Local serotonergic modulation of calcium-dependent potassium channels controls intersegmental coordination in the lamprey spinal cord.

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：:We used positron emission tomography to study motor learning by trial and error. Subjects learned sequences of eight finger movements. Tones generated by a computer told the subjects whether any particular move was correct or incorrect. A control condition was used in which the subjects generated moves, but there was ...

journal_title：Journal of neurophysiology

authors： Jueptner M,Frith CD,Brooks DJ,Frackowiak RS,Passingham RE

更新日期：1997-03-01 00:00:00

abstract：:The two-dimensional distribution of population activity in the superior colliculus (SC) during saccadic eye movements in the monkey was estimated using radial basis functions. To make these ensemble activity estimates, cells in the deeper layers of the SC were recorded over much of the rostrocaudal (caudal to 3.8 mm f...

journal_title：Journal of neurophysiology

authors： Anderson RW,Keller EL,Gandhi NJ,Das S

更新日期：1998-08-01 00:00:00

abstract：:Action observation activates brain regions involved in sensory-motor control. Recent research has shown that action observation can also facilitate motor learning; observing a tutor undergoing motor learning results in functional plasticity within the motor system and gains in subsequent motor performance. However, th...

journal_title：Journal of neurophysiology

authors： McGregor HR,Cashaback JGA,Gribble PL

更新日期：2018-12-01 00:00:00

abstract：:Studies on the expression and cellular function of sigma receptors in autonomic neurons were conducted in neonatal rat intracardiac and superior cervical (SCG) ganglia. Individual neurons from SCG and intracardiac ganglia were shown to express transcripts encoding the sigma-1 receptor using single-cell RT-PCR techniqu...

journal_title：Journal of neurophysiology

authors： Zhang H,Cuevas J

更新日期：2002-06-01 00:00:00

abstract：:The role of dorsal root reflexes (DRRs) in acute cutaneous neurogenic inflammation induced by intradermal injection of capsaicin (CAP) was examined in anesthetized rats. Changes in cutaneous blood flow (flare) on the plantar surface of the foot were measured using a laser Doppler flowmeter, and neurogenic edema was ex...

journal_title：Journal of neurophysiology

authors： Lin Q,Wu J,Willis WD

更新日期：1999-11-01 00:00:00

abstract：:Senosory neurons manifest pronounced changes in excitability during maturation, but the factors contributing to this ubiquitous developmental phenomenon are not well understood. To assess the contribution of intrinsic membrane properties to such changes in excitability, in the present study whole cell patch-clamp reco...

journal_title：Journal of neurophysiology

authors： Wang GY,Ratto G,Bisti S,Chalupa LM

更新日期：1997-12-01 00:00:00

abstract：:Histamine is a known secretagogue in adrenal chromaffin cells. Activation of G-protein linked H(1) receptors stimulates phospholipase C, which generates inositol trisphosphate leading to release of intracellular calcium stores and stimulation of calcium influx through store operated and other channels. This calcium le...

journal_title：Journal of neurophysiology

authors： Currie KP,Fox AP

更新日期：2000-03-01 00:00:00

abstract：:The medial superior temporal area of the macaque monkey extrastriate visual cortex can be divided into a dorsal medial (MSTd) and a lateral ventral (MSTl) region. The functions of the two regions may not be identical: MSTd may process optic flow information that results from the movement of the observer, whereas MSTl ...

journal_title：Journal of neurophysiology

authors： Eifuku S,Wurtz RH

更新日期：1998-07-01 00:00:00

abstract：:Single midbrain neurons were examined for effects of ovarian hormone administration on responsiveness to an array of lordosis-controlling types of somatosensory stimuli in anesthetized, ovariectomized Syrian hamsters. Neuronal responses were recorded under four different hormonal treatment conditions: 1) estradiol ben...

journal_title：Journal of neurophysiology

authors： Rose JD,Bieber SL

更新日期：1984-05-01 00:00:00

abstract：:We measured synaptic responses to complex stimulus trains in the calyx of Held and used the data to test how well several vesicle-release models could capture the observed dynamics. We tested stimulation protocols consisting of Poisson-distributed activity with periodically changing mean frequencies, trains with const...

