Adrenoreceptor modulation of oromotor pathways in the rat medulla.

abstract：:We recorded single-unit activity of 25 units in the parafoveal representation of macaque V1 to transient appearance of sinusoidal gratings. Gratings were systematically varied in spatial phase and in one or two of the following: contrast, spatial frequency, and orientation. Individual responses were compared based on ...

journal_title：Journal of neurophysiology

authors： Victor JD,Purpura KP

更新日期：1998-08-01 00:00:00

abstract：:Previous studies have revealed a new form of activity-dependent modulation of the afterhyperpolarization (AHP) in tactile (T) neurons of the leech Hirudo medicinalis. The firing of T cells is characterized by an AHP, which is mainly due to the activity of the Na+/K+ ATPase. Low-frequency repetitive stimulation of T ne...

journal_title：Journal of neurophysiology

authors： Scuri R,Mozzachiodi R,Brunelli M

更新日期：2005-08-01 00:00:00

abstract：:Our understanding of how we learn and retain motor behaviors is still limited. For instance, there is conflicting evidence as to whether the memory of a learned visuomotor perturbation consolidates; i.e., the motor memory becomes resistant to interference from learning a competing perturbation over time. Here, we soug...

journal_title：Journal of neurophysiology

authors： Maeda RS,McGee SE,Marigold DS

更新日期：2017-01-01 00:00:00

abstract：:Falls during walking are a major cause of poststroke injury, and walking faster may decrease the ability to recover following a gait perturbation. We compared gait stability between high-functioning poststroke individuals and controls and evaluated the effect of gait speed on gait stability. Ten stroke subjects and te...

journal_title：Journal of neurophysiology

authors： Krasovsky T,Lamontagne A,Feldman AG,Levin MF

更新日期：2013-01-01 00:00:00

abstract：:1. This paper reports the results of an investigation of the basic mechanisms underlying intersegmental coordination in lamprey locomotion, by the use of a combined mathematical and biological approach. 2. Mathematically, the lamprey central pattern generator (CPG) is described as a chain of coupled nonlinear oscillat...

journal_title：Journal of neurophysiology

authors： Williams TL,Sigvardt KA,Kopell N,Ermentrout GB,Remler MP

更新日期：1990-09-01 00:00:00

abstract：:Animal studies have suggested that tissue injury-related increased levels of glutamate may be involved in peripheral nociceptive mechanisms in deep craniofacial tissues. Indeed, injection of glutamate (0.1-1 M, 10 microl) into the temporomandibular region evokes reflex jaw muscle responses through activation of periph...

journal_title：Journal of neurophysiology

authors： Cairns BE,Hu JW,Arendt-Nielsen L,Sessle BJ,Svensson P

更新日期：2001-08-01 00:00:00

abstract：:Motor behavior often occurs in environments with multiple goal options that can vary during the ongoing action. We explored this situation by requiring subjects to select between different target options during an ongoing reach. During split trials the original target was replaced with a left and a right flanking targ...

journal_title：Journal of neurophysiology

authors： Kurtzer IL,Muraoka T,Singh T,Prasad M,Chauhan R,Adhami E

更新日期：2020-10-01 00:00:00

abstract：:Air hunger (uncomfortable urge to breathe) is a component of dyspnea (shortness of breath). Three human H(2)(15)O positron emission tomography (PET) studies have identified activation of phylogenetically ancient structures in limbic and paralimbic regions during dyspnea. Other studies have shown activation of these st...

journal_title：Journal of neurophysiology

authors： Evans KC,Banzett RB,Adams L,McKay L,Frackowiak RS,Corfield DR

更新日期：2002-09-01 00:00:00

abstract：:The cardiac ganglion (CG) of Homarus americanus is a central pattern generator that consists of two oscillatory groups of neurons: "small cells" (SCs) and "large cells" (LCs). We have shown that SCs and LCs begin their bursts nearly simultaneously but end their bursts at variable phases. This variability contrasts wit...

journal_title：Journal of neurophysiology

authors： Williams AH,Kwiatkowski MA,Mortimer AL,Marder E,Zeeman ML,Dickinson PS

更新日期：2013-05-01 00:00:00

abstract：:Transection of a peripheral nerve results in withdrawal of synapses from motoneurons. Some of the withdrawn synapses are restored spontaneously, but those containing the vesicular glutamate transporter 1 (VGLUT1), and arising mainly from primary afferent neurons, are withdrawn permanently. If animals are exercised imm...

