Learning a novel myoelectric-controlled interface task.

abstract：:Modulation of sacral spinal dorsal horn neurons by the ventrolateral PAG was studied by extracellular recording combined with microiontophoretic applications of alpha-adrenergic agonists or antagonists. Bicuculline (BIC, 15 ng) microinjected into the ventrolateral PAG produced a consistent inhibition of the responses ...

journal_title：Journal of neurophysiology

authors： Budai D,Harasawa I,Fields HL

更新日期：1998-11-01 00:00:00

abstract：:Without intervention after spinal cord injury (SCI), paralyzed skeletal muscles undergo myofiber atrophy and slow-to-fast myofiber type transformations. We hypothesized that chronic spasticity-associated neuromuscular activity after SCI would promote recovery from such deleterious changes. We examined segmental tail m...

journal_title：Journal of neurophysiology

authors： Harris RL,Putman CT,Rank M,Sanelli L,Bennett DJ

更新日期：2007-02-01 00:00:00

abstract：:Individuals with chronic spinal cord injury (SCI) often demonstrate multijoint reflex activity that is clinically classified as an extensor spasm. These responses are commonly observed in conjunction with an imposed extension movement of the hips, such as movement from a sit to a supine position. Coincidentally, affer...

journal_title：Journal of neurophysiology

authors： Steldt RE,Schmit BD

更新日期：2004-08-01 00:00:00

abstract：:The posterior nucleus of thalamus (PO) is a higher-order nucleus involved in sensorimotor processing, including nociception. An important characteristic of PO is its wide range of activity profiles that vary across states of arousal, thought to underlie differences in somatosensory perception subject to attention and ...

journal_title：Journal of neurophysiology

authors： Park A,Li Y,Masri R,Keller A

更新日期：2017-07-01 00:00:00

abstract：:Ankle inversions have been studied extensively during standing conditions. However, inversion traumas occur during more dynamic conditions, like walking. Therefore in this study sudden ankle inversions were elicited in 12 healthy subjects who stepped on a trap door while walking on a treadmill. First, 10 control trial...

journal_title：Journal of neurophysiology

authors： Nieuwenhuijzen PH,Duysens J

更新日期：2007-10-01 00:00:00

abstract：:1. The properties of parietal neurons were studied in four adult rhesus monkeys during fast arm movements. The animals were trained to perform flexion or extension of the forearm about the elbow in response to specific auditory cues. Single neuron activity was recorded in 272 area 5 neurons, 81 neurons of the somatose...

journal_title：Journal of neurophysiology

authors： Burbaud P,Doegle C,Gross C,Bioulac B

更新日期：1991-08-01 00:00:00

abstract：:Electrophysiological analysis has revealed much about the broad coding and neural ensemble dynamics that characterize gustatory cortical (GC) taste processing in awake rats and about how these dynamics relate to behavior. With regard to mice, however, data concerning cortical taste coding have largely been restricted ...

journal_title：Journal of neurophysiology

authors： Levitan D,Lin JY,Wachutka J,Mukherjee N,Nelson SB,Katz DB

更新日期：2019-10-01 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. 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：:Cholinergic signaling coupled to sensory-driven neuronal depolarization is essential for modulating lasting changes in deep-layer neural excitability and experience-dependent plasticity in the primary auditory cortex. However, the underlying cellular mechanism(s) associated with coincident cholinergic receptor activat...

journal_title：Journal of neurophysiology

authors： Fu X,Ye H,Jia H,Wang X,Chomiak T,Luo F

更新日期：2019-12-01 00:00:00

abstract：:Many neurons within prefrontal cortex exhibit a tonic discharge between visual stimulation and motor response. This delay activity may contribute to movement, memory, and vision. We studied delay activity sent from the frontal eye field (FEF) in prefrontal cortex to the superior colliculus (SC). We evaluated whether t...

