentration range 1-130 ...

journal_title：Journal of neurophysiology

authors： Xiong K,Peoples RW,Montgomery JP,Chiang Y,Stewart RR,Weight FF,Li C

更新日期：1999-05-01 00:00:00

abstract：:We have shown that some neural activity is required for the maintenance of long-term potentiation (LTP) at visual cortical inhibitory synapses. We tested whether this was also the case in N-methyl-d-aspartate (NMDA) receptor-independent LTP of excitatory connections in layer 2/3 cells of developing rat visual cortex. ...

journal_title：Journal of neurophysiology

authors： Liu HN,Kurotani T,Ren M,Yamada K,Yoshimura Y,Komatsu Y

更新日期：2004-08-01 00:00:00

abstract：:1. The electrophysiological and pharmacological properties of slow afterpotentials in large layer V neurons from cat sensorimotor cortex were studied in an in vitro slice preparation using intracellular recording and single-microelectrode voltage clamp. These properties were used to assess the role of afterpotential m...

journal_title：Journal of neurophysiology

authors： Schwindt PC,Spain WJ,Foehring RC,Chubb MC,Crill WE

更新日期：1988-02-01 00:00:00

abstract：:Serotonergic fibers broadly innervate the thalamus and may influence the sleep wake cycle, attention, and other processes through modulation of neurons in this structure. However, the actions of serotonin in the dorsal thalamus have been investigated in detail only in the dorsal lateral geniculate nucleus. In the pres...

journal_title：Journal of neurophysiology

authors： Monckton JE,McCormick DA

更新日期：2002-04-01 00:00:00

abstract：:1. The effects of dorsal raphe (DR) stimulation on neural activity in the rat lateral hypothalamic area (LHA), including specific glucose-sensitive neurons, were investigated by extracellular and intracellular recording in vivo, and the neurotransmitters involved were determined. 2. In 67 adult male anesthetized rats,...

journal_title：Journal of neurophysiology

authors： Kai Y,Oomura Y,Shimizu N

更新日期：1988-08-01 00:00:00

abstract：:Despite its widespread use, high-resolution imaging with multiphoton microscopy to record neuronal signals in vivo is limited to the surface of brain tissue because of limited light penetration. Moreover, most imaging studies do not simultaneously record electrical neural activity, which is, however, crucial to unders...

journal_title：Journal of neurophysiology

authors： Hirai Y,Nishino E,Ohmori H

更新日期：2015-06-01 00:00:00

abstract：:Fast inhibitory synaptic transmission in the medial vestibular nucleus (MVN) is mediated by GABA(A) receptors (GABA(A)Rs) and glycine receptors (GlyRs). To assess their relative contribution to inhibition in the MVN, we recorded miniature inhibitory postsynaptic currents (mIPSCs) in physiologically characterized type ...

journal_title：Journal of neurophysiology

authors： Camp AJ,Callister RJ,Brichta AM

更新日期：2006-05-01 00:00:00

abstract：:In the region of the ventral respiratory group in brain stem slices from neonatal rats, intracellular pH (pHi) and membrane currents (I(m)) or potentials were measured in neurons dialyzed with the pH-sensitive dye 2',7'-bis-carboxyethyl-5(6)-carboxyfluorescein. Currents and increases in membrane conductance (g(m)) dur...

journal_title：Journal of neurophysiology

authors： Lückermann M,Trapp S,Ballanyi K

更新日期：1997-04-01 00:00:00

abstract：:Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are responsible for the functional hyperpolarization-activated current (I(h)) in dorsal root ganglion (DRG) neurons, playing an important role in pain processing. We found that the known analgesic loperamide inhibited I(h) channels in rat DRG neurons. ...

journal_title：Journal of neurophysiology

authors： Vasilyev DV,Shan Q,Lee Y,Mayer SC,Bowlby MR,Strassle BW,Kaftan EJ,Rogers KE,Dunlop J

更新日期：2007-05-01 00:00:00

abstract：:Long-term depression (LTD) of synaptic transmission can be induced by several mechanisms, one thought to involve Ca2+-dependent activation of postsynaptic nitric oxide (NO) synthase and subsequent diffusion of NO to the presynaptic terminal. We used the stable NO donor S-nitroso-N-acetylpenicillamine (SNAP) to study t...

journal_title：Journal of neurophysiology

authors： Reyes-Harde M,Potter BV,Galione A,Stanton PK

更新日期：1999-09-01 00:00:00

abstract：:Pyramidal cells and interneurons in rat prefrontal cortical slices exhibit subthreshold oscillations when depolarized by constant current injection. For both types of neurons, the frequencies of these oscillations for current injection just below spike threshold were 2--10 Hz. Above spike threshold, however, the subth...

