Active signaling of leg loading and unloading in the cockroach.

abstract：:With experience, an object can become behaviorally relevant and thereby quickly attract our interest when presented in a visual scene. A likely site of these learning effects is anterior inferior temporal (aIT) cortex, where neurons are thought to participate in the filtering of irrelevant information out of complex v...

journal_title：Journal of neurophysiology

authors： Jagadeesh B,Chelazzi L,Mishkin M,Desimone R

更新日期：2001-07-01 00:00:00

abstract：:Are behaviors that rely on common muscles and motoneurons generated by separate or overlapping groups of pattern-generating neurons? This question was investigated for the three forms of scratching in immobilized, spinal turtles. Individual neurons were recorded extracellularly from the gray matter through most of the...

journal_title：Journal of neurophysiology

authors： Berkowitz A

更新日期：2001-08-01 00:00:00

abstract：:The aim of this study was to examine how cat spinal motoneurons integrate the synaptic currents generated by the concurrent activation of large groups of presynaptic neurons. We obtained intracellular recordings from cat triceps surae motoneurons and measured the effects of repetitive activity in different sets of pre...

journal_title：Journal of neurophysiology

authors： Powers RK,Binder MD

更新日期：2000-01-01 00:00:00

abstract：:Smoothness is a hallmark of healthy movement. Past research indicates that smoothness may be a side product of a control strategy that minimizes error. However, this is not the only reason for smooth movements. Our musculoskeletal system itself contributes to movement smoothness: the mechanical impedance (inertia, dam...

journal_title：Journal of neurophysiology

authors： Salmond LH,Davidson AD,Charles SK

更新日期：2017-03-01 00:00:00

abstract：:1. Evidence for local excitatory synaptic connections in CA1 of the rat hippocampus was obtained by recording excitatory postsynaptic potentials (EPSPs) intracellularly from pyramidal cells during local microapplications of glutamate. 2. Experiments were performed in hippocampal slices cut parallel to (transverse slic...

journal_title：Journal of neurophysiology

authors： Christian EP,Dudek FE

更新日期：1988-01-01 00:00:00

abstract：:Electrical transmission is a dynamically regulated form of communication and key to synchronizing neuronal activity. The bag cell neurons of Aplysia are a group of electrically coupled neuroendocrine cells that initiate ovulation by secreting egg-laying hormone during a prolonged period of synchronous firing called th...

journal_title：Journal of neurophysiology

authors： Dargaei Z,Standage D,Groten CJ,Blohm G,Magoski NS

更新日期：2015-02-01 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：:Previous analysis of the firing of individual rat hippocampal place cells has shown that their firing rate increases when they enter a place field and that their phase of firing relative to the ongoing theta oscillation (7-12 Hz) varies systematically as the rat traverses the place field, a phenomenon termed the theta...

journal_title：Journal of neurophysiology

authors： Jensen O,Lisman JE

更新日期：2000-05-01 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

abstract：:The ovulation hormone-producing caudodorsal cells (CDCs) of the pond snail Lymnaea stagnalis form two clusters of electrotonically coupled cells, each containing a few specialized (ventral) cells that connect the clusters. The hormone is secreted during a pacemaker-driven discharge. The CDCs receive a biphasic choline...

journal_title：Journal of neurophysiology

authors： ter Maat A,Roubos EW,Lodder JC,Buma P

更新日期：1983-06-01 00:00:00

abstract：:A number of studies have indicated an important role for N-methyl-D-aspartate (NMDA) receptors in cell survival versus cell death decisions during neuronal development, trauma, and ischemia. Coupling of neurons by electrical synapses (gap junctions) is high or increases in neuronal networks during all three of these c...

journal_title：Journal of neurophysiology

authors： de Rivero Vaccari JC,Corriveau RA,Belousov AB

更新日期：2007-11-01 00:00:00

abstract：:This second paper of the series deals with another issue regarding sensorimotor representations in the CNS that has received much attention, namely the relative weighting of kinematic and kinetic representations. The question we address here is the contribution of muscle tension afferent information in dorsal spinocer...

