What do synergies do? Effects of secondary constraints on multidigit synergies in accurate force-production tasks.

abstract：:Pyramidal cells in the dorsal cochlear nucleus (DCN) show three characteristic discharge patterns in response tones: pauser, buildup, and regular firing. Experimental evidence suggests that a rapidly inactivating K+ current (I(KIF)) plays a critical role in generating these discharge patterns. To explore the role of I...

journal_title：Journal of neurophysiology

authors： Kanold PO,Manis PB

更新日期：2001-02-01 00:00:00

abstract：:The somatosensory temporal discrimination threshold (STDT) has been used in recent years to investigate time processing of sensory information, but little is known about the physiological correlates of somatosensory temporal discrimination. The objective of this study was to investigate whether the time interval requi...

journal_title：Journal of neurophysiology

authors： Leodori G,Formica A,Zhu X,Conte A,Belvisi D,Cruccu G,Hallett M,Berardelli A

更新日期：2017-10-01 00:00:00

abstract：:Two main types of small eye movements occur during gaze fixation: microsaccades and slow ocular drifts. While microsaccade generation has been relatively well studied, ocular drift control mechanisms are unknown. Here we explored the degree to which monkey smooth eye movements, on the velocity scale of slow ocular dri...

journal_title：Journal of neurophysiology

authors： Skinner J,Buonocore A,Hafed ZM

更新日期：2019-02-01 00:00:00

abstract：:EEG generator-a model of potentials in a volume conductor. The potential recorded over the cortex electro-corticogram (ECoG) or over the scalp [electroencephalograph (EEG)] derives from the activity of many sources known as "EEG generators." The recorded amplitude is basically a function of the unitary potential of a ...

journal_title：Journal of neurophysiology

authors： Avitan L,Teicher M,Abeles M

更新日期：2009-11-01 00:00:00

abstract：:Adaptation of movement may be driven by the difference between planned and actual motor performance, or the difference between expected and actual sensory consequences of movement. To identify how the nervous system differentially uses these signals, we asked: does motor adaptation occur when movement errors are irrel...

journal_title：Journal of neurophysiology

authors： Schaefer SY,Shelly IL,Thoroughman KA

更新日期：2012-02-01 00:00:00

abstract：:Our group set out to develop a sensitive technique, capable of detecting output changes from the posterior fossa following a motor acquisition task. Transcranial magnetic stimulation (TMS) was applied over the right cerebellar cortex 5 ms in advance of test stimuli over the left cerebral motor cortex (M1), suppressing...

journal_title：Journal of neurophysiology

authors： Baarbé J,Yielder P,Daligadu J,Behbahani H,Haavik H,Murphy B

更新日期：2014-02-01 00:00:00

abstract：:A lamprey maintains the dorsal-side-up orientation due to the activity of postural control system driven by vestibular input. Visual input can affect the body orientation: illumination of one eye evokes ipsilateral roll tilt. An important element of the postural network is the reticulospinal (RS) neurons transmitting ...

journal_title：Journal of neurophysiology

authors： Deliagina TG,Fagerstedt P

更新日期：2000-02-01 00:00:00

abstract：:1. The extracellular activity of 45 antidromically identified spinocervical tract (SCT) neurons responsive to light mechanical stimulation of the glabrous surfaces of the forepaw was examined in raccoons anesthetized with pentobarbital sodium. An additional seven neurons had peripheral receptive fields (RFs) located o...

journal_title：Journal of neurophysiology

authors： Hirata H,Pubols BH Jr

更新日期：1989-01-01 00:00:00

abstract：:The aim of the study was to examine whether the sustained increases in the excitability of afferent fibers traversing the dorsal columns evoked by their polarization depend on the branching points of these fibers. To this end, the effects of epidural polarization were compared in four spinal regions in deeply anesthet...

journal_title：Journal of neurophysiology

authors： Li Y,Hari K,Lucas-Osma AM,Fenrich KK,Bennett DJ,Hammar I,Jankowska E

更新日期：2020-07-01 00:00:00

abstract：:We studied the effect of eye position on visual and pursuit-related activity in neurons in the superior temporal sulcus of the macaque monkey. Altogether, 109 neurons from the middle temporal area (area MT) and the medial superior temporal area (area MST) were tested for influence of eye position on their stimulus-dri...