journal_title：Journal of neurophysiology

authors： Hermann J,Grothe B,Klug A

更新日期：2009-01-01 00:00:00

abstract：:Transcranial direct current stimulation (tDCS) can produce a lasting polarity-specific modulation of cortical excitability in the brain, and it is increasingly used in experimental and clinical settings. Recent studies suggest that the after-effects of tDCS are related to molecular mechanisms of activity-dependent syn...

journal_title：Journal of neurophysiology

authors： Ranieri F,Podda MV,Riccardi E,Frisullo G,Dileone M,Profice P,Pilato F,Di Lazzaro V,Grassi C

更新日期：2012-04-01 00:00:00

abstract：:The vestibuloocular reflex (VOR) needs to modulate its gain depending on target distance to prevent retinal slip during head movements. We investigated gain modulation (context compensation) for binocular gaze stabilization in human subjects during voluntary yaw and pitch head rotations. Movements of each eye were rec...

journal_title：Journal of neurophysiology

authors： Medendorp WP,Van Gisbergen JA,Van Pelt S,Gielen CC

更新日期：2000-12-01 00:00:00

abstract：:1. Activation of neurokinin receptors contributes to the excitation of many dorsal horn neurons by cutaneous sensory stimuli, particularly noxious stimuli. In the present study we investigate the role of neurokinin receptors in the activation of primate spinothalamic tract (STT) neurons by cutaneous mechanical stimuli...

journal_title：Journal of neurophysiology

authors： Dougherty PM,Palecek J,Palecková V,Willis WD

更新日期：1994-10-01 00:00:00

abstract：:We investigated adaptation to simple force field scaling to determine whether the same strategy is used as during adaptation to more complex changes in the mechanical environment. Subjects initially trained in a force field, consisting of a rightward lateral force with a parabolic spatial profile (PF). The field stren...

journal_title：Journal of neurophysiology

authors： Hinder MR,Milner TE

更新日期：2007-11-01 00:00:00

abstract：:Mesencephalic trigeminal (M-V) neurons are primary somatosensory neurons with somata located within the CNS, instead of in peripheral sensory ganglia. In amphibians, these unipolar cells are found within the optic tectum and have a single axon that runs along the mandibular branch of the trigeminal nerve. The axon has...

journal_title：Journal of neurophysiology

authors： Pratt KG,Aizenman CD

更新日期：2009-07-01 00:00:00

abstract：:1. The effects of D-O-phosphoserine (DOS) were examined on proximal neurons in the superfused mudpuppy retinal-eyecup preparation by measuring their synaptically evoked whole-cell currents with the use of patch-clamp electrodes. 2. DOS reduced the light-evoked excitatory postsynaptic potentials (EPSPs) of amacrine and...

journal_title：Journal of neurophysiology

authors： Coleman PA,Miller RF

更新日期：1989-08-01 00:00:00

abstract：:Central pattern generator (CPG) motor circuits underlying rhythmic behaviors provide feedback to the projection neuron inputs that drive these circuits. This feedback elicits projection neuron bursting linked to CPG rhythms. The brief periodic interruptions in projection neuron activity in turn influence CPG output, g...

journal_title：Journal of neurophysiology

authors： Blitz DM

更新日期：2017-08-01 00:00:00

abstract：:Using microstimulation to imprint meaningful activity patterns into intrinsically highly interconnected neuronal substrates is hampered by activation of fibers of passage leading to a spatiotemporal "blur" of activity. The focus of the present study was to characterize the shape of this blur in the neocortex to arrive...

journal_title：Journal of neurophysiology

authors： Butovas S,Schwarz C

更新日期：2003-11-01 00:00:00

abstract：:The horizontal cell is a second-order retinal neuron that is depolarized in the dark and responds to light with graded potential changes. In such a nonspiking neuron, not only the voltage-gated ionic conductances but also Ca(2+) regulation mechanisms, e.g., the Na(+)/Ca(2+) exchange and the Ca(2+) pump, are considered...

