Distinct patterns of motor unit behavior during muscle spasms in spinal cord injured subjects.

abstract：:Interjoint coordination is essential for proper walking behavior in multi-jointed insect legs. We have shown previously that movement signals from the femur-tibia (FT) joint can shape motor activity of the adjacent coxa-trochanter (CT) joint in the stick insect, Carausius morosus. Here, we present data on the role of ...

journal_title：Journal of neurophysiology

authors： Bucher D,Akay T,DiCaprio RA,Buschges A

更新日期：2003-03-01 00:00:00

abstract：:Action potential initiation and conduction along peripheral axons is a dynamic process that displays pronounced activity dependence. In patients with neuropathic pain, differences in the modulation of axonal conduction velocity by activity suggest that this property may provide insight into some of the pathomechanisms...

journal_title：Journal of neurophysiology

authors： Tigerholm J,Petersson ME,Obreja O,Lampert A,Carr R,Schmelz M,Fransén E

更新日期：2014-05-01 00:00:00

abstract：:Microsleeps are brief episodes of arousal level decrease manifested through behavioral signs. Brain activity during microsleep in the presence of external stimulus remains poorly understood. In this study, we sought to understand neural responses to auditory stimulation during microsleep. We gave participants the simp...

journal_title：Journal of neurophysiology

authors： Yong Z,Tan JH,Hsieh PJ

更新日期：2019-12-01 00:00:00

abstract：:1. Responses to pure tones were recorded from single neurons in the anteroventral cochlear nucleus (AVCN) in kittens ranging in age from 4 to 45 days. Different response properties mature at different times after birth. 2. The shapes of response areas of AVCN neurons after the 1st postnatal week resemble those recorde...

journal_title：Journal of neurophysiology

authors： Brugge JF,Javel E,Kitzes LM

更新日期：1978-11-01 00:00:00

abstract：:1. The effect of cholinergic receptor activation on gamma-aminobutyric acid (GABA)-mediated inhibitory synaptic transmission was investigated in voltage-clamped CA1 pyramidal neurons (HPNs) in the guinea pig hippocampal slice preparation. 2. The cholinergic agonist carbachol (1-10 microM) induced a prominent and susta...

journal_title：Journal of neurophysiology

authors： Behrends JC,ten Bruggencate G

更新日期：1993-02-01 00:00:00

abstract：:In reaching to grasp an object, the arm transports the hand to the intended location as the hand shapes to grasp the object. Prior studies that tracked arm endpoint and grip aperture have shown that reaching and grasping, while proceeding in parallel, are interdependent to some degree. Other studies of reaching and gr...

journal_title：Journal of neurophysiology

authors： Rouse AG,Schieber MH

更新日期：2015-12-01 00:00:00

abstract：:1. Spontaneous saccades, vestibuloocular responses (VOR), and optokinetic nystagmus were recorded in three squirrel monkeys before and after chemical or electrolytic lesion of the posterior commissure (PC). 2. PC lesions produced abnormal vertical eye movements, in particular, 1) Postsaccadic drifts, and 2) VOR gain r...

journal_title：Journal of neurophysiology

authors： Partsalis AM,Highstein SM,Moschovakis AK

更新日期：1994-06-01 00:00:00

abstract：:The thalamic reticular nucleus (nRt) provides a major source of inhibition in the thalamo-cortical circuit and is critically involved in the generation of spindle oscillations. Here we describe the properties of thalamic giant depolarizing potentials (tGDPs) that were observed in nRt during early development. tGDPs pe...

journal_title：Journal of neurophysiology

authors： Pangratz-Fuehrer S,Rudolph U,Huguenard JR

更新日期：2007-03-01 00:00:00

abstract：:The gain of the vertical vestibuloocular reflex (VVOR), defined as eye velocity/head velocity was adapted in squirrel monkeys by employing visual-vestibular mismatch stimuli. VVOR gain, measured in the dark, could be trained to values between 0.4 and 1.5. Single-unit activity of vertical zone Purkinje cells was record...

