Synaptic dynamics on different time scales in a parallel fiber feedback pathway of the weakly electric fish.

abstract：:Vision in natural situations is different from the paradigms generally used to study vision in the laboratory. In natural vision, stimuli usually appear in a receptive field as the result of saccadic eye movements rather than suddenly flashing into view. The stimuli themselves are rich with meaningful and recognizable...

journal_title：Journal of neurophysiology

authors： Ruiz O,Paradiso MA

更新日期：2012-07-01 00:00:00

abstract：:We examined the activation kinetics of the delayed rectifier K+ current of bullfrog sympathetic neurons, primarily using whole cell recording. On depolarization, currents activated with a sigmoid delay but did not show a Cole-Moore shift. The time course of activation differed systematically from an exponential raised...

journal_title：Journal of neurophysiology

authors： Klemic KG,Durand DM,Jones SW

更新日期：1998-05-01 00:00:00

abstract：:The rostral ventromedial medulla (RVM) modulates nociception through changes in the activity of two classes of neuron, ON- and OFF-cells. The activity of these neurons is regulated, in part, by input from the periaqueductal gray (PAG). The objective of this study was to determine whether PAG-mediated antinociception i...

journal_title：Journal of neurophysiology

authors： Tortorici V,Morgan MM

更新日期：2002-10-01 00:00:00

abstract：:1. We probed the gain and phase of the vestibuloocular reflex (VOR) during the execution of voluntary gaze saccades, with continuous oscillation or acceleration pulses, applied through a torque helmet. 2. Small-amplitude (< 1 degree), high-frequency (10-14 Hz) head oscillations in the horizontal or vertical plane were...

journal_title：Journal of neurophysiology

authors： Tabak S,Smeets JB,Collewijn H

更新日期：1996-11-01 00:00:00

abstract：:The respiratory network of the preBötzinger complex (preBötC), which controls inspiratory behavior, can in normal conditions simultaneously produce two types of inspiration-related rhythmic activities: the eupneic rhythm composed of monophasic, low-amplitude, and relatively high-frequency bursts, interspersed with sig...

journal_title：Journal of neurophysiology

authors： Thoby-Brisson M

更新日期：2018-09-01 00:00:00

abstract：:The relative motion between the surface of an object and our fingers produces patterns of skin deformation such as stretch, indentation, and vibrations. In this study, we hypothesized that motion-induced vibrations are combined with other tactile cues for the discrimination of tactile speed. Specifically, we hypothesi...

journal_title：Journal of neurophysiology

authors： Dallmann CJ,Ernst MO,Moscatelli A

更新日期：2015-12-01 00:00:00

abstract：:1. Responses of single units and multiunit clusters were recorded in the ferret primary auditory cortex (AI) with the use of broadband complex dynamic spectra. Previous work has demonstrated that simpler spectra consisting of single moving ripples (i.e., sinusoidally modulated spectral profiles that travel at a consta...

journal_title：Journal of neurophysiology

authors： Kowalski N,Depireux DA,Shamma SA

更新日期：1996-11-01 00:00:00

abstract：:The role of the nitric oxide (NO)-cGMP signaling cascade in modulation of peripheral nociception is controversial. Although behavioral studies have suggested both pro- and anti-nociceptive effects, little is known about the direct action of this signaling cascade on primary afferent nociceptive neurons that mediate th...

journal_title：Journal of neurophysiology

authors： Levy D,Strassman AM

更新日期：2004-08-01 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：:Trimming all but two whiskers in adult rats produces a predictable change in cortical cell-evoked responses characterized by increased responsiveness to the two intact whiskers and decreased responsiveness to the trimmed whiskers. This type of synaptic plasticity in rat somatic sensory cortex, called "whisker pairing ...

journal_title：Journal of neurophysiology

authors： Sachdev RN,Lu SM,Wiley RG,Ebner FF

更新日期：1998-06-01 00:00:00

abstract：:Previous studies of spiral ganglion neuron electrophysiology have shown that specific parameters differ according to cochlear location, with apical neurons being distinctly different from basal neurons. To align these features more precisely along the tonotopic axis of the cochlea, we developed a novel spiral ganglion...