journal_title：Journal of neurophysiology

authors： Hayashida Y,Yagi T

更新日期：2002-01-01 00:00:00

abstract：:Although metabotropic glutamate receptors (mGluRs) mGluR1 and mGluR5 are often found to have similar functions, there is considerable evidence that the two receptors also serve distinct functions in neurons. In hippocampal area CA1, mGluR5 has been most strongly implicated in long-term synaptic depression (LTD), where...

journal_title：Journal of neurophysiology

authors： Volk LJ,Daly CA,Huber KM

更新日期：2006-04-01 00:00:00

abstract：:Motor behavior often occurs in environments with multiple goal options that can vary during the ongoing action. We explored this situation by requiring subjects to select between different target options during an ongoing reach. During split trials the original target was replaced with a left and a right flanking targ...

journal_title：Journal of neurophysiology

authors： Kurtzer IL,Muraoka T,Singh T,Prasad M,Chauhan R,Adhami E

更新日期：2020-10-01 00:00:00

abstract：:Under constant light-adapted conditions, vision seems to be rather linear. However, the processes underlying the synaptic transmission between cones and second-order neurons (bipolar cells and horizontal cells) are highly nonlinear. In this paper, the gain-characteristics of the transmission from cones to horizontal c...

journal_title：Journal of neurophysiology

authors： Kraaij DA,Spekreijse H,Kamermans M

更新日期：2000-09-01 00:00:00

abstract：:1. The synaptic pathways underlying tectal influence over pinna movements were studied using an acute electrophysiological approach. Under pentobarbital anesthesia, postsynaptic potentials were recorded intracellularly in antidromically identified, cat facial motoneurons following electrical stimulation of the superio...

journal_title：Journal of neurophysiology

authors： Vidal PP,May PJ,Baker R

更新日期：1988-08-01 00:00:00

abstract：:Responses have been recorded from primary endings of muscle spindles in the cat soleus muscle. Changes in spindle responsiveness were measured following a period of conditioning that consisted of a series of rapid stretches or of tetanic ventral root stimulation. In the testing procedure the response of a single spind...

journal_title：Journal of neurophysiology

authors： Gregory JE,Morgan DL,Proske U

更新日期：1986-08-01 00:00:00

abstract：:1. A network of four pairs of interneurons, HN(1)-HN(4), times the heartbeat of the medicinal leech. The following model accounts for the stable phase relationships in the network and the network's response to perturbation, entrainment, and stimulation. 2. There are two centers of oscillation, one the HN(3) pair in th...

journal_title：Journal of neurophysiology

authors： Peterson EL

更新日期：1983-03-01 00:00:00

abstract：:Frequent gait modifications are often required to navigate our world. These can involve long or wide steps or changes in direction. People generally prefer to minimize the motor cost (or effort) of a movement, although with changes in gait this is not always possible. The decision of when and where to shift gaze is cr...

journal_title：Journal of neurophysiology

authors： Domínguez-Zamora FJ,Marigold DS

更新日期：2019-07-01 00:00:00

abstract：:The horizontal angular vestibuloocular reflex (VOR) evoked by high-frequency, high-acceleration rotations was studied in four squirrel monkeys after unilateral labyrinthectomy. Spontaneous nystagmus was measured at the beginning and end of each testing session. During the period that animals were kept in darkness (4 d...

journal_title：Journal of neurophysiology

authors： Lasker DM,Hullar TE,Minor LB

更新日期：2000-05-01 00:00:00

abstract：:To further understand the excitatory effects of motoneurons on spinal network function, we investigated the entrainment of disinhibited rhythms by ventral root (VR) stimulation in the neonatal mouse spinal cord. A brief train of stimuli applied to a VR triggered bursting reliably in 31/32 experiments. The same roots t...

journal_title：Journal of neurophysiology

authors： Bonnot A,Chub N,Pujala A,O'Donovan MJ

更新日期：2009-06-01 00:00:00

abstract：:1. Semi-isolated preparations of the nine-celled cardiac ganglion of the crab, Portunus sanguinolentus, were studied electrophysiologically, using simultaneous recording from extracellular and two or three intracellular electrodes. Nine penetrations of small cells were achieved. 2. Three large (80 x 120 micron) cells ...

journal_title：Journal of neurophysiology

authors： Tazaki K,Cooke IM

更新日期：1979-07-01 00:00:00