Contact-evoked changes in EMG activity during human grasp.

abstract：:Glutamate is the primary excitatory transmitter in axons innervating the hypothalamic suprachiasmatic nucleus (SCN) and is responsible for light-induced phase shifts of circadian rhythms generated by the SCN. By using self-innervating single neuron cultures and patch-clamp electrophysiology, we studied metabotropic gl...

journal_title：Journal of neurophysiology

authors： Chen G,van den Pol AN

更新日期：1998-10-01 00:00:00

abstract：:The properties of the vestibuloocular reflex (VOR) when the axis of rotation is behind the eyes and fixation of a near target is required were studied in the monkey. The magnitude of VOR gain in each eye was found to be above 1.0 and near the ideal value for stabilizing a retinal image. Evidence that this large VOR ga...

journal_title：Journal of neurophysiology

authors： Viirre E,Tweed D,Milner K,Vilis T

更新日期：1986-08-01 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：:The anterior branch of N. VIII was sectioned in adult frogs. Two months later the brain was isolated to record in vitro responses in the vestibular nuclei and from the abducens nerves following electric stimulation of the anterior branch of N. VIII or of the posterior canal nerve. Extra- and intracellularly recorded r...

journal_title：Journal of neurophysiology

authors： Goto F,Straka H,Dieringer N

更新日期：2000-07-01 00:00:00

abstract：:The responses of sustaining and dimming fibers were characterized by the time varying firing rates elicited by extrinsic current and flashes of light. These data were simulated by an adaptive integrate-and-fire model. A postimpulse shunt conductance simulated spike-frequency adaptation. The correlation between observe...

journal_title：Journal of neurophysiology

authors： Glantz RM,Schroeter JP

更新日期：2004-07-01 00:00:00

abstract：:Humans quickly and sophisticatedly correct their movements in response to changes in the world, such as when reaching to a target that abruptly changes its location. The vigor of these movement corrections is time-dependent, increasing if the time left to make the correction decreases, which can be explained by optima...

journal_title：Journal of neurophysiology

authors： Oostwoud Wijdenes L,van Beers RJ,Medendorp WP

更新日期：2019-09-01 00:00:00

abstract：:Many laboratories have reported the successful regeneration of neurons across damaged portions of the spinal cord. Associated improvements in hindlimb locomotor movements have been attributed to the formation of functional neuronal connections with the locomotor central pattern generator (CPG). However, regenerating a...

journal_title：Journal of neurophysiology

authors： Yakovenko S,Kowalczewski J,Prochazka A

更新日期：2007-03-01 00:00:00

abstract：:Behavioral and physiological characteristics of standing were studied in nontrained spinal cats and in spinal cats that received daily stand training of the hindlimbs for 12 wk. Training consisted of assisting the cats to stand with full weight support either on both hindlimbs or on one hindlimb (30 min/day, 5 days/wk...

journal_title：Journal of neurophysiology

authors： De Leon RD,Hodgson JA,Roy RR,Edgerton VR

更新日期：1998-07-01 00:00:00

abstract：:Recent evidence has suggested that theta-frequency (4-7 Hz) oscillations around the human anterior cingulate cortex (ACC) and frontal cortex--that is, frontal midline theta (Fm theta) oscillations--may be involved in attentional processes in the brain. However, little is known about the physiological basis of Fm theta...

journal_title：Journal of neurophysiology

authors： Tsujimoto T,Shimazu H,Isomura Y

更新日期：2006-05-01 00:00:00

abstract：:Homosynaptic long-term depression (LTD) of synaptic efficacy was induced in field excitatory postsynaptic potentials by administration of 900 pulses at either 1 or 3 Hz in 2- to 3-wk-old Sprague-Dawley rats. The stimulation was administered via a bipolar stimulating electrode placed immediately adjacent to the recordi...

journal_title：Journal of neurophysiology

authors： Christie BR,Schexnayder LK,Johnston D

更新日期：1997-03-01 00:00:00

abstract：:A spherical approximation technique is presented that affords a mathematical characterization of a virtual space receptive field (VSRF) based on first-spike latency in the auditory cortex of cat. Parameterizing directional sensitivity in this fashion is much akin to the use of difference-of-Gaussian (DOG) functions fo...