journal_title：Journal of neurophysiology

authors： Bosco G,Poppele RE

更新日期：2000-05-01 00:00:00

abstract：:1. Long-term depression (LTD) is an activity-dependent reduction in the strength of synaptic transmission that can persist for hours. It is a neural model for processes underlying learning and memory, such as extinction and forgetting. LTD of excitatory postsynaptic potentials (EPSPs) in cells of the CA1 region of hip...

journal_title：Journal of neurophysiology

authors： Christofi G,Nowicky AV,Bolsover SR,Bindman LJ

更新日期：1993-01-01 00:00:00

abstract：:The small-signal linear characteristics of afferent responses from the isolated semicircular canal were described by the use of white-noise rotational acceleration inputs. The results, based on cross-correlation analysis, showed a striking and systematic variation in linear system impulse response characteristics from...

journal_title：Journal of neurophysiology

authors： O'Leary DP,Dunn RF

更新日期：1976-05-01 00:00:00

abstract：:1. The purpose of this study is to analyze the kinematics of stepping from the point of view of limb control by attempting to dissociate the various neuronal and mechanical factors that shape actual movements observed experimentally. The cat hindlimb, like the primate arm, is a multijointed mechanical system with redu...

journal_title：Journal of neurophysiology

authors： Shen L,Poppele RE

更新日期：1995-12-01 00:00:00

abstract：:Responses to tones, clicks, and noise were recorded from chinchilla auditory-nerve fibers (ANFs). The responses to noise were analyzed by computing the zeroth-, first-, and second-order Wiener kernels (h0, h1, and h2). The h1s correctly predicted the frequency tuning and phases of responses to tones of ANFs with low c...

journal_title：Journal of neurophysiology

authors： Temchin AN,Recio-Spinoso A,van Dijk P,Ruggero MA

更新日期：2005-06-01 00:00:00

abstract：:1. The somatotopic organization of nociceptive-specific (NS) and wide dynamic range (WDR) units in the nucleus ventralis posterolateralis (VPL) of the ventrobasal (VB) complex was studied. Experiments were carried out on adult cats anesthetized with urethane-chloralose. The recording sites of nociceptive units were ma...

journal_title：Journal of neurophysiology

authors： Yokota T,Asato F,Koyama N,Masuda T,Taguchi H

更新日期：1988-11-01 00:00:00

abstract：:Abductor hallucis is the largest muscle in the arch of the human foot and comprises few motor units relative to its physiological cross-sectional area. It has been described as a postural muscle, aiding in the stabilization of the longitudinal arch during stance and gait. The purpose of this study was to describe the ...

journal_title：Journal of neurophysiology

authors： Kelly LA,Racinais S,Cresswell AG

更新日期：2013-08-01 00:00:00

abstract：:The musculoskeletal redundancy of the body provides multiple solutions for performing motor tasks. We have proposed that the nervous system solves this unconstrained problem through the recruitment of motor modules or functional muscle synergies that map motor intention to action. Consistent with this hypothesis, we s...

journal_title：Journal of neurophysiology

authors： Torres-Oviedo G,Ting LH

更新日期：2010-06-01 00:00:00

abstract：:Trimming all whiskers except two on one side of an adult rat's face results in cortical plasticity in which the spared whiskers, D2 and one D-row surround whisker (either D1 or D3), evoked responses containing more spikes than the response evoked by the cut whisker (called whisker pairing plasticity). Previously we ha...

journal_title：Journal of neurophysiology

authors： Sachdev RN,Egli M,Stonecypher M,Wiley RG,Ebner FF

更新日期：2000-10-01 00:00:00

abstract：:In the preceding report, we observed that tail-shock-induced sensitization of tail-elicited siphon withdrawal reflex (TSW) of Aplysia was expressed ipsilaterally but that dishabituation induced by an identical tail shock was expressed bilaterally. Here we examined the mechanisms of this differential lateralization. We...