journal_title：Journal of neurophysiology

authors： Bremmer F,Ilg UJ,Thiele A,Distler C,Hoffmann KP

更新日期：1997-02-01 00:00:00

abstract：:It has been suggested that successively presented sounds that are perceived as separate auditory streams are represented by separate populations of neurons. Mostly, spectral separation in different peripheral filters has been identified as the cue for segregation. However, stream segregation based on temporal cues is ...

journal_title：Journal of neurophysiology

authors： Itatani N,Klump GM

更新日期：2011-01-01 00:00:00

abstract：:1. Behavioral studies in the monkey and clinical studies in humans show that some visuomotor functions are spared in case of a V1 lesion. This residual vision appears to be subserved at least partially by visual activity in extrastriate cortex. Earlier studies have demonstrated that neurons in area V2 lose their visua...

journal_title：Journal of neurophysiology

authors： Girard P,Salin PA,Bullier J

更新日期：1991-11-01 00:00:00

abstract：:1. Ca(2+)-dependent K+ currents were studied in large pyramidal neurons (Betz cells) from layer V of cat sensorimotor cortex by use of an in vitro brain slice and single microelectrode voltage clamp. The Ca(2+)-dependent outward current was taken as the difference current obtained before and after blockade of Ca2+ inf...

journal_title：Journal of neurophysiology

authors： Schwindt PC,Spain WJ,Crill WE

更新日期：1992-01-01 00:00:00

abstract：:1. The effects of the di- and trivalent trace metal cations, Pb2+, Zn2+, and Al3+, on voltage-activated calcium channel currents recorded from cultured rat dorsal root ganglion neurons were determined. 2. All three cations blocked transient and sustained components of the voltage-gated calcium channel currents elicite...

journal_title：Journal of neurophysiology

authors： Büsselberg D,Platt B,Michael D,Carpenter DO,Haas HL

更新日期：1994-04-01 00:00:00

abstract：:Support-surface movements are commonly used to examine balance control. Subjects typically receive a series of identical or randomly interspersed multidirectional balance perturbations and the atypical "first trial reaction" (evoked by the first perturbation) is often excluded from further analysis. However, this proc...

journal_title：Journal of neurophysiology

authors： Oude Nijhuis LB,Allum JH,Borm GF,Honegger F,Overeem S,Bloem BR

更新日期：2009-06-01 00:00:00

abstract：:When the brain has determined the position of a moving object, because of anatomical and processing delays the object will have already moved to a new location. Given the statistical regularities present in natural motion, the brain may have acquired compensatory mechanisms to minimize the mismatch between the perceiv...

journal_title：Journal of neurophysiology

authors： Subramaniyan M,Ecker AS,Patel SS,Cotton RJ,Bethge M,Pitkow X,Berens P,Tolias AS

更新日期：2018-11-01 00:00:00

abstract：:Squirrel monkeys were trained using newly developed visual-vestibular mismatch paradigms to test the asymmetrical simultaneous induction of vertical vestibuloocular reflex (VOR) gain changes in opposite directions (high and low) either in the upward and downward directions or in response to high- and low-frequency sti...

journal_title：Journal of neurophysiology

authors： Hirata Y,Lockard JM,Highstein SM

更新日期：2002-12-01 00:00:00

abstract：:The activity of jaw muscle receptors was studied by recording neurons in the mesencephalic nucleus of the trigeminal nerve in monkeys trained to control the position and movement of their mandible. Jaw position was measured by a weighted lever resting on the mandibular incisors. The force required to maintain the posi...

journal_title：Journal of neurophysiology

authors： Larson CR,Finocchio DV,Smith A,Luschei ES

更新日期：1983-07-01 00:00:00

abstract：:Augmenting (or incremental) responses are progressively growing potentials elicited by 5- to 15-Hz stimulation within the thalamus, cerebral cortex, or by setting into action reciprocal thalamocortical neuronal loops. These responses are associated with short-term plasticity processes in thalamic and cortical neurons....

journal_title：Journal of neurophysiology

authors： Timofeev I,Steriade M

更新日期：1998-05-01 00:00:00

abstract：:This study determined the effect of mixed (slip- and trip-like stance perturbation) training on reactive responses in people with chronic stroke (PwCS) and examined modulation of their reactive responses on higher intensity perturbations posttraining (scaling). Twelve PwCS were exposed to consecutive blocks of treadmi...