journal_title：Journal of neurophysiology

authors： Liu Q,Davis RL

更新日期：2007-10-01 00:00:00

abstract：:Slowness of voluntary movements in patients with multiple sclerosis (MS) may be due to various factors, including attentional and cognitive deficits, delays in motor conduction time, and impairment of specific central nervous system circuits. In 13 healthy volunteers and 20 mildly disabled, relapsing-remitting MS pati...

journal_title：Journal of neurophysiology

authors： Cabib C,Llufriu S,Casanova-Molla J,Saiz A,Valls-Solé J

更新日期：2015-03-01 00:00:00

abstract：:1. The caudal photoreceptor (CPR) interneurons in the sixth abdominal ganglion of the crayfish are complex, multi-modal interneurons. These cells respond directly to light with tonic spike discharges, and they integrate synaptic input from an array of fili-form mechanoreceptors on the tailfan. They also provide input ...

journal_title：Journal of neurophysiology

authors： Pei X,Wilkens LA,Moss F

更新日期：1996-11-01 00:00:00

abstract：:We studied the responses of neurons in the inferior colliculus (IC) of cats to stimuli known to evoke the precedence effect (PE). This paper focuses on stimulus conditions that probe the neural mechanisms underlying the PE but that are not usually encountered in a natural situation. Experiments were conducted under bo...

journal_title：Journal of neurophysiology

authors： Litovsky RY,Yin TC

更新日期：1998-09-01 00:00:00

abstract：:1. Human flexor reflex (HFR) responses were elicited during ergometer cycling in neurologically intact humans with the objective of understanding the influence of lower limb muscle activity on phase-dependent reflex modulation during movement. The experimental setup permitted control over background muscle activity an...

journal_title：Journal of neurophysiology

authors： Brown DA,Kukulka CG

更新日期：1993-04-01 00:00:00

abstract：:To study the possible role of the cerebellum in the vestibular-ocular reflex, extracellular responses of cerebellar nuclear neurons were recorded in awake monkeys during natural vestibular stimulation; 115 neurons in the fastigial nucleus responded to horizontal sinusoidal accelerations applied to the head by means of...

journal_title：Journal of neurophysiology

authors： Gardner EP,Fuchs AF

更新日期：1975-05-01 00:00:00

abstract：:Neural implants with large numbers of electrodes have become an important tool for examining brain functions. However, these devices typically displace a large intracranial volume compared with the neurons they record. This large size limits the density of implants, provokes tissue reactions that degrade chronic perfo...

journal_title：Journal of neurophysiology

authors： Egert D,Pettibone JR,Lemke S,Patel PR,Caldwell CM,Cai D,Ganguly K,Chestek CA,Berke JD

更新日期：2020-12-01 00:00:00

abstract：:A large body of data suggests that the pontine respiratory group (PRG) is involved in respiratory phase-switching and the reconfiguration of the brain stem respiratory network. However, connectivity between the PRG and ventral respiratory column (VRC) in computational models has been largely ad hoc. We developed a net...

journal_title：Journal of neurophysiology

authors： Rybak IA,O'Connor R,Ross A,Shevtsova NA,Nuding SC,Segers LS,Shannon R,Dick TE,Dunin-Barkowski WL,Orem JM,Solomon IC,Morris KF,Lindsey BG

更新日期：2008-10-01 00:00:00

abstract：:1. The dorsal horn (DH) of chickens exhibits a novel pattern of cytoarchitectonic lamination among vertebrates, whereby lamina III lies medial, rather than ventral, to lamina II. Indeed, cutaneous nerves labeled with horseradish peroxidase (HRP) form two separate projections across the mediolateral axis of the superfi...

journal_title：Journal of neurophysiology

authors： Woodbury CJ

更新日期：1992-02-01 00:00:00

abstract：:In recent years a small number of studies have applied functional imaging techniques to investigate visual responses in the human superior colliculus (SC), but few have investigated its oculomotor functions. Here, in two experiments, we examined activity associated with endogenous saccade preparation. We used 3-T fMRI...

journal_title：Journal of neurophysiology

authors： Furlan M,Smith AT,Walker R

更新日期：2015-08-01 00:00:00

abstract：:The nucleus gracilis (NG) receives an abundance of visceral input from various abdominal organs and is proposed to play an important role in visceral pain processing. The purpose of this study was to investigate the necessity of the NG for colorectal input into the ventral posterolateral (VPL) nucleus of the thalamus....

