Estimating use-dependent synaptic gain in autonomic ganglia by computational simulation and dynamic-clamp analysis.

abstract：:Manipulating a cup by the handle requires compensating for the torque induced by the moment of the mass of the cup relative to the location of the handle. In the present study, we investigated the control strategy of subjects asked to perform grip-lift movements with an object with center of mass located away from the...

journal_title：Journal of neurophysiology

authors： Crevecoeur F,Giard T,Thonnard JL,Lefèvre P

更新日期：2011-12-01 00:00:00

abstract：:1. Depolarization-induced elevations of intracellular calcium concentration ([Ca2+]i) were examined in slice-cultured hippocampal pyramidal and nonpyramidal cells of the CA3 region by combined intracellular and multisite fura-2 recording techniques. 2. In pyramidal cells, spiking activity induced by depolarizing curre...

journal_title：Journal of neurophysiology

authors： Knöpfel T,Gähwiler BH

更新日期：1992-09-01 00:00:00

abstract：:Eigenmannia, a genus of weakly electric fish, exhibits a specialized behavior known as the jamming avoidance response (JAR). The JAR results in a categorical difference between Eigenmannia that are in groups of conspecifics and those that are alone. Fish in groups exhibit the JAR behavior and thereby experience ongoin...

journal_title：Journal of neurophysiology

authors： Ramcharitar JU,Tan EW,Fortune ES

更新日期：2006-11-01 00:00:00

abstract：:How does the motor system choose the speed for any given movement? Many current models assume a process that finds the optimal balance between the costs of moving fast and the rewards of achieving the goal. Here, we show that such models also need to take into account a prior representation of preferred movement speed...

journal_title：Journal of neurophysiology

authors： Hammerbeck U,Yousif N,Greenwood R,Rothwell JC,Diedrichsen J

更新日期：2014-01-01 00:00:00

abstract：:Excitatory postsynaptic potentials (EPSPs) were evoked in large populations of motoneurons by impulses in single Ia- and group II fibers and recorded from L7 and S1 ventral roots by means of a sucrose-gap technique and spike-triggered averaging, as previously described (33, 34). Factors known to influence conduction a...

journal_title：Journal of neurophysiology

authors： Lüscher H,Ruenzel PW,Henneman E

更新日期：1983-11-01 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：:We have previously reported dual effects of mu-opioids on N-methyl-D-aspartate (NMDA)-receptor-mediated synaptic events in the hippocampal dentate gyrus: an indirect facilitating effect via suppression of GABAergic interneurons (disinhibition) and a direct inhibitory effect in the presence of gamma-aminobutyric acid-A...

journal_title：Journal of neurophysiology

authors： Xie CW,Lewis DV

更新日期：1997-08-01 00:00:00

abstract：:1. Spike rates of cells in the cat's lateral superior olive (LSO) depend on interaural level differences (ILDs) and envelope interaural time differences (ITDs) of amplitude-modulated tones presented to both ears. We previously proposed that these sensitivities arise from a common mechanism, which is the IE binaural in...

journal_title：Journal of neurophysiology

authors： Joris PX

更新日期：1996-10-01 00:00:00

abstract：:We developed a sway-referenced system for sitting to highlight the role of vestibular and visual contributions to trunk control. Motor control was investigated by measuring trunk kinematics in the frontal plane while manipulating visual availability and introducing a concurrent cognitive task. We examined motor learni...

journal_title：Journal of neurophysiology

authors： Goodworth AD,Tetreault K,Lanman J,Klidonas T,Kim S,Saavedra S

更新日期：2018-07-01 00:00:00

abstract：:The majority of cerebral signals destined for the cerebellum are handed over by the pontine nuclei (PN), which thoroughly reorganize the neocortical topography. The PN maps neocortical signals of wide-spread origins into adjacent compartments delineated by spatially precise distribution of cortical terminals and posts...

journal_title：Journal of neurophysiology

authors： Möck M,Butovas S,Schwarz C

更新日期：2006-06-01 00:00:00

abstract：:Paired-pulse transcranial magnetic stimulation (TMS) can be used to examine intracortical inhibition in primary motor cortex (M1), termed short-interval intracortical inhibition (SICI). To our knowledge, SICI has only been demonstrated in contralateral motor evoked potentials (MEPs). Ipsilateral MEPs (iMEPs) are assum...