journal_title：Journal of neurophysiology

authors： Sommer MA,Wurtz RH

更新日期：2001-04-01 00:00:00

abstract：:1. Teased axon recordings were made from 167 spontaneously active A beta- and A delta-afferents that ended in sciatic nerve end neuromas of 6-12 days standing. When challenged with a standard bolus of systemically applied adrenaline, 100 (60%) responded, either with an increase in baseline firing frequency (excitation...

journal_title：Journal of neurophysiology

authors： Chen Y,Michaelis M,Janig W,Devor M

更新日期：1996-12-01 00:00:00

abstract：:The vestibular system operates in a push-pull fashion using signals from both labyrinths and an intricate bilateral organization. Unilateral vestibular lesions cause well-characterized motor deficits that are partially compensated over time and whose neural correlates have been traced in the mean response modulation o...

journal_title：Journal of neurophysiology

authors： Yu XJ,Thomassen JS,Dickman JD,Newlands SD,Angelaki DE

更新日期：2014-08-15 00:00:00

abstract：:Active sensing in biological system consists of emitting/receiving a periodic signal to explore the environment. The signal can be emitted toward distant objects, as in echolocation, or in direct contact with the object, for example, whisking in rodents. We explored the hypothesis that a similar mechanism exists in hu...

journal_title：Journal of neurophysiology

authors： Dione M,Wessberg J

更新日期：2019-09-01 00:00:00

abstract：:1. The role of sensory information in shaping muscle activation patterns to postural perturbations in humans was investigated by varying velocity, amplitude, or duration of the perturbing stimulus. Ten normal subjects were exposed to 120 backward translations of the support surface under conditions of varying velociti...

journal_title：Journal of neurophysiology

authors： Diener HC,Horak FB,Nashner LM

更新日期：1988-06-01 00:00:00

abstract：:Several recent studies have shown that extracting pattern motion direction is a dynamical process where edge motion is first extracted and pattern-related information is encoded with a small time lag by MT neurons. A similar dynamics was found for human reflexive or voluntary tracking. Here, we bring an essential, but...

journal_title：Journal of neurophysiology

authors： Barthélemy FV,Fleuriet J,Masson GS

更新日期：2010-03-01 00:00:00

abstract：:The goal of this study was to characterize the dynamics and functional connectivity of brain networks associated with fast (short-term) learning of handwriting using functional magnetic resonance imaging. Participants (n = 12) performed a graphomotor sequence learning task (naïve subjects learning to draw simple, 3-st...

journal_title：Journal of neurophysiology

authors： Swett BA,Contreras-Vidal JL,Birn R,Braun A

更新日期：2010-06-01 00:00:00

abstract：:Reports of cholecystokinin (CCK) binding and expression of CCK receptors in neonatal rodent spinal cord suggest that CCK may influence neuronal excitability. In patch-clamp recordings from 19/21 ventral horn motoneurons in neonatal (PN 5-12 days) rat spinal cord slices, we noted a slowly rising and prolonged membrane ...

journal_title：Journal of neurophysiology

authors： Oz M,Yang KH,Shippenberg TS,Renaud LP,O'Donovan MJ

更新日期：2007-09-01 00:00:00

abstract：:Human subjects chose between two color-coded reach targets using multicolored checkerboard-like decision cues (DCs) that presented variable amounts of conflicting sensory evidence supporting both target choices. Different DCs contained different numbers of small squares of the two target colors. The most ambiguous DCs...

journal_title：Journal of neurophysiology

authors： Coallier É,Kalaska JF

更新日期：2014-12-01 00:00:00

abstract：:Similar motor regions are activated during voluntarily executed or observed movements. We investigated whether observing movements of one's own hand through a mirror will generate activations in the cortical motor regions of both the moving and nonmoving hands. Using the lateralized readiness potential (LRP), an elect...

journal_title：Journal of neurophysiology

authors： Touzalin-Chretien P,Dufour A

更新日期：2008-07-01 00:00:00

abstract：:Ocular following (OFR) is a short-latency visual stabilization response to the optic flow experienced during self-motion. It has been proposed that it represents the early component of optokinetic nystagmus (OKN) and that it is functionally linked to the vestibularly driven stabilization reflex during translation (tra...

