Proximal arm kinematics affect grip force-load force coordination.

abstract：:The axons that project into the striatum are known to segregate according to macroscopic cortical systems; however, the within-region organization of these fibers has yet to be described in humans. We used in vivo fiber tractography, in neurologically healthy adults, to map white matter bundles that originate in diffe...

journal_title：Journal of neurophysiology

authors： Verstynen TD,Badre D,Jarbo K,Schneider W

更新日期：2012-06-01 00:00:00

abstract：:Contribution of supragranular layers to sensory processing and plasticity in adult rat barrel cortex. J. Neurophysiol. 80: 3261-3271, 1998. In mature rat primary somatic sensory cortical area (SI) barrel field cortex, the thalamic-recipient granular layer IV neurons project especially densely to layers I, II, III, and...

journal_title：Journal of neurophysiology

authors： Huang W,Armstrong-James M,Rema V,Diamond ME,Ebner FF

更新日期：1998-12-01 00:00:00

abstract：:Gain modulation is a ubiquitous phenomenon in cortical neurons, providing flexibility to operate under changing conditions. The prevailing view is that this modulation reflects a change in the relationship between mean input and output firing rate brought about by variation in neuronal membrane characteristics. An alt...

journal_title：Journal of neurophysiology

authors： Azouz R

更新日期：2005-10-01 00:00:00

abstract：:Three nonspiking interneurons are described in this paper that influence the activity of the motor neurons of three muscles of the proximal leg joints of the stick insect. Interneurons were recorded and stained intracellularly by glass microelectrodes; motor neurons were recorded extracellularly with oil-hook electrod...

journal_title：Journal of neurophysiology

authors： Brunn DE

更新日期：1998-06-01 00:00:00

abstract：:Humans maneuver easily over uneven terrain. To maintain smooth and efficient gait the motor system needs to adapt the locomotor output to the walking environment. In the present study we investigate the role of sensory feedback in adjusting the soleus muscle activity during overground walking in 19 healthy volunteers....

journal_title：Journal of neurophysiology

authors： Af Klint R,Nielsen JB,Sinkjaer T,Grey MJ

更新日期：2009-04-01 00:00:00

abstract：:To trigger action potentials in neurons, most investigators use electrical or chemical stimulation. Here we describe an optical stimulation method based on semi-synthetic light-activated ion channels. These SPARK (synthetic photoisomerizable azobenzene-regulated K(+)) channels consist of a synthetic azobenzene-contain...

journal_title：Journal of neurophysiology

authors： Chambers JJ,Banghart MR,Trauner D,Kramer RH

更新日期：2006-11-01 00:00:00

abstract：:We studied two human subjects with total deafferentation of one upper limb secondary to traumatic multiple cervical root avulsions. Both subjects developed a phantom limb and underwent elective amputation of the paralyzed, deafferentated limb. Psychophysical study revealed in each subject an area of skin in the pector...

journal_title：Journal of neurophysiology

authors： Kew JJ,Halligan PW,Marshall JC,Passingham RE,Rothwell JC,Ridding MC,Marsden CD,Brooks DJ

更新日期：1997-05-01 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. The effects of inhibitory postsynaptic potential (IPSP) barrages on coding of sinusoidal length inputs were investigated in slowly and rapidly adapting stretch receptors of crayfish (RM1 and RM2, respectively). To examine the contribution of postsynaptic firings, a description was obtained of the temporal correlati...

journal_title：Journal of neurophysiology

authors： Barrio LC,Buño W

更新日期：1990-06-01 00:00:00

abstract：:Variations in cortical oscillations in the alpha (7-14 Hz) and beta (15-29 Hz) range have been correlated with attention, working memory, and stimulus detection. The mu rhythm recorded with magnetoencephalography (MEG) is a prominent oscillation generated by Rolandic cortex containing alpha and beta bands. Despite its...

journal_title：Journal of neurophysiology

authors： Jones SR,Pritchett DL,Sikora MA,Stufflebeam SM,Hämäläinen M,Moore CI

更新日期：2009-12-01 00:00:00

abstract：:Leopard frog saccular hair cells exhibit an electrical resonance in response to a depolarizing stimulus that has been proposed to contribute to the tuning properties of the frog sacculus by acting as an electrical band-pass filter. With the whole cell patch-clamp technique, we have investigated the effect of temperatu...

