Locomotor training improves reciprocal and nonreciprocal inhibitory control of soleus motoneurons in human spinal cord injury.

abstract：:1. Reflex responses were elicited in muscles that act at the ankle by electrical stimulation of low-threshold afferents from the foot in human subjects who were reclining supine. During steady voluntary contractions, stimulus trains (5 pulses at 300 Hz) were delivered at two intensities to the sural nerve (1.2-4.0 tim...

journal_title：Journal of neurophysiology

authors： Aniss AM,Gandevia SC,Burke D

更新日期：1992-05-01 00:00:00

abstract：:Neurons of the avian nucleus laminaris (NL) compute the interaural time difference (ITD) by detecting coincident arrivals of binaural signals with submillisecond accuracy. The cellular mechanisms for this temporal precision have long been studied theoretically and experimentally. The myelinated axon initial segment in...

journal_title：Journal of neurophysiology

authors： Ashida G,Abe K,Funabiki K,Konishi M

更新日期：2007-03-01 00:00:00

abstract：:Traditional electrophysiological research on invertebrate photoreceptors has been conducted in vivo, using intracellular recordings from intact compound eyes. The only exception used to be Drosophila melanogaster, which was exhaustively studied by both intracellular recording and patch-clamp methods. Recently, several...

journal_title：Journal of neurophysiology

authors： Frolov RV

更新日期：2016-08-01 00:00:00

abstract：:Although frequency-dependent short-term presynaptic plasticity has been of long-standing interest, most studies have emphasized modulation of the synchronous, phasic component of transmitter release, most evident with a single or a few presynaptic stimuli. Asynchronous transmitter release, vesicle fusion not closely t...

journal_title：Journal of neurophysiology

authors： Chang CY,Mennerick S

更新日期：2010-01-01 00:00:00

abstract：:In most of the bulbospinal respiratory neurons, threshold depolarization increased during the early period of their spontaneous burst discharge but decreased again at the end of a burst. In some vagal respiratory neurons, however, threshold depolarization increased steadily until the very end of their discharge period...

journal_title：Journal of neurophysiology

authors： Richter DW,Heyde F

更新日期：1975-09-01 00:00:00

abstract：:To gain further insight into the neural mechanisms for different forms of quadrupedal walking, data on postural orientation, hindlimb kinematics, and motor patterns were assessed for four grades of downslope walking, from 25% (14 degrees slope) to 100% (45 degrees), and compared with data from level and downslope walk...

journal_title：Journal of neurophysiology

authors： Smith JL,Carlson-Kuhta P,Trank TV

更新日期：1998-04-01 00:00:00

abstract：:Is faster or stronger sniffing important for the olfactory system? Odorant molecules are captured by sniffing. The features of sniffing constrain both the temporality and intensity of the input to the olfactory structures. In this context, it is clear that variations in both the sniff frequency and flow rate have a ma...

journal_title：Journal of neurophysiology

authors： Courtiol E,Hegoburu C,Litaudon P,Garcia S,Fourcaud-Trocmé N,Buonviso N

更新日期：2011-12-01 00:00:00

abstract：:Adult neuronal phenotype is maintained, at least in part, by the sensitivity of individual neurons to a specific selection of neurotrophic factors and the availability of such factors in the neurons' environment. Nerve growth factor (NGF) increases the functional expression of Na(+) channel currents (I(Na)) and both N...

journal_title：Journal of neurophysiology

authors： Ford CP,Wong KV,Lu VB,Posse de Chaves E,Smith PA

更新日期：2008-03-01 00:00:00

abstract：:Secondary hyperalgesia is believed to be a key feature of "central sensitization" and is characterized by enhanced pain to mechanical nociceptive stimuli. The aim of the present study was to characterize, using EEG, the effects of pinprick stimulation intensity on the magnitude of pinprick-elicited brain potentials [e...

journal_title：Journal of neurophysiology

authors： van den Broeke EN,Mouraux A,Groneberg AH,Pfau DB,Treede RD,Klein T

更新日期：2015-11-01 00:00:00

abstract：:Functional magnetic resonance imaging blood-oxygenation-level-dependent (BOLD) signal increases (activations) and BOLD signal decreases ("deactivations") were compared in six healthy volunteers during galvanic vestibular (mastoid) and galvanic cutaneous (neck) stimulation in order to differentiate vestibular from ocul...