journal_title：Journal of neurophysiology

authors： Hirata Y,Highstein SM

更新日期：2001-05-01 00:00:00

abstract：:It is an essential feature for the visual system to keep track of self-motion to maintain space constancy. Therefore the saccadic system uses extraretinal information about previous saccades to update the internal representation of memorized targets, an ability that has been identified in behavioral and electrophysiol...

journal_title：Journal of neurophysiology

authors： Blohm G,Missal M,Lefèvre P

更新日期：2005-03-01 00:00:00

abstract：:Spinal cord neuronal circuits generate motor neuron activity patterns responsible for rhythmic hindlimb behaviors such as scratching and swimming. Kinematic analyses of limb movements generated by this motor neuron output reveal important characteristics of these behaviors. Intralimb kinematics of the turtle hindlimb ...

journal_title：Journal of neurophysiology

authors： Field EC,Stein PS

更新日期：1997-09-01 00:00:00

abstract：:Visual object information is conveyed from V1 to area TE along the ventral visual pathway with increasing receptive field (RF) sizes. The RFs of TE neurons are known to be large, but it is largely unknown how large RFs are shaped along the ventral visual pathway. In this study, we addressed this question in two aspect...

journal_title：Journal of neurophysiology

authors： Obara K,O'Hashi K,Tanifuji M

更新日期：2017-10-01 00:00:00

abstract：:1. Eye movements were recorded before and after bilateral occipital lobectomy in six rhesus monkeys trained to fixate and to follow small targets. Striate cortex was completely removed in two animals; small islands islands remained in the others. In all animals portions of extrastriate cortex were also removed but the...

journal_title：Journal of neurophysiology

authors： Zee DS,Tusa RJ,Herdman SJ,Butler PH,Gücer G

更新日期：1987-10-01 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：:The somatosensory temporal discrimination threshold (STDT) has been used in recent years to investigate time processing of sensory information, but little is known about the physiological correlates of somatosensory temporal discrimination. The objective of this study was to investigate whether the time interval requi...

journal_title：Journal of neurophysiology

authors： Leodori G,Formica A,Zhu X,Conte A,Belvisi D,Cruccu G,Hallett M,Berardelli A

更新日期：2017-10-01 00:00:00

abstract：:1. We recorded from 257 neurons in the banks of the posterior third of the principal sulcus of two rhesus monkeys trained to look at a fixation point and make saccades to stimuli in the visual periphery. Sixty-six percent (220/257) discharged or were suppressed in association with one or more aspects of the tasks we u...

journal_title：Journal of neurophysiology

authors： Boch RA,Goldberg ME

更新日期：1989-05-01 00:00:00

abstract：:It is well established that patterns of sensory input can affect neuroplastic changes during early development. The scope and consequences of experience-dependent plasticity in the adult are less well understood. We studied the possibility that repeated exposure to trains of stroboscopic stimuli could induce a sensiti...

journal_title：Journal of neurophysiology

authors： Uhlrich DJ,Manning KA,O'Laughlin ML,Lytton WW

更新日期：2005-12-01 00:00:00

abstract：:1. We present a new mathematical description of the complete distribution of electrical responses to stochastic synaptic activity (quantal analysis) that is intended as a model of experiments on central neuronal synapses. Unlike previous treatments, this distribution is calculated for each instant after the release of...

journal_title：Journal of neurophysiology

authors： Blum KI,Idiart MA

更新日期：1994-09-01 00:00:00

abstract：:Dopaminergic modulation produces a variety of functional changes in the principal cell of the striatum, the medium spiny neuron (MSN). Using a 189-compartment computational model of a ventral striatal MSN, we simulated whole cell D1- and D2-receptor-mediated modulation of both intrinsic (sodium, calcium, and potassium...

journal_title：Journal of neurophysiology

authors： Moyer JT,Wolf JA,Finkel LH

更新日期：2007-12-01 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：:The present paper investigates the sensory-driven modulations of central pattern generator dynamics that can be expected to reproduce human behavior during rhythmic hybrid tasks. We propose a theoretical model of human sensorimotor behavior able to account for the observed data from the ball-bouncing task. The novel c...