journal_title：Journal of neurophysiology

authors： Al-Chaer ED,Westlund KN,Willis WD

更新日期：1997-07-01 00:00:00

abstract：:Human functional magnetic resonance imaging (fMRI) studies, as well as lesion, drug, and single-cell recording studies in animals, suggest that the striatum plays a key role in associating sensory events with rewarding actions, both by facilitating reward processing and prediction (i.e., reinforcement learning) and by...

journal_title：Journal of neurophysiology

authors： Peterson EJ,Seger CA

更新日期：2013-10-01 00:00:00

abstract：:Hypercapnia-induced arousal from sleep is an important protective mechanism pertinent to a number of diseases. Most notably among these are the sudden infant death syndrome, obstructive sleep apnea and sudden unexpected death in epilepsy. Serotonin (5-HT) plays a significant role in hypercapnia-induced arousal. The me...

journal_title：Journal of neurophysiology

authors： Buchanan GF,Smith HR,MacAskill A,Richerson GB

更新日期：2015-07-01 00:00:00

abstract：:Intense itch and urge to scratch are the major symptoms of many chronic skin ailments, which are increasingly common. Vicious itch-scratch cycles are readily established and may diminish quality of life for those afflicted. We investigated peripheral and central processing of two types of itch sensation elicited by sk...

journal_title：Journal of neurophysiology

authors： Leknes SG,Bantick S,Willis CM,Wilkinson JD,Wise RG,Tracey I

更新日期：2007-01-01 00:00:00

abstract：:Neurons in monkey orbitofrontal cortex (OF) are known to respond to reward-predicting cues with a strength that depends on the value of the predicted reward as determined 1) by intrinsic attributes including size and quality and 2) by extrinsic factors including the monkey's state of satiation and awareness of what ot...

journal_title：Journal of neurophysiology

authors： Roesch MR,Olson CR

更新日期：2005-10-01 00:00:00

abstract：:Regional blood oxygenation in the cerebellum and posterior cerebral cortices was monitored with functional magnetic resonance imaging (fMRI) at four Tesla while 16 normal subjects performed three tasks with identical visual stimulation: fixation; attention focused upon either stimulus shape or color and sustained duri...

journal_title：Journal of neurophysiology

authors： Le TH,Pardo JV,Hu X

更新日期：1998-03-01 00:00:00

abstract：:1. Whole-cell patch clamp techniques were used to record transient outward potassium currents in embryonic rat neocortical neurons maintained in culture. The effect of lidocaine and its quaternary derivative QX222 on this transient outward current (TOC) was examined. 2. Extracellular application of lidocaine produced ...

journal_title：Journal of neurophysiology

authors： Andreasen M,Hablitz JJ

更新日期：1993-06-01 00:00:00

abstract：:We elicited repetitive discharge in hypoglossal motoneurons recorded in slices of rat brain stem using a combination of a suprathreshold injected current step with superimposed noise to mimic the synaptic drive likely to occur during physiological activation. The effects of repetitive en mass stimulation of afferent n...

journal_title：Journal of neurophysiology

authors： Türker KS,Powers RK

更新日期：1999-08-01 00:00:00

abstract：:Coupled oscillatory activity recorded between sensorimotor regions of the basal ganglia-thalamocortical loop is thought to reflect information transfer relevant to movement. A neuronal firing-rate model of basal ganglia-thalamocortical circuitry, however, has dominated thinking about basal ganglia function for the pas...

journal_title：Journal of neurophysiology

authors： Lipski WJ,Wozny TA,Alhourani A,Kondylis ED,Turner RS,Crammond DJ,Richardson RM

更新日期：2017-09-01 00:00:00

abstract：:Visual tracking of moving objects requires prediction to compensate for visual delays and minimize mismatches between eye and target position and velocity. In everyday life, objects often disappear behind an occluder, and prediction is required to align eye and target at reappearance. Earlier studies investigating eye...

journal_title：Journal of neurophysiology

authors： Orban de Xivry JJ,Bennett SJ,Lefèvre P,Barnes GR

更新日期：2006-01-01 00:00:00