Effects of tetanic contraction of motor units of similar type on the initial stiffness to ramp stretch of the cat peroneus longus muscle.

abstract：:In the absence of any obvious input, sensory neurons and interneurons can display resting or spontaneous activity. This is often regarded as noise and removed through trial averaging, although it may reflect history-dependent modulation of tuning or fidelity and, thus, be of functional relevance to downstream interneu...

journal_title：Journal of neurophysiology

authors： Lepreux G,Haupt SS,Dürr V

更新日期：2019-12-01 00:00:00

abstract：:Rack and Westbury showed that low-frequency asynchronous stimulation of a muscle produces greater force compared with synchronous stimulation. This study tested the hypothesis that the difference results from the dynamic stretch of the common elastic elements. In eight anesthetized cats, the soleus was attached to a s...

journal_title：Journal of neurophysiology

authors： Sandercock TG

更新日期：2006-09-01 00:00:00

abstract：:A classical question in neuroscience is which features of a stimulus or of an action are represented in brain activity. When several features are interdependent either at a given point in time or at distinct points in time, neural activity related to one feature appears to be correlated with other features. Thus techn...

journal_title：Journal of neurophysiology

authors： Stark E,Drori R,Abeles M

更新日期：2006-03-01 00:00:00

abstract：:Reaching movements are subject to noise associated with planning and execution, but precisely how these noise sources interact to determine patterns of endpoint variability in three-dimensional space is not well understood. For frontal plane movements, variability is largest along the depth axis (the axis along which ...

journal_title：Journal of neurophysiology

authors： Apker GA,Buneo CA

更新日期：2012-01-01 00:00:00

abstract：:Multisite optical recording has revealed that the neural excitation wave induced by a sensory stimulation begins at a focus and propagates in the cortex. This wave is considered to be important for computation in the sensory cortex, particularly the integration of sensory information; however, the nature of this wave ...

journal_title：Journal of neurophysiology

authors： Hama N,Kawai M,Ito SI,Hirota A

更新日期：2018-05-01 00:00:00

abstract：:1. Neuron-specific expression of alternately spliced exons of the gene encoding the Phe-Met-Arg-Phe-NH2 (FMRFamide) family of neuropeptides and the role of encoded peptides in synaptic transmission were examined in an identified cardiorespiratory interneuron, the visceral white interneuron (VWI), in the snail Lymnaea....

journal_title：Journal of neurophysiology

authors： Skingsley DR,Bright K,Santama N,van Minnen J,Brierley MJ,Burke JF,Benjamin PR

更新日期：1993-03-01 00:00:00

abstract：:The rate and the total amount of Ca2+ elevation in the presynaptic terminals of bullfrog sympathetic ganglia depend on the firing frequency of the terminals. Carbonyl cyanide m-chlorophenylhydrazone (CCCP), a mitochondrial uncoupler, was used for testing whether mitochondrial Ca2+ uptake is one of the mechanisms that ...

journal_title：Journal of neurophysiology

authors： Peng YY

更新日期：1998-07-01 00:00:00

abstract：:Sustained oscillations of 13-18 Hz were observed in local field potentials (LFPs) in the cerebellar cortex of a behaving monkey. These oscillations, which appeared to be generated in the granular cell layer, were particularly prominent in the paramedian lobule. The oscillatory activity decreased during drowsiness or e...

journal_title：Journal of neurophysiology

authors： Pellerin JP,Lamarre Y

更新日期：1997-12-01 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 hypothesis that gamma-band oscillations are related to the representation of an environmental scene in the cerebral cortex after binding of corresponding perceptual elements is currently under discussion. One question is how the sensory system reacts to a fast change in the scene if perceptual elements are rigidly...

journal_title：Journal of neurophysiology

authors： Ross B,Herdman AT,Pantev C

更新日期：2005-12-01 00:00:00

abstract：:Cellular mechanisms underlying learning and memory were investigated in the octopus using a brain slice preparation of the vertical lobe, an area of the octopus brain involved in learning and memory. Field potential recordings revealed long-term potentiation (LTP) of glutamatergic synaptic field potentials similar to ...