journal_title：Journal of neurophysiology

authors： Brandt J,Evans JT,Mildenhall T,Mulligan A,Konieczny A,Rose SJ,English AW

更新日期：2015-04-01 00:00:00

abstract：:The role of metabotropic glutamate receptors (mGluRs) and adenosine receptors in hypoxia-induced suppression of excitatory synaptic input to interneurons residing at the granule cell-hilus border in the dentate gyrus was investigated with the use of whole cell electrophysiological recording techniques in thin (250 mic...

journal_title：Journal of neurophysiology

authors： Doherty J,Dingledine R

更新日期：1997-01-01 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：:Many sensory brain regions are characterized by extensive local network interactions. However, we know relatively little about the contribution of this microcircuitry to sensory coding. Detailed analyses of neuronal microcircuitry are usually performed in vitro, whereas sensory processing is typically studied by recor...

journal_title：Journal of neurophysiology

authors： Ma X,Kohashi T,Carlson BA

更新日期：2013-07-01 00:00:00

abstract：:We investigated spike-frequency adaptation of neurons sensitive to interaural phase disparities (IPDs) in the inferior colliculus (IC) of urethane-anesthetized guinea pigs using a stimulus paradigm designed to exclude the influence of adaptation below the level of binaural integration. The IPD-step stimulus consists o...

journal_title：Journal of neurophysiology

authors： Ingham NJ,McAlpine D

更新日期：2004-02-01 00:00:00

abstract：:Various forms of synaptic plasticity, including spike timing-dependent plasticity, can be accounted for by calcium-dependent models of synaptic plasticity. However, recent results in which synaptic plasticity is induced by multi-spike protocols cannot simply be accounted for by linear superposition of plasticity due t...

journal_title：Journal of neurophysiology

authors： Cai Y,Gavornik JP,Cooper LN,Yeung LC,Shouval HZ

更新日期：2007-01-01 00:00:00

abstract：:1. The spatial and temporal response characteristics of direction-selective neurons in the nucleus of the optic tract and dorsal terminal nucleus of the accessory optic system (NOT-DTN) of the wallaby were established using moving sinusoidal gratings. This is the first comprehensive investigation of the spatiotemporal...

journal_title：Journal of neurophysiology

authors： Ibbotson MR,Mark RF,Maddess TL

更新日期：1994-12-01 00:00:00

abstract：:Postural sway during quiet stance is attenuated by actively maintained contact of the index finger with a stationary surface, even if the level of applied force (<1 N) cannot provide mechanical stabilization. In this situation, changes in force level at the fingertip lead changes in center of foot pressure by approxim...

journal_title：Journal of neurophysiology

authors： Rabin E,Bortolami SB,DiZio P,Lackner JR

更新日期：1999-12-01 00:00:00

abstract：:The relative motion between the surface of an object and our fingers produces patterns of skin deformation such as stretch, indentation, and vibrations. In this study, we hypothesized that motion-induced vibrations are combined with other tactile cues for the discrimination of tactile speed. Specifically, we hypothesi...

journal_title：Journal of neurophysiology

authors： Dallmann CJ,Ernst MO,Moscatelli A

更新日期：2015-12-01 00:00:00

abstract：:Previous studies have demonstrated that locally administered cannabinoids attenuate allodynia and hyperalgesia through activation of peripheral cannabinoid receptors (CB(1) and CB(2)). However, it is currently unknown if cannabinoids alter the response properties of nociceptors. In the present study, correlative behav...

journal_title：Journal of neurophysiology

authors： Potenzieri C,Brink TS,Pacharinsak C,Simone DA

更新日期：2008-11-01 00:00:00

abstract：:1. This paper examines the electrophysiological properties of cultured rat adrenal chromaffin cells at different stages of neuron-like morphological differentiation in response to nerve growth factor (NGF). 2. Chromaffin cells display a large variability in the morphological changes after exposure to NGF. However, a m...

journal_title：Journal of neurophysiology

authors： Islas-Suárez L,Gómez-Chavarín M,Drucker-Colín R,Hernández-Cruz A

更新日期：1994-10-01 00:00:00

abstract：:Action potential firing rates are generally limited by the refractory period, which depends on the recovery from inactivation of voltage-gated Na channels. In cerebellar Purkinje neurons, the kinetics of Na channels appear specialized for rapid firing. Upon depolarization, an endogenous open-channel blocker rapidly te...