journal_title：Journal of neurophysiology

authors： Bense S,Stephan T,Yousry TA,Brandt T,Dieterich M

更新日期：2001-02-01 00:00:00

abstract：:It is often suggested that decisions are made when accumulated sensory information reaches a fixed accuracy criterion. This is supported by many studies showing a gradual build up of neural activity to a threshold. However, the proposal that this build up is caused by sensory accumulation is challenged by findings tha...

journal_title：Journal of neurophysiology

authors： Thura D,Beauregard-Racine J,Fradet CW,Cisek P

更新日期：2012-12-01 00:00:00

abstract：:The objectives of this study were to probe the contribution of spinal neuron persistent sodium conductances to reflex hyperexcitability in human chronic spinal cord injury. The intrinsic excitability of spinal neurons provides a novel target for medical intervention. Studies in animal models have shown that persistent...

journal_title：Journal of neurophysiology

authors： Theiss RD,Hornby TG,Rymer WZ,Schmit BD

更新日期：2011-06-01 00:00:00

abstract：:During rhythmic behaviors, sensori-motor transmission is often regulated so that there are phasic changes in afferent input to follower neurons. We study this type of regulation in the feeding circuit of Aplysia. We characterize effects of the B4/5 interneurons on transmission from the mechanoafferent B21 to the radul...

journal_title：Journal of neurophysiology

authors： Evans CG,Jing J,Proekt A,Rosen SC,Cropper EC

更新日期：2003-12-01 00:00:00

abstract：:The tactile sensations mediated by the whisker-trigeminal system allow rodents to efficiently detect and discriminate objects. These capabilities rely strongly on the temporal and spatial structure of whisker deflections. Subthreshold but also spiking receptive fields in the barrel cortex encompass a large number of v...

journal_title：Journal of neurophysiology

authors： Le Cam J,Estebanez L,Jacob V,Shulz DE

更新日期：2011-08-01 00:00:00

abstract：:1. Current- and voltage-clamp studies were conducted on isolated rat adrenal chromaffin cells to identify the voltage-dependent ion channels mediating inward currents. 2. Mean resting membrane potential of the isolated cells was -62 +/- 3 (SE) mV. Evoked action potentials were both Na+ and Ca2+ based, and whole cell v...

journal_title：Journal of neurophysiology

authors： Hollins B,Ikeda SR

更新日期：1996-08-01 00:00:00

abstract：:Hyperreflexia and spasticity are chronic complications in spinal cord injury (SCI), with limited options for safe and effective treatment. A central mechanism in spasticity is hyperexcitability of the spinal stretch reflex, which presents symptomatically as a velocity-dependent increase in tonic stretch reflexes and e...

journal_title：Journal of neurophysiology

authors： Bandaru SP,Liu S,Waxman SG,Tan AM

更新日期：2015-03-01 00:00:00

abstract：:1. The aim of this study was to examine the nature of motoneuron firing-rate modulation in type-identified motor units during smoothly graded contractions of the cat medial gastrocnemius (MG) muscle evoked by stimulation of the mesencephalic locomotor region (MLR). Motoneuron discharge patterns, firing rates, and the ...

journal_title：Journal of neurophysiology

authors： Tansey KE,Botterman BR

更新日期：1996-01-01 00:00:00

abstract：:Combined transcranial magnetic stimulation and electroencephalography (TMS-EEG) enables noninvasive neurophysiological investigation of the human cortex. A TMS paradigm of short-latency afferent inhibition (SAI) is characterized by attenuation of the motor-evoked potential (MEP) and modulation of N100 of the TMS-evoke...

journal_title：Journal of neurophysiology

authors： Noda Y,Cash RF,Zomorrodi R,Dominguez LG,Farzan F,Rajji TK,Barr MS,Chen R,Daskalakis ZJ,Blumberger DM

更新日期：2016-09-01 00:00:00

abstract：:The purpose of our study was to examine the associations between the performance of older adults on four tests of mobility and the physical capabilities of the lower leg muscles. The assessments included measures of muscle strength, muscle activation, and perceived fatigability. Muscle activation was quantified as the...

journal_title：Journal of neurophysiology

authors： Mani D,Almuklass AM,Hamilton LD,Vieira TM,Botter A,Enoka RM

更新日期：2018-10-01 00:00:00

abstract：:1. The functional organization of interneurons in spinal laminae III-V was studied in an isolated preparation of hamster dorsal horn with sensory innervation from an excised skin patch. Morphological details of 40 neurons were visualized by intracellular injection of horseradish peroxidase. Active and passive membrane...

