Transient neurophysiological changes in CA3 neurons and dentate granule cells after severe forebrain ischemia in vivo.

abstract：:It is well recognized that the brain uses sensory information to accurately produce motor commands. Indeed, most research into the relationship between sensory and motor systems has focused on how sensory information modulates motor function. In contrast, recent studies have begun to investigate the reverse: how senso...

journal_title：Journal of neurophysiology

authors： Wong JD,Wilson ET,Gribble PL

更新日期：2011-05-01 00:00:00

abstract：:The locus coeruleus (LC) noradrenergic (NE) neuromodulatory system is critically involved in regulation of neural excitability via its diffuse ascending projections. Tonic NE release in the forebrain is essential for maintenance of vigilant states and increases the signal-to-noise ratio of cortical sensory responses. ...

journal_title：Journal of neurophysiology

authors： Neves RM,van Keulen S,Yang M,Logothetis NK,Eschenko O

更新日期：2018-03-01 00:00:00

abstract：:In the absence of any obvious input, sensory neurons and interneurons can display resting or spontaneous activity. This is often regarded as noise and removed through trial averaging, although it may reflect history-dependent modulation of tuning or fidelity and, thus, be of functional relevance to downstream interneu...

journal_title：Journal of neurophysiology

authors： Lepreux G,Haupt SS,Dürr V

更新日期：2019-12-01 00:00:00

abstract：:During anticipated postural perturbations induced by limb movement, the central nervous system generates anticipatory postural adjustments (APAs) in the trunk and hip musculature to minimize disturbances to equilibrium. Age-related changes in functional organization of the nervous system may contribute to changes in A...

journal_title：Journal of neurophysiology

authors： Smith JA,Fisher BE

更新日期：2018-12-01 00:00:00

abstract：:Silent synapses are excitatory synapses endowed exclusively with N-methyl-D-aspartate (NMDA) responses that have been proposed to acquire alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) responses during development and after long-term potentiation (LTP). These synapses are functionally silent because o...

journal_title：Journal of neurophysiology

authors： Losi G,Prybylowski K,Fu Z,Luo JH,Vicini S

更新日期：2002-03-01 00:00:00

abstract：:An imbalance between the strengths of excitatory and inhibitory synaptic inputs has been proposed as the cellular basis of autism and related neurodevelopmental disorders. Previous studies examining spontaneous levels of excitatory and inhibitory neurotransmission in the forebrain regions of methyl-CpG-binding protein...

journal_title：Journal of neurophysiology

authors： Nelson ED,Bal M,Kavalali ET,Monteggia LM

更新日期：2011-07-01 00:00:00

abstract：:Breathing frequency increases at the onset of movement in a wide rage of mammals including adult humans. Moreover, the magnitude of increase in the rate of breathing appears related to the rate of the rhythmic movement. We determined whether human infants show the same type of response when supported to step on a trea...

journal_title：Journal of neurophysiology

authors： Noah JA,Boliek C,Lam T,Yang JF

更新日期：2008-03-01 00:00:00

abstract：:Arrays of closely spaced quartz-insulated, platinum-tungsten microelectrodes are widely used to obtain acute recordings from chronically prepared subjects. These electrodes have excellent recording characteristics and can be fabricated to a wide variety of tip specifications. Typically, in such experiments, electrodes...

journal_title：Journal of neurophysiology

authors： Swadlow HA,Bereshpolova Y,Bezdudnaya T,Cano M,Stoelzel CR

更新日期：2005-05-01 00:00:00

abstract：:Dual whole-cell patch clamp recordings from the soma and dendrites of CA1 pyramidal neurons located in hippocampal slices of adult rats were used to examine the potential mechanisms of phase precession. To mimic phasic synaptic input, 5-Hz sine wave current injections were simultaneously delivered both to the soma and...

journal_title：Journal of neurophysiology

authors： Magee JC

更新日期：2001-07-01 00:00:00

abstract：:1. The stiffness during the initial portion of a ramp stretch was measured in cat peroneus longus muscle at rest and during maximal tetanic contractions produced by increasing numbers of motor units of the same type [slow (S), fast fatigue resistant (FR), or fast fatigable (FF)]. 2. This initial ramp stiffness was def...