journal_title：Journal of neurophysiology

authors： Afshari FS,Ptak K,Khaliq ZM,Grieco TM,Slater NT,McCrimmon DR,Raman IM

更新日期：2004-11-01 00:00:00

abstract：:1. Although it is generally agreed that Ca2+ couples depolarization to the release of neurotransmitters, hypertonic saline and ethanol (ETOH) evoke neurosecretion independent of extracellular Ca2+. One possible explanation is that these agents release Ca2+ from an intracellular store that then stimulates Ca(2+)-depend...

journal_title：Journal of neurophysiology

authors： Brosius DC,Hackett JT,Tuttle JB

更新日期：1992-10-01 00:00:00

abstract：:Odors activate lobster olfactory receptor neurons (ORNs) through phosphoinositide signaling that appears to target a Na(+)-gated nonselective cation channel. The Na(+)-gated channel is a potential member of the growing family of transient receptor potential (TRP) channels. Here, we test the effect of potential antagon...

journal_title：Journal of neurophysiology

authors： Bobkov YV,Ache BW

更新日期：2005-03-01 00:00:00

abstract：:An in vitro brain stem-spinal cord preparation from an adult urodele (Pleurodeles waltl) was developed in which two fictive rhythmic motor patterns were evoked by bath application of N-methyl-D-aspartate (NMDA; 2.5-10 microM) with D-serine (10 microM). Both motor patterns displayed left-right alternation. The first pa...

journal_title：Journal of neurophysiology

authors： Delvolvé I,Branchereau P,Dubuc R,Cabelguen JM

更新日期：1999-08-01 00:00:00

abstract：:The responses of spinothalamic tract neurons were studied by extra- and intracellular recordings from the lumbosacral spinal cord in anesthetized rhesus monkeys (Macaca mulatta). The neurons were identified by antidromic activation from the contralateral diencephalon. They were then classified by the mildest form of m...

journal_title：Journal of neurophysiology

authors： Foreman RD,Applebaum AE,Beall JE,Trevino DL,Willis WD

更新日期：1975-01-01 00:00:00

abstract：:Sexually dimorphic behaviors develop under the influence of sex steroids, which induce reversible changes in the underlying neural network of the brain. However, little is known about the proteins that mediate these activational effects of sex steroids. Here, we used a proteomics approach for large-scale identificatio...

journal_title：Journal of neurophysiology

authors： Zupanc GK,Ilies I,Sîrbulescu RF,Zupanc MM

更新日期：2014-04-01 00:00:00

abstract：:1. Biventer cervicis (BC) is an anatomically complex muscle that is divided by tendinous inscriptions into five in-series compartments of motor units. We have analyzed the fiber architecture and fiber-type composition of these different compartments using microdissection and histochemical methods. 2. BC narrows as it ...

journal_title：Journal of neurophysiology

authors： Richmond FJ,Armstrong JB

更新日期：1988-07-01 00:00:00

abstract：:1. We investigated gamma-aminobutyric acid (GABA) receptors using thin slice patch-clamp techniques in the swellings along axons of posterior pituitary nerve terminals. 2. Activation of the nerve terminal GABAA receptor induced a mean conductance change of 1.5 nS. Normalizing to area gave a mean conductance density of...

journal_title：Journal of neurophysiology

authors： Zhang SJ,Jackson MB

更新日期：1995-03-01 00:00:00

abstract：:Long-term depression (LTD) was induced in neocortical layer 5 pyramidal connections by pairing presynaptic firing with subthreshold postsynaptic depolarization (dLTD) or via a spike-timing protocol (tLTD). Like tLTD, dLTD reduced short-term depression and increased the coefficient of variation consistent with a presyn...

journal_title：Journal of neurophysiology

authors： Sjöström PJ,Turrigiano GG,Nelson SB

更新日期：2004-12-01 00:00:00

abstract：:1. A task was used by Posner (1980) to measure shifts of attention that occurred covertly, in the absence of an eye movement or other orienting response. This paradigm was used here to assess the nature of covert attentional orienting in monkeys to develop an animal model for neurophysiological studies. Shifts of atte...

journal_title：Journal of neurophysiology

authors： Bowman EM,Brown VJ,Kertzman C,Schwarz U,Robinson DL

更新日期：1993-07-01 00:00:00