journal_title：Journal of neurophysiology

authors： Hochner B,Brown ER,Langella M,Shomrat T,Fiorito G

更新日期：2003-11-01 00:00:00

abstract：:Previous studies have demonstrated anisotropic patterns of hand impedance under static conditions and during movement. Here we show that the pattern of kinematic error observed in studies of dynamics learning is associated with this anisotropic impedance pattern. We also show that the magnitude of kinematic error asso...

journal_title：Journal of neurophysiology

authors： Darainy M,Mattar AA,Ostry DJ

更新日期：2009-06-01 00:00:00

abstract：:The normal development and the capacity to calibrate gaze-stabilizing systems may depend on normal vision during infancy. At the end of 1 yr of dark rearing, cats have gaze-stabilizing deficits similar to that of the newborn human infant including decreased monocular optokinetic nystagmus (OKN) in the nasal to tempora...

journal_title：Journal of neurophysiology

authors： Tusa RJ,Mustari MJ,Burrows AF,Fuchs AF

更新日期：2001-08-01 00:00:00

abstract：:In this report, we provide the first characterization of abducens nucleus neuron (ABN) discharge dynamics during horizontal disjunctive saccades. These movements function to rapidly transfer the visual axes between targets located at different eccentricities and depths. Our primary objective was to determine whether t...

journal_title：Journal of neurophysiology

authors： Sylvestre PA,Cullen KE

更新日期：2002-12-01 00:00:00

abstract：:Nitric oxide (NO) has been recognized as an atypical neuronal messenger affecting synaptic transmission, but its cellular source has remained unresolved as the neuronal NO synthase isoform (nNOS) in brain areas such as the neocortex is expressed only by a small subset of inhibitory neurons. The involvement of the glia...

journal_title：Journal of neurophysiology

authors： Buskila Y,Amitai Y

更新日期：2010-03-01 00:00:00

abstract：:1. Both stretch and release of the ventral superficial muscles (VSM) in the abdomen of the hermit crab, Pagurus pollicarus, activate the VSM motoneurons in the intact animal and in the isolated abdomen. 2. This reflex was studied by recording intracellularly from muscle fibers innervated by single motoneurons during s...

journal_title：Journal of neurophysiology

authors： Chapple WD

更新日期：1993-06-01 00:00:00

abstract：:1. "Unmasking" of weak synaptic connections has been suggested as a mechanism for the early changes in cortical topographic maps that follow alterations of sensory activity. For such a mechanism to operate, convergent sensory inputs must already exist in the normal cortex. 2. We tested for topographic and cross-modali...

journal_title：Journal of neurophysiology

authors： Smits E,Gordon DC,Witte S,Rasmusson DD,Zarzecki P

更新日期：1991-09-01 00:00:00

abstract：:Individuation refers to individuals' use of spatial and temporal properties to register an object as a distinct perceptual event relative to other stimuli. Although behavioral studies have examined both spatial and temporal individuation, neuroimaging investigations of individuation have been restricted to the spatial...

journal_title：Journal of neurophysiology

authors： Naughtin CK,Tamber-Rosenau BJ,Dux PE

更新日期：2014-02-01 00:00:00

abstract：:To elucidate how information is processed in the vestibuloocular reflex (VOR) pathways subserving vertical eye movements, extracellular single-unit recordings were obtained from the vestibular nuclei of alert monkeys trained to track a visual target with their eyes while undergoing sinusoidal pitch oscillations (0.2-1...

journal_title：Journal of neurophysiology

authors： Chubb MC,Fuchs AF,Scudder CA

更新日期：1984-10-01 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：:It is well known that, typically, saccadic eye movements precede goal-directed hand movements to a visual target stimulus. Also pointing in general is more accurate when the pointing target is gazed at. In this study, it is hypothesized that saccades are not only preceding pointing but that gaze also is stabilized dur...