journal_title：Journal of neurophysiology

authors： Petit J,Filippi GM,Gioux M,Hunt CC,Laporte Y

更新日期：1990-12-01 00:00:00

abstract：:1. Effects of hypothalamic stimulation on activity of dorsomedial medulla neurons that responded to subdiaphragmatic vagal stimulation were investigated in urethan-anesthetized rats. 2. Extracellular recordings were made from 231 neurons in the nucleus of the tractus solitarius (NTS) that fired repetitively in respons...

journal_title：Journal of neurophysiology

authors： Nishimura H,Oomura Y

更新日期：1987-10-01 00:00:00

abstract：:1. Neuronal mechanisms for decoding sound azimuth and angular movement were studied by recordings of several single units in parallel in the core areas of the auditory cortex of the macaque monkey. The activity of 180 units was recorded during the presentation of moving and static sound stimuli. Both the activity of s...

journal_title：Journal of neurophysiology

authors： Ahissar M,Ahissar E,Bergman H,Vaadia E

更新日期：1992-01-01 00:00:00

abstract：:1. Rat dorsal root ganglion (DRG) cell bodies were screened according to action potential (AP) duration, capsaicin sensitivity, expression of IH, IA, and N-, L-, and T-type Ca2+ channel currents. AP duration was measured at half of total amplitude at a membrane potential of -60 mV. Sensitivity to capsaicin was defined...

journal_title：Journal of neurophysiology

authors： Cardenas CG,Del Mar LP,Scroggs RS

更新日期：1995-11-01 00:00:00

abstract：:1. During alertness, lemniscal thalamocortical neurons in the ventral medial geniculate body (MGBv) encode sound signals by firing action potentials in a tonic mode. When they are in a burst firing mode, characteristic of thalamic neurons during some sleep states, the same stimuli may have an alerting function, leadin...

journal_title：Journal of neurophysiology

authors： Tennigkeit F,Schwarz DW,Puil E

更新日期：1996-12-01 00:00:00

abstract：:CA1 place cells become more anticipatory with experience, an effect thought to be caused by NMDA receptor-dependent plasticity in the CA3-CA1 network. Theta (~5-12 Hz), slow gamma (~25-50 Hz), and fast gamma (~50-100 Hz) rhythms are thought to route spatial information in the hippocampal formation and to coordinate pl...

journal_title：Journal of neurophysiology

authors： Gereke BJ,Mably AJ,Colgin LL

更新日期：2018-02-01 00:00:00

abstract：:Across the rostrocaudal (RC) axis of the Xenopus tadpole optic tectum exists a developmental gradient. This gradient has served as a useful model to study many aspects of synapse and dendrite maturation. To compliment these studies, we characterized how the intrinsic excitability, the ease in which a neuron can fire a...

journal_title：Journal of neurophysiology

authors： Hamodi AS,Pratt KG

更新日期：2014-10-01 00:00:00

abstract：:1. Firing of cerebral neuron, C-PR, produced complex bilateral movements of various regions of the body of the marine mollusc Aplysia californica. The movements were similar to those seen when the animal assumes the head-up feeding posture during food-induced arousal. Muscles of the neck largely contracted in transver...

journal_title：Journal of neurophysiology

authors： Nagahama T,Weiss KR,Kupfermann I

更新日期：1993-09-01 00:00:00

abstract：:Previous studies have shown that regional slow-wave activity (SWA) during non-rapid eye movement (NREM) sleep is modulated by prior experience and learning. Although this effect has been convincingly demonstrated for the sensorimotor domain, attempts to extend these findings to the visual system have provided mixed re...

journal_title：Journal of neurophysiology

authors： Bernardi G,Betta M,Cataldi J,Leo A,Haba-Rubio J,Heinzer R,Cirelli C,Tononi G,Pietrini P,Ricciardi E,Siclari F

更新日期：2019-06-01 00:00:00

abstract：:Despite the importance of the thumb to hand function, little is known about the origins of thumb impairment poststroke. Accordingly, the primary purpose of this study was to assess whether thumb flexors have heightened stretch reflexes (SRs) following stroke-induced hand impairment. The secondary purpose was to compar...