journal_title：Journal of neurophysiology

authors： Jenison RL,Reale RA,Hind JE,Brugge JF

更新日期：1998-11-01 00:00:00

abstract：:1. To characterize the temporal dynamic responses of ganglion cells and to define the possible inputs giving rise to their responses in catfish retina, we recorded the ganglion cell responses evoked by 1) a step of light presented in the dark, 2) an incremental and decremental step from a background illumination, and ...

journal_title：Journal of neurophysiology

authors： Sakai HM,Naka K

更新日期：1987-12-01 00:00:00

abstract：:Although frequency-dependent short-term presynaptic plasticity has been of long-standing interest, most studies have emphasized modulation of the synchronous, phasic component of transmitter release, most evident with a single or a few presynaptic stimuli. Asynchronous transmitter release, vesicle fusion not closely t...

journal_title：Journal of neurophysiology

authors： Chang CY,Mennerick S

更新日期：2010-01-01 00:00:00

abstract：:An important question in neuroscience is whether and how temporal patterns and fluctuations in neuronal spike trains contribute to information processing in the cortex. We have addressed this issue in the memory-related circuits of the prefrontal cortex by analyzing spike trains from a database of 229 neurons recorded...

journal_title：Journal of neurophysiology

authors： Compte A,Constantinidis C,Tegner J,Raghavachari S,Chafee MV,Goldman-Rakic PS,Wang XJ

更新日期：2003-11-01 00:00:00

abstract：:The amino acid sequence of the N-methyl-D-aspartate (NMDA) receptor subunit NR2B from the brown ghost knife fish Apteronotus leptorhynchus has been determined and compared with the sequence of the murine NR2B. This comparison revealed high levels of sequence conservation throughout the ligand binding and membrane span...

journal_title：Journal of neurophysiology

authors： Harvey-Girard E,Dunn RJ

更新日期：2003-02-01 00:00:00

abstract：:The superior colliculus (SC) provides signals for the generation of saccades via a direct pathway to the brain stem burst generator (BG). In addition, it sends saccade-related activity to the BG indirectly through the cerebellum via a relay in the nucleus reticularis tegmenti pontis (NRTP). Lesions of the oculomotor v...

journal_title：Journal of neurophysiology

authors： Kaneko CR,Fuchs AF

更新日期：2006-06-01 00:00:00

abstract：:Changes in the environment require rapid modification or inhibition of ongoing behavior. We used the stop-signal paradigm and intracranial recordings to investigate response preparation, inhibition, and monitoring of task-relevant information. Electrocorticographic data were recorded in eight patients with electrodes ...

journal_title：Journal of neurophysiology

authors： Fonken YM,Rieger JW,Tzvi E,Crone NE,Chang E,Parvizi J,Knight RT,Krämer UM

更新日期：2016-04-01 00:00:00

abstract：:Several studies have demonstrated that motor adaptations to a novel task environment can be transferred between limbs. Such interlimb transfer of motor commands is consistent with the notion of centrally driven strategies that can be generalized across different frames of reference. So far, studies of interlimb transf...

journal_title：Journal of neurophysiology

authors： Houldin A,Chua R,Carpenter MG,Lam T

更新日期：2012-08-01 00:00:00

abstract：:The nucleus tractus solitarii (nTS) is the initial central termination site for visceral afferents and is important for modulation and integration of multiple reflexes including cardiorespiratory reflexes. Glutamate is the primary excitatory neurotransmitter in the nTS and is removed from the extracellular milieu by e...

journal_title：Journal of neurophysiology

authors： Matott MP,Ruyle BC,Hasser EM,Kline DD

更新日期：2016-03-01 00:00:00

abstract：:Retinal Müller cells are highly permeable to potassium as a consequence of their intrinsic membrane properties. Therefore these cells are able to play an important role in maintaining potassium homeostasis in the vertebrate retina during light-induced neuronal activity. Polyamines and other factors present in Müller c...

journal_title：Journal of neurophysiology

authors： Solessio E,Rapp K,Perlman I,Lasater EM

更新日期：2001-04-01 00:00:00

abstract：:1. In alert macaque monkeys, multiunit activity is encountered in an alternating sequence of silent and spontaneously active zones as an electrode is lowered through the striate cortex (V1). 2. Individual neurons that are spontaneously active in the dark usually have a maintained discharge in the light. Because both t...