journal_title：Journal of neurophysiology

authors： Bristol AS,Marinesco S,Carew TJ

更新日期：2004-02-01 00:00:00

abstract：:Circulating glucose levels significantly affect vagal neural activity, which is important in the regulation of pancreatic functions. Little is known about the mechanisms involved. This study investigates the neural pathways responsible for hypoglycemia-induced vagal efferent signaling to the pancreas and identifies th...

journal_title：Journal of neurophysiology

authors： Wu X,Gao J,Yan J,Owyang C,Li Y

更新日期：2004-04-01 00:00:00

abstract：:Gonadotropin-releasing hormone (GnRH) controls mammalian reproduction via the hypothalamic-pituitary-gonadal (hpg) axis, acting on gonadotrope cells in the pituitary gland that express the GnRH receptor (GnRHR). Cells expressing the GnRHR have also been identified in the brain. However, the mechanism by which GnRH act...

journal_title：Journal of neurophysiology

authors： Schauer C,Tong T,Petitjean H,Blum T,Peron S,Mai O,Schmitz F,Boehm U,Leinders-Zufall T

更新日期：2015-08-01 00:00:00

abstract：:Pathologic reorganization of spinal networks and activity-dependent plasticity are common neuronal adaptations after spinal cord injury (SCI) in humans. In this work, we examined changes of reciprocal Ia and nonreciprocal Ib inhibition after locomotor training in 16 people with chronic SCI. The soleus H-reflex depress...

journal_title：Journal of neurophysiology

authors： Knikou M,Smith AC,Mummidisetty CK

更新日期：2015-04-01 00:00:00

abstract：:Primates can generate accurate, smooth eye-movement responses to moving target objects of arbitrary shape and size, even in the presence of complex backgrounds and/or the extraneous motion of non-target objects. Most previous studies of pursuit have simply used a spot moving over a featureless background as the target...

journal_title：Journal of neurophysiology

authors： Masson GS,Stone LS

更新日期：2002-11-01 00:00:00

abstract：:This study investigated how the ability to extend the fingers and thumb recovers early after stroke and how the ability to extend all of the digits affects grasping performance. We studied 24 hemiparetic patients at 3 and 13 wk post stroke. At each visit, we tested the subjects' ability to actively extend all five dig...

journal_title：Journal of neurophysiology

authors： Lang CE,DeJong SL,Beebe JA

更新日期：2009-07-01 00:00:00

abstract：:Generalization is a fundamental aspect of behavior, allowing for the transfer of knowledge from one context to another. The details of this transfer are thought to reveal how the brain represents what it learns. Generalization has been a central focus in studies of sensorimotor adaptation, and its pattern has been wel...

journal_title：Journal of neurophysiology

authors： McDougle SD,Bond KM,Taylor JA

更新日期：2017-07-01 00:00:00

abstract：:During seizure-like events (SLEs), intracellular Ca2+ concentration ([Ca2+]i) increases causing depolarization of the mitochondrial membrane and subsequent intramitochondrial accumulation of Ca2+. Mitochondrial depolarization results in an interruption of oxidative phosphorylation and increase in reactive oxygen speci...

journal_title：Journal of neurophysiology

authors： Schuchmann S,Buchheim K,Meierkord H,Heinemann U

更新日期：1999-01-01 00:00:00

abstract：:Rats typically employ 4- to 12-Hz "whisking" movements of their vibrissae during tactile exploration. The intentional sampling of signals in this frequency range suggests that neural processing of tactile information may be differentially engaged in this bandwidth. We examined action potential responses in rat primary...

journal_title：Journal of neurophysiology

authors： Garabedian CE,Jones SR,Merzenich MM,Dale A,Moore CI

更新日期：2003-09-01 00:00:00

abstract：:Synchronization between the firing times of simultaneously active motor units (MUs) is generally assumed to increase during fatiguing contractions. To date, however, estimates of MU synchronization have relied on indirect measures, derived from surface electromyographic (EMG) interference signals. This study used intr...

journal_title：Journal of neurophysiology

authors： McManus L,Hu X,Rymer WZ,Suresh NL,Lowery MM

更新日期：2016-06-01 00:00:00