journal_title：Journal of neurophysiology

authors： Dusane S,Bhatt T

更新日期：2020-07-01 00:00:00

abstract：:Mechanisms of direction selectivity and speed selectivity were studied in single neurons of the middle temporal visual area (MT) of behaving macaque monkeys. Visual stimuli were presented in both smooth and stroboscopic motion within a neuron's receptive field as the monkey fixated a stationary point of light. Directi...

journal_title：Journal of neurophysiology

authors： Mikami A,Newsome WT,Wurtz RH

更新日期：1986-06-01 00:00:00

abstract：:We charted postnatal changes in the intrinsic electrophysiological properties and synaptic responses of rat intrinsic cardiac ganglion (ICG) neurons. We developed a whole-mount ganglion preparation of the excised right atrial ganglion plexus. Using intracellular recordings and nerve stimulation we tested the hypothesi...

journal_title：Journal of neurophysiology

authors： Rimmer K,Harper AA

更新日期：2006-06-01 00:00:00

abstract：:Frequency facilitation is a process whereby neurosecretion increases as a function of stimulation frequency during repetitive synaptic activity. To examine the physiological basis underlying facilitation, we have estimated the frequency dependence of the synaptic parameters n (number of units capable of responding to ...

journal_title：Journal of neurophysiology

authors： Worden MK,Bykhovskaia M,Hackett JT

更新日期：1997-07-01 00:00:00

abstract：:cAMP-dependent protein kinase (PKA) and protein kinase C (PKC) are two major modulators of synaptic transmission in the CNS but little is known about how they affect synaptic transmission in the human CNS. In this study, we used forskolin, a PKA activator, and phorbol ester, a PKC activator, to examine the effects of ...

journal_title：Journal of neurophysiology

authors： Chen HX,Roper SN

更新日期：2003-05-01 00:00:00

abstract：:1. The purpose of this study was to use the techniques of spike- and stimulus-triggered averaging (SpTA and StTA, respectively) to examine the output organization of individual rubromotoneuronal (RM) cells in relation to clusters of neighboring cells. SpTA of electromyographic (EMG) activity in awake monkeys reveals t...

journal_title：Journal of neurophysiology

authors： Cheney PD,Mewes K,Widener G

更新日期：1991-12-01 00:00:00

abstract：:Monoamines are strong modulators and/or activators of spinal locomotor networks. Thus monoaminergic fibers likely contact neurons involved in generating locomotion. The aim of the present study was to investigate the serotonergic innervation of locomotor-activated neurons within the thoraco-lumbar spinal cord followin...

journal_title：Journal of neurophysiology

authors： Noga BR,Johnson DM,Riesgo MI,Pinzon A

更新日期：2009-09-01 00:00:00

abstract：:1. We define an extrinsic frame of reference to represent the location of a point in extrapersonal space relative to a human subject's shoulder, and we define an intrinsic frame of reference to represent the orientation of the arm and forearm. 2. We examined the relations between coordinates in the extrinsic and intri...

journal_title：Journal of neurophysiology

authors： Soechting JF,Flanders M

更新日期：1989-08-01 00:00:00

abstract：:A question to be addressed in the present study is how different the eyes-closed (EC) and eyes-open (EO) resting states are across frequency bands in terms of efficiency and centrality of the brain functional network. We investigated both the global and nodal efficiency and betweenness centrality in the EC and EO rest...

journal_title：Journal of neurophysiology

authors： Jin SH,Jeong W,Lee DS,Jeon BS,Chung CK

更新日期：2014-04-01 00:00:00

abstract：:Our understanding of how we learn and retain motor behaviors is still limited. For instance, there is conflicting evidence as to whether the memory of a learned visuomotor perturbation consolidates; i.e., the motor memory becomes resistant to interference from learning a competing perturbation over time. Here, we soug...

journal_title：Journal of neurophysiology

authors： Maeda RS,McGee SE,Marigold DS

更新日期：2017-01-01 00:00:00

abstract：:We attempted to analyze the nature of premovement activity of neurons in medial motor areas [supplementary motor area (SMA) and pre-SMA] from a perspective of coding multiple movements. Monkeys were trained to perform a series of two movements with an intervening delay: supination or pronation with either forearm. Mov...

journal_title：Journal of neurophysiology

authors： Nakajima T,Hosaka R,Mushiake H,Tanji J

更新日期：2009-04-01 00:00:00