journal_title：Journal of neurophysiology

authors： McCambridge AB,Stinear JW,Byblow WD

更新日期：2016-03-01 00:00:00

abstract：:Current-clamp recordings were made from the deep cerebellar nuclei (DCN) of 12- to 15-day-old rats to understand the factors that mediate intrinsic spontaneous firing patterns. All of the cells recorded were spontaneously active with spiking patterns ranging continuously from regular spiking to spontaneous bursting wi...

journal_title：Journal of neurophysiology

authors： Aizenman CD,Linden DJ

更新日期：1999-10-01 00:00:00

abstract：:Avian auditory and vestibular hair cells regenerate after damage by ototoxic drugs, but until recently there was little evidence that regenerated vestibular hair cells function normally. In an earlier study we showed that the vestibuloocular reflex (VOR) is eliminated with aminoglycoside antibiotic treatment and recov...

journal_title：Journal of neurophysiology

authors： Goode CT,Carey JP,Fuchs AF,Rubel EW

更新日期：1999-03-01 00:00:00

abstract：:The GABA withdrawal syndrome (GWS) is a model of local status epilepticus consecutive to the interruption of a prolonged GABA infusion into the rat somatomotor cortex. Bursting patterns in slices from GWS rats include intrinsic bursts of action potentials (APs) induced by intracellular depolarizing current injection a...

journal_title：Journal of neurophysiology

authors： Silva-Barrat C,Szente M,Menini C,Velluti JC,Champagnat J

更新日期：2001-05-01 00:00:00

abstract：:Several previous studies have shown the existence of Up and Down states and have linked their magnitude (e.g., depolarization level) to the size of sensory-evoked responses. Here, we studied how the temporal dynamics of such states influence the sensory-evoked response to vibrissa deflection. Under alpha-chloralose an...

journal_title：Journal of neurophysiology

authors： Haslinger R,Ulbert I,Moore CI,Brown EN,Devor A

更新日期：2006-09-01 00:00:00

abstract：:Recent advances in recording and computing hardware have enabled laboratories to record the electrical activity of multiple brain regions simultaneously. Lagging behind these technical advances, however, are the methods needed to rapidly produce microdrives and head-caps that can flexibly accommodate different recordi...

journal_title：Journal of neurophysiology

authors： Headley DB,DeLucca MV,Haufler D,Paré D

更新日期：2015-04-01 00:00:00

abstract：:Cervical dystonia (CD) is a movement disorder that involves involuntary turning and twisting of the neck caused by abnormal muscle contraction. Deep brain stimulation (DBS) in the globus pallidus internus (GPi) is used to treat both CD and the motor symptoms of Parkinson's disease (PD). It has been suggested that the ...

journal_title：Journal of neurophysiology

authors： Tang JK,Moro E,Mahant N,Hutchison WD,Lang AE,Lozano AM,Dostrovsky JO

更新日期：2007-08-01 00:00:00

abstract：:Our perception of the positions of objects in our surroundings is surprisingly unaffected by movements of the eyes, head, and body. This suggests that the brain has a mechanism for maintaining perceptual stability, based either on the spatial relationships among visible objects or internal copies of its own motor comm...

journal_title：Journal of neurophysiology

authors： Churan J,Guitton D,Pack CC

更新日期：2011-10-01 00:00:00

abstract：:1. Passive hyperpolarizing potentials (PHPs) have been recorded intracellularly from goldfish medullary neurons in the vicinity of the Mauthner cell (M-cell). They are evoked when this cell is activated antidromically by stimulation of the spinal cord, and orthodromically via the ipsilateral eighth nerve; when appropr...

journal_title：Journal of neurophysiology

authors： Korn H,Faber DS

更新日期：1975-03-01 00:00:00

abstract：:It has been suggested that the motor system may circumvent the difficulty of controlling many degrees of freedom in the musculoskeletal apparatus by generating motor outputs through a combination of discrete muscle synergies. How a discretely organized motor system compensates for diverse perturbations has remained el...

journal_title：Journal of neurophysiology

authors： Cheung VC,d'Avella A,Bizzi E

更新日期：2009-03-01 00:00:00

abstract：:Early visual motion signals are local and one-dimensional (1-D). For specification of global two-dimensional (2-D) motion vectors, the visual system should appropriately integrate these signals across orientation and space. Previous neurophysiological studies have suggested that this integration process consists of tw...