journal_title：Journal of neurophysiology

authors： Towles JD,Kamper DG,Rymer WZ

更新日期：2010-10-01 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：:Hilar mossy cells represent a unique population of local circuit neurons in the hippocampus and dentate gyrus. Here we use electrophysiological techniques in acute preparations of hippocampal slices to demonstrate that depolarization of a single hilar mossy cell can produce robust inhibition of local GABAergic afferen...

journal_title：Journal of neurophysiology

authors： Hofmann ME,Nahir B,Frazier CJ

更新日期：2006-11-01 00:00:00

abstract：:1. A task was used by Posner (1980) to measure shifts of attention that occurred covertly, in the absence of an eye movement or other orienting response. This paradigm was used here to assess the nature of covert attentional orienting in monkeys to develop an animal model for neurophysiological studies. Shifts of atte...

journal_title：Journal of neurophysiology

authors： Bowman EM,Brown VJ,Kertzman C,Schwarz U,Robinson DL

更新日期：1993-07-01 00:00:00

abstract：:6-((4,4-difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene-3-propionyl)amino)hexanoic acid ryanodine (BODIPY-ryanodine) binding and Ca(2+) imaging were used to study the properties of ryanodine receptors (RyRs) and cytoplasmic Ca(2+) (Ca) changes in neurons cultured from the embryonic rat hippocampus during the earli...

journal_title：Journal of neurophysiology

authors： Sukhareva M,Smith SV,Maric D,Barker JL

更新日期：2002-09-01 00:00:00

abstract：:Glutamate is the primary excitatory transmitter in axons innervating the hypothalamic suprachiasmatic nucleus (SCN) and is responsible for light-induced phase shifts of circadian rhythms generated by the SCN. By using self-innervating single neuron cultures and patch-clamp electrophysiology, we studied metabotropic gl...

journal_title：Journal of neurophysiology

authors： Chen G,van den Pol AN

更新日期：1998-10-01 00:00:00

abstract：:The exercise pressor reflex, a crucial component of the cardiovascular response under physiological and pathophysiological states, is activated via metabolic and mechanical mediators that originate from contracting muscles and stimulate group III and IV afferents. We reported previously that stimulation of mu opioid r...

journal_title：Journal of neurophysiology

authors： Hassan B,Kim JS,Farrag M,Kaufman MP,Ruiz-Velasco V

更新日期：2014-12-15 00:00:00

abstract：:The primate superior colliculus (SC) is causally involved in microsaccade generation. Moreover, visually responsive SC neurons across this structure's topographic map, even at peripheral eccentricities much larger than the tiny microsaccade amplitudes, exhibit significant modulations of evoked response sensitivity whe...

journal_title：Journal of neurophysiology

authors： Khademi F,Chen CY,Hafed ZM

更新日期：2020-06-01 00:00:00

abstract：:There is evidence that postural instability associated with Parkinson's disease (PD) is not adequately improved by levodopa, implying involvement of nondopaminergic pathways. However, the mechanisms contributing to postural instability have yet to be fully identified and tested for their levodopa responsiveness. In th...

journal_title：Journal of neurophysiology

authors： Di Giulio I,St George RJ,Kalliolia E,Peters AL,Limousin P,Day BL

更新日期：2016-08-01 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：:In the rodent whisker system, a key model for neural processing and behavioral choices during active sensing, whisker motion is increasingly recognized as only part of a broader motor repertoire employed by rodents during active touch. In particular, recent studies suggest whisker and head motions are tightly coordina...

journal_title：Journal of neurophysiology

authors： Schroeder JB,Ritt JT

更新日期：2016-04-01 00:00:00

abstract：:Understanding neural responses with natural stimuli has increasingly become an essential part of characterizing neural coding. Neural responses are commonly characterized by a linear-nonlinear (LN) model, in which the output of a linear filter applied to the stimulus is transformed by a static nonlinearity to determin...

journal_title：Journal of neurophysiology

authors： Sharpee TO,Miller KD,Stryker MP

更新日期：2008-05-01 00:00:00