journal_title：Journal of neurophysiology

authors： Smotherman MS,Narins PM

更新日期：1998-01-01 00:00:00

abstract：:Recent studies have shown that the initial responses evoked by a stimulus in neurons of primary visual cortex are dominated by low spatial frequency information in the image, whereas finer spatial scales dominate later in the response. Such phenomena could arise from the dynamics of receptive field (RF) size at early ...

journal_title：Journal of neurophysiology

authors： Malone BJ,Kumar VR,Ringach DL

更新日期：2007-01-01 00:00:00

abstract：:1. Single-unit recordings were made, under moderate gaseous anesthesia (33% O2-66% N2O + 0.5/0.6% halothane), in the ventrobasal (VB) thalamic complex of rats (n = 42) with a mononeuropathy created 2-3 wk beforehand, by four loose ligatures around the common sciatic nerve. Before the recording session, three behaviora...

journal_title：Journal of neurophysiology

authors： Guilbaud G,Benoist JM,Jazat F,Gautron M

更新日期：1990-11-01 00:00:00

abstract：:The central axons of peripherally regenerated Abeta primary sensory neurons were impaled in the dorsal columns of alpha-chloralose-anesthetized cats 9-12 mo after axotomy. The adequate peripheral stimulus was determined, and the afferent fibers intracellularly stimulated while simultaneously recording the resulting co...

journal_title：Journal of neurophysiology

authors： Koerber HR,Mirnics K,Kavookjian AM,Light AR

更新日期：1999-04-01 00:00:00

abstract：:1. The discharge patterns of 40 neurons in the central nucleus of the inferior colliculus (ICC) of the chinchilla were evaluated before and after acute cochlea trauma from intense tone exposure. Single-unit recordings were obtained from neurons in the ICC contralateral to the sound-stimulated ear. Cochlear trauma was ...

journal_title：Journal of neurophysiology

authors： Wang J,Salvi RJ,Powers N

更新日期：1996-01-01 00:00:00

abstract：:The general objectives of our research, presented in this series of papers, were to develop a computational model of the brain stem respiratory neural network and to explore possible neural mechanisms that provide the genesis of respiratory oscillations and the specific firing patterns of respiratory neurons. The pres...

journal_title：Journal of neurophysiology

authors： Rybak IA,Paton JF,Schwaber JS

更新日期：1997-04-01 00:00:00

abstract：:Cortical pyramidal cells are constantly bombarded by synaptic activity, much of which arises from other cortical neurons, both in normal conditions and during epileptic seizures. The action potentials generated by barrages of synaptic activity may exhibit a variable site of origin. Here we performed simultaneous whole...

journal_title：Journal of neurophysiology

authors： Shu Y,Duque A,Yu Y,Haider B,McCormick DA

更新日期：2007-01-01 00:00:00

abstract：:Synaptic dynamics comprise a variety of interacting processes acting on a wide range of time scales. This enables a synapse to perform a large array of computations, from temporal and spatial filtering to associative learning. In this study, we describe how changing synaptic gain via long-term plasticity can act to sh...

journal_title：Journal of neurophysiology

authors： Lewis JE,Maler L

更新日期：2004-02-01 00:00:00

abstract：:Ipsilaterally projecting spinal excitatory interneurons (EINs) generate the hemisegmental rhythmic locomotor activity in lamprey, while the commissural interneurons ensure proper left-right alternation. 5-HT is a potent modulator of the locomotor rhythm and is endogenously released from the spinal cord during fictive ...

journal_title：Journal of neurophysiology

authors： Biró Z,Hill RH,Grillner S

更新日期：2006-08-01 00:00:00

abstract：:1. The small cardioactive peptides (SCPs) are potent modulatory neuropeptides in Aplysia. Buccal ganglia neurons B1 and B2 are the largest neurons that exhibit SCP-like immunoreactivity. High-pressure liquid chromatography (HPLC)-bioassay and in vivo radiolabeling procedures confirm that these neurons contain and synt...

journal_title：Journal of neurophysiology

authors： Lloyd PE,Kupfermann I,Weiss KR

更新日期：1988-05-01 00:00:00

abstract：:1. There is a long-standing debate about whether the large spiny cells in the hilar region of the hippocampus should be classified as pyramidal cells of Ammon's horn or as a distinct cell type of the dentate gyrus. The rationale for grouping these hilar neurons (termed "mossy cells") with pyramidal cells of Ammon's ho...

