Generation and coordination of heartbeat timing oscillation in the medicinal leech. II. Intersegmental coordination.

abstract：:Substance P (SP) hyperpolarizes approximately 80% of ferret vagal sensory neurons (nodose ganglion neurons) via NK-1 receptor-mediated activation of a potassium current (IK). A depolarizing current activated by membrane hyperpolarization could minimize the SP-induced hyperpolarization. Such a current exists in 65% of ...

journal_title：Journal of neurophysiology

authors： Jafri MS,Weinreich D

更新日期：1998-02-01 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：:Muscles paralyzed by chronic (>1 yr) spinal cord injury fatigue readily. Our aim was to evaluate whether the fatigability of paralyzed thenar muscles (n = 10) could be reduced by the repeated delivery of variable versus constant frequency pulse trains. Fatigue was induced in four ways. Intermittent supramaximal median...

journal_title：Journal of neurophysiology

authors： Thomas CK,Griffin L,Godfrey S,Ribot-Ciscar E,Butler JE

更新日期：2003-04-01 00:00:00

abstract：:Leopard frog saccular hair cells exhibit an electrical resonance in response to a depolarizing stimulus that has been proposed to contribute to the tuning properties of the frog sacculus by acting as an electrical band-pass filter. With the whole cell patch-clamp technique, we have investigated the effect of temperatu...

journal_title：Journal of neurophysiology

authors： Smotherman MS,Narins PM

更新日期：1998-01-01 00:00:00

abstract：:In the auditory system of the big brown bat (Eptesicus fuscus), paired conditioned tonal (CS) and unconditioned leg stimuli (US) for auditory fear conditioning elicit tone-specific plasticity represented by best-frequency (BF) shifts that are augmented by acetylcholine, whereas unpaired CS and US for pseudoconditionin...

journal_title：Journal of neurophysiology

authors： Ji W,Suga N

更新日期：2013-02-01 00:00:00

abstract：:A series of studies were carried out to investigate the role of the cerebellar flocculus and ventral paraflocculus in the ability to voluntarily cancel the vestibuloocular reflex (VOR). Squirrel monkeys were trained to pursue moving visual targets and to fixate a head stationary or earth stationary target during passi...

journal_title：Journal of neurophysiology

authors： Belton T,McCrea RA

更新日期：2000-09-01 00:00:00

abstract：:Neurons display a variety of complex dendritic morphologies even within the same class. We examined the relationship between dendritic arborization and the coupling between somatic and dendritic action potential (AP) initiation sites in layer 5 (L5) neocortical pyramidal neurons. Coupling was defined as the relative r...

journal_title：Journal of neurophysiology

authors： Schaefer AT,Larkum ME,Sakmann B,Roth A

更新日期：2003-06-01 00:00:00

abstract：:The macaque middle temporal area (MT) is exquisitely sensitive to visual motion and there is a large amount of evidence that neural activity in MT is tightly correlated with the perception of motion. The mechanisms by which MT neurons achieve their directional selectivity, however, have received considerably less atte...

journal_title：Journal of neurophysiology

authors： Krekelberg B,Albright TD

更新日期：2005-05-01 00:00:00

abstract：:1. The role of the structures of the outer ear in producing monaural and binaural spectral cues to sound location was examined acoustically in the ferret. A probe microphone was introduced across the wall of the external auditory canal and its responses to digitally constructed wideband signals were recorded for a lar...

journal_title：Journal of neurophysiology

authors： Carlile S,King AJ

更新日期：1994-02-01 00:00:00

abstract：:In adults, locomotor movements are accommodated to various support surface conditions by means of specific anticipatory locomotor adjustments and changes in the intersegmental coordination. Here we studied the kinematic strategies of toddlers at the onset of independent walking when negotiating various support surface...

journal_title：Journal of neurophysiology

authors： Dominici N,Ivanenko YP,Cappellini G,Zampagni ML,Lacquaniti F

更新日期：2010-03-01 00:00:00

abstract：:When they are 1-2 mo old, domesticated Mongolian gerbils begin having initially mild seizures which become more severe with age. To evaluate the development of this increasing seizure severity, we obtained field potential responses of the dentate gyrus to paired-pulse stimulation of the perforant path during seizures....

journal_title：Journal of neurophysiology

authors： Buckmaster PS,Wong EH

更新日期：2002-08-01 00:00:00

abstract：:We examined whether presenting an odor with a positive, neutral, or negative name would influence how people perceive it. In experiment 1, 40 participants rated 15 odors for their pleasantness, intensity, and arousal. In experiment 2, 30 participants passively smelled 10 odors while their skin conductance (SC), heart ...

journal_title：Journal of neurophysiology

authors： Djordjevic J,Lundstrom JN,Clément F,Boyle JA,Pouliot S,Jones-Gotman M

更新日期：2008-01-01 00:00:00

abstract：:Stimulus-specific adaptation is the phenomenon whereby neural response magnitude decreases with repeated stimulation. Inconsistencies between recent nonhuman animal recordings and computational modeling suggest dynamic influences on stimulus-specific adaptation. The present human electroencephalography (EEG) study inv...

journal_title：Journal of neurophysiology

authors： Herrmann B,Henry MJ,Fromboluti EK,McAuley JD,Obleser J

更新日期：2015-04-01 00:00:00

abstract：:1. The horizontal eye movements induced by acceleration along the interaural axis were recorded from five monkeys (Macaca mulatta) by the use of the electromagnetic search-coil technique. Animals sat on a sled that was moved briefly in darkness along a linear track (bell-shaped acceleration profile: peak, 400 mm/s2; d...