journal_title：Journal of neurophysiology

authors： Snodderly DM,Gur M

更新日期：1995-11-01 00:00:00

abstract：:We have found new evidence for gamma-aminobutyric acid (GABA)-induced intrinsic optical changes associated with a voltage-sensitive dye signal in the early embryonic chick brain stem slice. The slices were prepared from 8-day-old embryos, and they were stained with a voltage-sensitive dye (NK2761). Pressure ejection o...

journal_title：Journal of neurophysiology

authors： Momose-Sato Y,Sato K,Hirota A,Kamino K

更新日期：1998-04-01 00:00:00

abstract：:1. Some scientists reported that the simple spike (SS) activity was transiently depressed after climbing fiber input, but others reported that predominant population of Purkinje cells increased their SS activity after the complex spike (CS). In the present study, SS activity after spontaneous CS was compared before an...

journal_title：Journal of neurophysiology

authors： Sato Y,Miura A,Fushiki H,Kawasaki T

更新日期：1993-04-01 00:00:00

abstract：:1. Pharmacologic agents known to modulate long-term potentiation (LTP) at the mossy fiber-to-CA3 pyramidal neuron synapse were tested for their effects on the activity of single voltage-gated calcium channels in adult CA3 pyramidal neurons. 2. Single-channel current recordings of three types of voltage-gated calcium c...

journal_title：Journal of neurophysiology

authors： Fisher R,Johnston D

更新日期：1990-10-01 00:00:00

abstract：:Complex movements are generally thought to consist of a series of simpler elements. If this is so, how does the sensorimotor system assemble the pieces? This study recorded and evaluated sequences of arm movements to various targets placed in three-dimensional (3D) space. Subjects performed sequences consisting of sin...

journal_title：Journal of neurophysiology

authors： Klein Breteler MD,Hondzinski JM,Flanders M

更新日期：2003-06-01 00:00:00

abstract：:During priming of pop-out, performance at discriminating a pop-out feature target in visual search is affected by whether the target on the previous trial was defined by the same feature as on the upcoming trial. Recent studies suggest that priming of pop-out relies on attentional processes. With the use of simultaneo...

journal_title：Journal of neurophysiology

authors： Taylor PC,Muggleton NG,Kalla R,Walsh V,Eimer M

更新日期：2011-12-01 00:00:00

abstract：:Visual search is a ubiquitous visual behavior, and efficient search is essential for survival. Different cognitive models have explained the speed and accuracy of search based either on the dynamics of attention or on similarity of item representations. Here, we examined the extent to which performance on a visual sea...

journal_title：Journal of neurophysiology

authors： Cohen MA,Alvarez GA,Nakayama K,Konkle T

更新日期：2017-01-01 00:00:00

abstract：:Older adults are at a high risk of falls, and most falls occur during locomotor activities like walking. This study aimed to improve our understanding of changes in neuromuscular control associated with increased risk of falls in older adults in the presence of dynamic balance challenges during walking. Motor module (...

journal_title：Journal of neurophysiology

authors： Allen JL,Franz JR

更新日期：2018-11-01 00:00:00

abstract：:The exercise pressor reflex (EPR) is generated by group III and IV muscle afferents during exercise to increase cardiovascular function. Muscle contraction is triggered by ACh, which is metabolized into choline that could serve as a signal of exercise-induced activity. We demonstrate that ACh can induce current in mus...

journal_title：Journal of neurophysiology

authors： Baxter JC,Ramachandra R,Mayne DR,Elmslie KS

更新日期：2014-09-15 00:00:00

abstract：:Glutamatergic inputs clustered over approximately 20-40 microm can elicit local N-methyl-D-aspartate (NMDA) spike/plateau potentials in terminal dendrites of cortical pyramidal neurons, inspiring the notion that a single terminal dendrite can function as a decision-making computational subunit. A typical terminal basa...

journal_title：Journal of neurophysiology

authors： Major G,Polsky A,Denk W,Schiller J,Tank DW

更新日期：2008-05-01 00:00:00