journal_title：Journal of neurophysiology

authors： Buckmaster PS,Strowbridge BW,Schwartzkroin PA

更新日期：1993-10-01 00:00:00

abstract：:1. The first experiment of this study determined the effects of low-frequency stimulation of the monkey superior colliculus on spontaneous saccades in the dark. Stimulation trains, subthreshold for eliciting short-latency fixed-vector saccades, were highly effective at biasing the metrics (direction and amplitude) of ...

journal_title：Journal of neurophysiology

authors： Glimcher PW,Sparks DL

更新日期：1993-03-01 00:00:00

abstract：:While the cochlear implant has successfully restored hearing to many deaf patients, it cannot benefit those without a functional auditory nerve or an implantable cochlea. As an alternative, the auditory midbrain implant (AMI) has been developed and implanted into deaf patients. Consisting of a single-shank array, the ...

journal_title：Journal of neurophysiology

authors： Straka MM,Schendel D,Lim HH

更新日期：2013-08-01 00:00:00

abstract：:In acute experiments performed in decerebrated and spinalized (T13) cats, an intraspinal injection of clonidine, a noradrenergic agonist, restricted to mid-lumbar segments L3-L4, can induce hindlimb locomotion, whereas yohimbine, a noradrenergic antagonist, can block spinal locomotion, and a second spinal lesion at L4...

journal_title：Journal of neurophysiology

authors： Langlet C,Leblond H,Rossignol S

更新日期：2005-05-01 00:00:00

abstract：:1. We used period/amplitude (PA) analysis to survey electroencephalography (EEG) across vigilance states in the Sprague-Dawley rat. We found a fast cortical EEG frequency band, which we designate rho, whose wave amplitude in rapid eye movement (REM) was elevated above the levels in both waking and nonrapid eye movemen...

journal_title：Journal of neurophysiology

authors： Campbell IG,Feinberg I

更新日期：1993-04-01 00:00:00

abstract：:Dual whole cell patch-clamp recordings in rat nucleus accumbens, the main component of the ventral striatum, were made to assess the presence of synaptic interconnections between medium-sized spiny neurons, a group of GABAergic and peptidergic neurons that constitute the principal cells of the striatum. Neurons were s...

journal_title：Journal of neurophysiology

authors： Taverna S,van Dongen YC,Groenewegen HJ,Pennartz CM

更新日期：2004-03-01 00:00:00

abstract：:The aim of this study was to investigate how humans correct ongoing arm movements while standing. Specifically, we sought to understand whether the postural adjustments in the legs required for online corrections of arm movements are predictive or rely on feedback from the moving limb. To answer this question we measu...

journal_title：Journal of neurophysiology

authors： Leonard JA,Gritsenko V,Ouckama R,Stapley PJ

更新日期：2011-05-01 00:00:00

abstract：:Sensory inputs from muscle, cutaneous, and joint afferents project to the spinal cord, where they are able to affect ongoing locomotor activity. Activation of sensory input can initiate or prolong bouts of locomotor activity depending on the identity of the sensory afferent activated and the timing of the activation w...

journal_title：Journal of neurophysiology

authors： Bui TV,Brownstone RM

更新日期：2015-04-01 00:00:00

abstract：:The problem of how the nervous system fuses sensory information from multiple modalities for upright stance control remains largely unsolved. It is well established that the visual, vestibular, and somatosensory modalities provide position and rate (e.g., velocity, acceleration) information for estimation of body dyna...

journal_title：Journal of neurophysiology

authors： Jeka J,Kiemel T,Creath R,Horak F,Peterka R

更新日期：2004-10-01 00:00:00

abstract：:Trace eyeblink classical conditioning (tEBCC) can be accelerated by making training trials contingent on the naturally generated hippocampal 3- to 7-Hz theta rhythm. However, it is not well-understood how the presence (or absence) of theta affects stimulus-driven changes within the hippocampus and how it correlates wi...

journal_title：Journal of neurophysiology

authors： Darling RD,Takatsuki K,Griffin AL,Berry SD

更新日期：2011-05-01 00:00:00