journal_title：Journal of neurophysiology

authors： Neggers SF,Bekkering H

更新日期：2000-02-01 00:00:00

abstract：:Purinoreceptors of the P2 family contribute strongly to signaling in the cochlea, but little is known about the effects of purinergic neurotransmission in the central auditory system. Here we examine P2 receptor-mediated signaling in the large spherical bushy cells (SBCs) of Mongolian gerbils around the onset of acous...

journal_title：Journal of neurophysiology

authors： Milenkovic I,Rinke I,Witte M,Dietz B,Rübsamen R

更新日期：2009-09-01 00:00:00

abstract：:Smooth pursuit eye movements stabilize slow-moving objects on the retina by matching eye velocity with target velocity. Two critical components are required to generate smooth pursuit: first, because it is a voluntary eye movement, the subject must select a target to pursue to engage the tracking system; and second, g...

journal_title：Journal of neurophysiology

authors： Mitchell JF,Priebe NJ,Miller CT

更新日期：2015-06-01 00:00:00

abstract：:Muscles paralyzed by chronic (>1 yr) spinal cord injury fatigue readily. Our aim was to evaluate whether the fatigability of paralyzed thenar muscles (n = 10) could be reduced by the repeated delivery of variable versus constant frequency pulse trains. Fatigue was induced in four ways. Intermittent supramaximal median...

journal_title：Journal of neurophysiology

authors： Thomas CK,Griffin L,Godfrey S,Ribot-Ciscar E,Butler JE

更新日期：2003-04-01 00:00:00

abstract：:1. H reflexes were elicited in the second interosseous muscle of the hindpaw of the anesthetized dog during passive rotation of the shank about the ipsilateral or contralateral knee. Reflexes sampled at four points in the cycle of movement were compared with stationary controls. For both the ipsilateral and contralate...

journal_title：Journal of neurophysiology

authors： Misiaszek JE,Barclay JK,Brooke JD

更新日期：1996-11-01 00:00:00

abstract：:We have investigated whether neurons in superficial laminae of the spinal dorsal horn respond to intracutaneous (ic) delivery of histamine and other irritant chemicals, and thus might be involved in signaling sensations of itch or chemogenic pain. Single-unit recordings were made from superficial lumbar dorsal horn ne...

journal_title：Journal of neurophysiology

authors： Jinks SL,Carstens E

更新日期：2000-08-01 00:00:00

abstract：:In songbirds, the basal ganglia outflow nucleus LMAN is a cortical analog that is required for several forms of song plasticity and learning. Moreover, in adults, inactivating LMAN can reverse the initial expression of learning driven via aversive reinforcement. In the present study, we investigated how LMAN contribut...

journal_title：Journal of neurophysiology

authors： Warren TL,Tumer EC,Charlesworth JD,Brainard MS

更新日期：2011-10-01 00:00:00

abstract：:1. Single-unit electrical activity has been recorded from 34 dorsal horn neurons in the sacral segments (S1-2) of the spinal cord in halothane-anesthetized rats. All of the neurons had cutaneous receptive fields (RFs) on the rat's tail. The neurons were classified according to their responses to both innocuous and nox...

journal_title：Journal of neurophysiology

authors： Laird JM,Cervero F

更新日期：1990-05-01 00:00:00

abstract：:N-methyl-D-aspartate receptors (NMDARs) are known to regulate axonal refinement and dendritic branching. However, because NMDARs are abundantly present as tri-heteromers (e.g., NR1/NR2A/NR2B) during development, the precise role of the individual subunits NR2A and NR2B in these processes has not been elucidated. Ventr...

journal_title：Journal of neurophysiology

authors： Sepulveda FJ,Bustos FJ,Inostroza E,Zúñiga FA,Neve RL,Montecino M,van Zundert B

更新日期：2010-04-01 00:00:00

abstract：:In layer 2/3 of neocortex, brief trains of action potentials in pyramidal neurons (PNs) induce the mobilization of endogenous cannabinoids (eCBs), resulting in a depression of GABA release from the terminals of inhibitory interneurons (INs). This depolarization-induced suppression of inhibition (DSI) is mediated by ac...

journal_title：Journal of neurophysiology

authors： Lemtiri-Chlieh F,Levine ES

更新日期：2007-11-01 00:00:00