journal_title：Journal of neurophysiology

authors： Schneider SP

更新日期：1992-11-01 00:00:00

abstract：:Directional hearing is crucial for animals depending on acoustic signals to locate a mate. We focused on crickets to explore the reliability of directional information forwarded to the brain by the ascending auditory interneuron AN1, which is crucial for phonotactic behavior. We presented calling song from -45° to +45...

journal_title：Journal of neurophysiology

authors： Lv M,Zhang X,Hedwig B

更新日期：2020-03-01 00:00:00

abstract：:The present series of investigations was aimed to disclose the possible sites of action of excitatory and inhibitory inputs on tho-interneuron pathway mediating the primary afferent depolarization (PAD) of group I afferents of extensor muscles in the cat spinal cord. To this end we compared the effects produced by sti...

journal_title：Journal of neurophysiology

authors： Rudomín P,Jiménez I,Solodkin M,Dueñas S

更新日期：1983-10-01 00:00:00

abstract：:Experiments have been carried out on the soleus muscle and its tendon in the anesthetized cat. Measurements of isometric tension and muscle stiffness were made during contraction of whole or part of the muscle in response to stimulation of ventral root filaments. In an attempt to determine the distribution of tension ...

journal_title：Journal of neurophysiology

authors： Proske U,Morgan DL

更新日期：1984-09-01 00:00:00

abstract：:The blood oxygen level-dependent (BOLD) functional magnetic resonance imaging signal arises as a consequence of changes in blood flow and oxygen usage that in turn are modulated by changes in neural activity. Much attention has been given to both theoretical and experimental aspects of the energetics but not to the ne...

journal_title：Journal of neurophysiology

authors： Bennett MR,Farnell L,Gibson WG

更新日期：2018-03-01 00:00:00

abstract：:1. In a previous study, using a chronic cat preparation subjected to an associative conditioning procedure, we described the plasticity of the thalamo-cortical pathway by qualitatively and quantitatively analyzing the motor responses induced by stimulating each of the relays on the cerebello-thalamo-cortical pathway. ...

journal_title：Journal of neurophysiology

authors： Meftah EM,Rispal-Padel L

更新日期：1994-12-01 00:00:00

abstract：:The activity of jaw muscle receptors was studied by recording neurons in the mesencephalic nucleus of the trigeminal nerve in monkeys trained to control the position and movement of their mandible. Jaw position was measured by a weighted lever resting on the mandibular incisors. The force required to maintain the posi...

journal_title：Journal of neurophysiology

authors： Larson CR,Finocchio DV,Smith A,Luschei ES

更新日期：1983-07-01 00:00:00

abstract：:1. Using patch-clamp recordings, expression of voltage-activated ion channels by identified glial cells in situ was studied in hippocampal slices derived from 5- to 24-day-old rats. Glial cells were filled with Lucifer yellow during recording, and were identified by staining for glial fibrillary acidic protein (GFAP)....

journal_title：Journal of neurophysiology

authors： Sontheimer H,Waxman SG

更新日期：1993-11-01 00:00:00

abstract：:In the hippocampus, the calcium-binding protein parvalbumin (PV) is expressed in interneurons that innervate perisomatic regions. PV in GABAergic synaptic terminals was proposed to limit repetitive GABA release by buffering of "residual calcium." We assessed the role of presynaptic PV in Ca(2+)-dependent GABA release ...

journal_title：Journal of neurophysiology

authors： Vreugdenhil M,Jefferys JG,Celio MR,Schwaller B

更新日期：2003-03-01 00:00:00

abstract：:The temporal lobe is well known for its oscillatory activity associated with exploration, navigation, and learning. Intrinsic membrane potential oscillations (MPOs) and resonance of stellate cells (SCs) in layer II of the entorhinal cortex are thought to contribute to network oscillations and thereby to the encoding o...

journal_title：Journal of neurophysiology

authors： Boehlen A,Henneberger C,Heinemann U,Erchova I

更新日期：2013-01-01 00:00:00

abstract：:We used positron emission tomography to study motor learning by trial and error. Subjects learned sequences of eight finger movements. Tones generated by a computer told the subjects whether any particular move was correct or incorrect. A control condition was used in which the subjects generated moves, but there was ...

journal_title：Journal of neurophysiology

authors： Jueptner M,Frith CD,Brooks DJ,Frackowiak RS,Passingham RE

更新日期：1997-03-01 00:00:00