journal_title：Journal of neurophysiology

authors： Adeyemo B,Angelaki DE

更新日期：2005-03-01 00:00:00

abstract：:1. Three parallel maps of the distribution of tuberous electroreceptor inputs are found in the medullary electrosensory lateral line lobe (ELL) of weakly electric fish. Pyramidal cells in each map are known to respond differentially to the frequency of amplitude modulations (AMs) of external electric fields in vivo. W...

journal_title：Journal of neurophysiology

authors： Turner RW,Plant JR,Maler L

更新日期：1996-10-01 00:00:00

abstract：:Recent work in the anterior piriform cortex (aPCX) has demonstrated that cortical odor receptive fields are highly dynamic, showing rapid changes of both firing rate and temporal patterning within relatively few inhalations of an odor, despite relatively maintained, patterned input from olfactory bulb mitral/tufted ce...

journal_title：Journal of neurophysiology

authors： Wilson DA

更新日期：2000-12-01 00:00:00

abstract：:The spider VS-3 slit-sense organ contains two types of primary mechanoreceptor neurons that are morphologically similar but have different electrical behavior. Type A neurons fire only one or two action potentials in response to a mechanical or electrical step of any amplitude above the threshold, whereas type B neuro...

journal_title：Journal of neurophysiology

authors： Torkkeli PH,French AS

更新日期：2002-03-01 00:00:00

abstract：:In addition to its well-known role in the control of saccades, the primate superior colliculus (SC) has been implicated in the processes of target choice for overt orienting movements and for covert spatial attention. We focally inactivated the SC, by muscimol injection, while monkeys selected the target of a smooth p...

journal_title：Journal of neurophysiology

authors： Nummela SU,Krauzlis RJ

更新日期：2010-09-01 00:00:00

abstract：:1. Single-unit and multiunit activities were recorded at the area 17-18 border of each cortical hemisphere in paralyzed cats anesthetized with nitrous oxide supplemented with halothane. Cross-correlation histograms (CCHs) were computed between 86 pairs of single units and 99 pairs of multiunit activities. Visually evo...

journal_title：Journal of neurophysiology

authors： Nowak LG,Munk MH,Nelson JI,James AC,Bullier J

更新日期：1995-12-01 00:00:00

abstract：:Layer IV of rodent primary somatosensory cortex is characterized by an array of whisker-related groups of neurons, known as "barrels." Neurons within each barrel respond best to a particular whisker on the contralateral face, and, on deflection of adjacent whiskers, display relatively weak excitation followed by stron...

journal_title：Journal of neurophysiology

authors： Goldreich D,Kyriazi HT,Simons DJ

更新日期：1999-09-01 00:00:00

abstract：:1. Evidence for local excitatory synaptic connections in CA1 of the rat hippocampus was obtained by recording excitatory postsynaptic potentials (EPSPs) intracellularly from pyramidal cells during local microapplications of glutamate. 2. Experiments were performed in hippocampal slices cut parallel to (transverse slic...

journal_title：Journal of neurophysiology

authors： Christian EP,Dudek FE

更新日期：1988-01-01 00:00:00

abstract：:In rats, whisker trimming during development leads to persistent alterations in the function of cortical barrel circuits and to behavioral deficits later in life. Here we examined how whisker trimming begun either at birth (P0) or on postnatal day 12 (P12), around the onset of whisking behavior, affects receptive fiel...

journal_title：Journal of neurophysiology

authors： Shoykhet M,Land PW,Simons DJ

更新日期：2005-12-01 00:00:00

abstract：:Neural regions in the dorsomedial frontal cortex (DMFC), including the supplementary eye field (SEF) and the presupplementary motor area (pre-SMA), are likely candidates for generating top-down control of saccade target selection. To investigate this, we applied electrical microstimulation to these structures while sa...

journal_title：Journal of neurophysiology

authors： Yang SN,Heinen SJ,Missal M

更新日期：2008-04-01 00:00:00