journal_title：Journal of neurophysiology

authors： Avrin G,Siegler IA,Makarov M,Rodriguez-Ayerbe P

更新日期：2017-10-01 00:00:00

abstract：:Gamma-aminobutyric acid type A (GABAA) receptors expressed within the medial preoptic area (mPOA) are known to play a critical role in regulating sexual and neuroendocrine functions. In the rat brain, high levels of expression of the gamma1 subunit mRNA of the GABAA receptor are restricted to a limited number of regio...

journal_title：Journal of neurophysiology

authors： Nett ST,Jorge-Rivera JC,Myers M,Clark AS,Henderson LP

更新日期：1999-01-01 00:00:00

abstract：:In the cochlear nucleus (CN) of awake mustached bats, single- and two-tone stimuli were used to examine how responses in major CN subdivisions contribute to spectrotemporal integrative features in the inferior colliculus (IC). Across CN subdivisions, the proportional representation of frequencies differed. A striking ...

journal_title：Journal of neurophysiology

authors： Marsh RA,Nataraj K,Gans D,Portfors CV,Wenstrup JJ

更新日期：2006-01-01 00:00:00

abstract：:Nicotine evokes pain in the skin and oral mucosa and excites a subpopulation of cutaneous nociceptors, but little is known about the central transmission of chemogenic pain. We have investigated the responses of lumbar spinal wide dynamic range (WDR)-type dorsal horn neurons to intracutaneous (ic) microinjection of ni...

journal_title：Journal of neurophysiology

authors： Jinks SL,Carstens E

更新日期：1999-12-01 00:00:00

abstract：:The development of modern neuroscience tools is critical for deciphering brain circuit organization and function. An important aspect for technical development is to enhance each technique's advantages and compensate for limitations. We developed a high-precision and fast functional mapping technique in brain slices t...

journal_title：Journal of neurophysiology

authors： Xu X,Olivas ND,Levi R,Ikrar T,Nenadic Z

更新日期：2010-04-01 00:00:00

abstract：:The pacemaker current of a bursting neuron of Helix pomatia was investigated using voltage-clamp and pressure-injection techniques. In the steady state the net membrane current was zero near threshold of the action potential at -45 mV. Negative to this potential the membrane current was inward and steady. During burst...

journal_title：Journal of neurophysiology

authors： Swandulla D,Lux HD

更新日期：1985-12-01 00:00:00

abstract：:Long-term potentiation (LTP) in rat spinal dorsal horn neurons was induced by electrical high-frequency stimulation (HFS) of afferent C fibers. LTP is generally assumed to be a key mechanism of spinal sensitization. To determine the contribution of skin and muscle afferents to LTP induction, the sural nerve (SU, pure ...

journal_title：Journal of neurophysiology

authors： Zhang J,Hoheisel U,Klein T,Magerl W,Mense S,Treede RD

更新日期：2016-02-01 00:00:00

abstract：:1. Neurons (n = 142) were recorded with extracellular micropipettes in the parabrachial (PB) area, in the anesthetized rat, some of them being antidromically driven from the centralis nucleus of the amygdala (Ce). The spontaneous activity of these neurons was low, (10th percentile < median frequency < 90th percentile;...

journal_title：Journal of neurophysiology

authors： Bernard JF,Huang GF,Besson JM

更新日期：1994-05-01 00:00:00

abstract：:The ability of individuals to adapt locomotion to constraints associated with the complex environments normally encountered in everyday life is paramount for survival. Here, we tested the ability of 24 healthy young adults to adapt to a rightward prism shift (∼11.3°) while either walking and stepping to targets (i.e.,...

journal_title：Journal of neurophysiology

authors： Alexander MS,Flodin BW,Marigold DS

更新日期：2011-08-01 00:00:00

abstract：:Training rats to perform rapidly and efficiently in an olfactory discrimination task results in robust enhancement of excitatory and inhibitory synaptic connectivity in the rat piriform cortex, which is maintained for days after training. To explore the mechanisms by which such synaptic enhancement occurs, we recorded...

journal_title：Journal of neurophysiology

authors： Saar D,Reuveni I,Barkai E

更新日期：2012-02-01 00:00:00