journal_title：Journal of neurophysiology

authors： Amano K,Takeda T,Haji T,Terao M,Maruya K,Matsumoto K,Murakami I,Nishida S

更新日期：2012-06-01 00:00:00

abstract：:1. The modulation of the voltage-activated Ca2+ current by the neuropeptide Phe-Met-Arg-Phe-NH2 (FMRFa) was investigated in dissociated central neurons from Helix aspersa using whole-cell voltage-clamp recording techniques. External Ba2+ was always used as the charge carrier in this study, and the intracellular Ca2+ c...

journal_title：Journal of neurophysiology

authors： Yakel JL

更新日期：1991-06-01 00:00:00

abstract：:We hypothesized that epilepsy affects the activity of the autonomic nervous system even in the absence of seizures, which should manifest as differences in heart rate variability (HRV) and cardiac cycle. To test this hypothesis, we investigated ECG traces of 91 children and adolescents with generalized epilepsy and 25...

journal_title：Journal of neurophysiology

authors： Sivakumar SS,Namath AG,Tuxhorn IE,Lewis SJ,Galán RF

更新日期：2016-04-01 00:00:00

abstract：:An inhibitory role for strychnine-sensitive glycine-gated chloride channels (GlyRs) in mature hippocampus is beginning to be appreciated. We have reported previously that CA1 pyramidal cells and GABAergic interneurons recorded in 3- to 4-wk-old rat hippocampal slices express functional GlyRs, dispelling previous misco...

journal_title：Journal of neurophysiology

authors： Song W,Chattipakorn SC,McMahon LL

更新日期：2006-04-01 00:00:00

abstract：:Previous studies have reported an important relationship between increasing age, vestibular impairment, and increased risk of falls. Recently, noisy galvanic vestibular stimulation (nGVS) has been shown to improve postural control in older adults during and potentially following stimulation. However, this effect of nG...

journal_title：Journal of neurophysiology

authors： Nooristani M,Bigras C,Lafontaine L,Bacon BA,Maheu M,Champoux F

更新日期：2020-12-09 00:00:00

abstract：:1. We examined excitation and the facilitatory effect on the heat responses induced by histamine in visceral polymodal receptors with the use of the canine testis-spermatic nerve preparation in vitro. 2. The proportion of units that showed excitation (> 10 impulses 1 min after application of histamine was initiated) i...

journal_title：Journal of neurophysiology

authors： Koda H,Minagawa M,Si-Hong L,Mizumura K,Kumazawa T

更新日期：1996-09-01 00:00:00

abstract：:Octopus arms, as well as other muscular hydrostats, are characterized by a very large number of degrees of freedom and a rich motion repertoire. Over the years, several attempts have been made to elucidate the interplay between the biomechanics of these organs and their control systems. Recent developments in electrop...

journal_title：Journal of neurophysiology

authors： Yekutieli Y,Mitelman R,Hochner B,Flash T

更新日期：2007-09-01 00:00:00

abstract：:The responses of many neurons in primary visual cortex are modulated by stimuli outside the classical receptive field in ways that may contribute to integrative processes like scene segmentation. To explore this issue, single-unit neuronal responses were recorded in monkey cortical areas V1 and V2 to visual stimuli co...

journal_title：Journal of neurophysiology

authors： Marcus DS,Van Essen DC

更新日期：2002-11-01 00:00:00

abstract：:It has been shown that tetanic stimulation of area 2 of the somatosensory cortex produces long-term potentiation in neurons in area 4gamma, and this has been suggested as the basis of learning new motor skills. The purpose of this study was to further elucidate the characteristics of this projection by the use of evok...

journal_title：Journal of neurophysiology

authors： Caria MA,Kaneko T,Kimura A,Asanuma H

更新日期：1997-06-01 00:00:00

abstract：:1. Single motor axons innervating human toe extensor muscles were selectively stimulated through a tungsten microelectrode inserted percutaneously into the peroneal nerve. Twitch and tetanic forces were measured from a strain gauge over the proximal phalanx of the toe generating the greatest force. Twitch data were ob...

journal_title：Journal of neurophysiology

authors： Macefield VG,Fuglevand AJ,Bigland-Ritchie B

更新日期：1996-06-01 00:00:00