journal_title：Journal of neurophysiology

authors： Fellous JM,Houweling AR,Modi RH,Rao RP,Tiesinga PH,Sejnowski TJ

更新日期：2001-04-01 00:00:00

abstract：:We previously showed that, when observers watch an actor performing a predictable block-stacking task, the coordination between the observer's gaze and the actor's hand is similar to the coordination between the actor's gaze and hand. Both the observer and the actor direct gaze to forthcoming grasp and block landing s...

journal_title：Journal of neurophysiology

authors： Rotman G,Troje NF,Johansson RS,Flanagan JR

更新日期：2006-09-01 00:00:00

abstract：:1. We recorded local field potentials in the parafoveal representation in the primary visual cortex of anesthetized and paralyzed macaque monkeys with a multicontact electrode that provided for sampling of neural activity at 16 sites along a vertical penetration. Differential recordings at adjacent contacts were trans...

journal_title：Journal of neurophysiology

authors： Victor JD,Purpura K,Katz E,Mao B

更新日期：1994-11-01 00:00:00

abstract：:Adult rats were submitted to a complete spinal cord transection at T9 level to address peripheral and spinal reflex changes in the caudal lumbar segments. Compound muscle and nerve action potentials decreased in amplitude and increased their duration between 14 and 30 days but recovered to near to normal values therea...

journal_title：Journal of neurophysiology

authors： Valero-Cabré A,Forés J,Navarro X

更新日期：2004-06-01 00:00:00

abstract：:The purpose of this study was to compare the discharge characteristics of motor units recruited during an isometric contraction that was sustained with the elbow flexor muscles by older adults at target forces that were less than the recruitment threshold force of each isolated motor unit. The discharge times of 27 si...

journal_title：Journal of neurophysiology

authors： Pascoe MA,Holmes MR,Enoka RM

更新日期：2011-02-01 00:00:00

abstract：:1. Extracellular and intracellular recordings from an isolated thoraco-abdominal preparation of the crayfish, Pacifastacus leniusculus, demonstrate that the swimmeret and the abdominal positioning systems can at times be spontaneously coordinated with each other. 2. Two forms of coordination were encountered between t...

journal_title：Journal of neurophysiology

authors： Chrachri A,Neil DM

更新日期：1993-05-01 00:00:00

abstract：:The nucleus tractus solitarii (nTS) is the initial central termination site for visceral afferents and is important for modulation and integration of multiple reflexes including cardiorespiratory reflexes. Glutamate is the primary excitatory neurotransmitter in the nTS and is removed from the extracellular milieu by e...

journal_title：Journal of neurophysiology

authors： Matott MP,Ruyle BC,Hasser EM,Kline DD

更新日期：2016-03-01 00:00:00

abstract：:1. Using the patch-clamp technique, we investigated whether the glutamate-elicited current in mechanically isolated cone photoreceptors from the salamander retina is generated by a Cl- channel or a glutamate transporter. 2. The current reversed near the equilibrium potential for Cl-, was decreased by three Cl- channel...

journal_title：Journal of neurophysiology

authors： Picaud SA,Larsson HP,Grant GB,Lecar H,Werblin FS

更新日期：1995-10-01 00:00:00

abstract：:Effective connectivity between cortical areas decreases during slow wave sleep. This decline can be observed in the reduced interareal propagation of activity evoked either directly in cortex by transcranial magnetic stimulation (TMS) or by sensory stimulation. We present here a large-scale model of the thalamocortica...

journal_title：Journal of neurophysiology

authors： Esser SK,Hill S,Tononi G

更新日期：2009-10-01 00:00:00

abstract：:Motor-unit synchronization, which is a measure of the near simultaneous discharge of action potentials by motor units, has the potential to influence spike-triggered average force and the steadiness of a low-force isometric contraction. The purpose of the study was to estimate the contribution of motor-unit synchroniz...

journal_title：Journal of neurophysiology

authors： Semmler JG,Steege JW,Kornatz KW,Enoka RM

更新日期：2000-07-01 00:00:00

abstract：:The performance of adaptive behavior relies on continuous sensory feedback to produce relevant modifications to central motor patterns. The femoral chordotonal organ (FeCO) of the legs of the desert locust monitors the movements of the tibia about the femoro-tibial joint. A ventral midline population of spiking local ...

journal_title：Journal of neurophysiology

authors： Vidal-Gadea AG,Jing XJ,Simpson D,Dewhirst OP,Kondoh Y,Allen R,Newland PL

更新日期：2010-02-01 00:00:00