journal_title：Journal of neurophysiology

authors： Schwarz U,Miles FA

更新日期：1991-09-01 00:00:00

abstract：:Hippocampal interneurons are excited via serotonin-gated ion channels. J. Neurophysiol. 78: 2493-2502, 1997. Serotonergic neurons of the median raphe nucleus heavily innervate hippocampal GABAergic interneurons located in stratum radiatum of area CA1, suggesting that this strong subcortical projection may modulate int...

journal_title：Journal of neurophysiology

authors： McMahon LL,Kauer JA

更新日期：1997-11-01 00:00:00

abstract：:1. Models of the saccadic system propose that there is an integration of the pulse signal, and there is good evidence that the integrator is reset gradually (Nichols and Sparks 1994, 1995). Other studies of the superior collicular contribution to the saccadic system have proposed a sensory, not motor, nature for its s...

journal_title：Journal of neurophysiology

authors： Kustov AA,Robinson DL

更新日期：1995-04-01 00:00:00

abstract：:1. The rostromesial agranular frontal cortex of macaque monkey (Macaca fuscata), traditionally defined as the supplementary motor area (SMA), was studied using various physiological techniques to delineate two different areas rostrocaudally. 2. Field and unitary responses to electrical stimulation of the primary motor...

journal_title：Journal of neurophysiology

authors： Matsuzaka Y,Aizawa H,Tanji J

更新日期：1992-09-01 00:00:00

abstract：:Nonsynaptic mechanisms exert a powerful influence on seizure threshold. It is well-established that nonsynaptic epileptiform activity can be induced in hippocampal slices by reducing extracellular Ca(2+) concentration. We show here that nonsynaptic epileptiform activity can be readily induced in vitro in normal (2 mM)...

journal_title：Journal of neurophysiology

authors： Bikson M,Baraban SC,Durand DM

更新日期：2002-01-01 00:00:00

abstract：:1. The preceding study described a corrective response in cats when one hind leg steps into a hole. In this investigation we examine the extent to which this behavior is organized at the spinal level by comparing the responses elicited in intact and chronic spinal cats. 2. Adult cats were trained to step bipedally wit...

journal_title：Journal of neurophysiology

authors： Hiebert GW,Gorassini MA,Jiang W,Prochazka A,Pearson KG

更新日期：1994-02-01 00:00:00

abstract：:Synchronization of local and distributed neuronal assemblies is thought to underlie fundamental brain processes such as perception, learning, and cognition. In neurological disease, neuronal synchrony can be altered and in epilepsy may play an important role in the generation of seizures. Linear cross-correlation and ...

journal_title：Journal of neurophysiology

authors： Warren CP,Hu S,Stead M,Brinkmann BH,Bower MR,Worrell GA

更新日期：2010-12-01 00:00:00

abstract：:Rhythm generation by the pyloric motor network in the stomatogastric ganglion (STG) of the spiny lobster requires permissive neuromodulatory inputs from other central ganglia. When these inputs to the STG are suppressed by cutting the single, mainly afferent stomatogastric nerve (stn), pyloric neurons cease to burst a...

journal_title：Journal of neurophysiology

authors： Thoby-Brisson M,Simmers J

更新日期：2002-12-01 00:00:00

abstract：:The Wilson-Cowan equations were originally shown to produce limit cycle oscillations for a range of parameters. Others subsequently showed that two coupled Wilson-Cowan oscillators could produce chaos, especially if the oscillator coupling was from inhibitory interneurons of one oscillator to excitatory neurons of the...

journal_title：Journal of neurophysiology

authors： Wilson HR

更新日期：2019-12-01 00:00:00

abstract：:1. The electrical responses of nociceptive (N) lateral and N medial neurons of the leech segmental ganglion to mechanical, chemical, and thermal stimulation of the skin were studied in a superfused ganglion-body wall preparation. 2. Mechanical indentation of the skin > 10 mN evoked in both types of cells a sustained d...

journal_title：Journal of neurophysiology

authors： Pastor J,Soria B,Belmonte C

更新日期：1996-06-01 00:00:00

abstract：:1. We describe a four-layered neural network (Fig. 1), based on the input organization of a collision signaling neuron in the visual system of the locust, the lobula giant movement detector (LGMD). The 250 photoreceptors ("P" units) in layer 1 are excited by any change in illumination, generated when an image edge pas...

journal_title：Journal of neurophysiology

authors： Rind FC,Bramwell DI

更新日期：1996-03-01 00:00:00

abstract：:1. The homeostatic model of delta sleep has provided a useful framework for basic sleep research. This model is based on the relation of delta EEG to the duration of prior waking in man, a relation highlighted by the marked increase (rebound) in the delta EEG of nonrapid eye movement (NREM) sleep that follows total sl...

journal_title：Journal of neurophysiology

authors： Feinberg I,Campbell IG

更新日期：1993-12-01 00:00:00

abstract：:1. The influence of viewing distance on disparity selectivity was investigated in area V1 of behaving monkeys. While the animals performed a fixation task, cortical cells were recorded extracellularly in the foveal representation of the visual field. Disparity selectivity was assessed by using static random dot stereo...

journal_title：Journal of neurophysiology

authors： Trotter Y,Celebrini S,Stricanne B,Thorpe S,Imbert M

更新日期：1996-11-01 00:00:00

abstract：:We examined the effect of the sweet transduction blocker gurmarin on taste responses recorded from neurons in the rat solitary nucleus (NST) to determine how gurmarin sensitivity is distributed across neuronal type. Initially, responses evoked by washing the anterior tongue and palate with 0.5 M sucrose, 0.1 M NaCl, 0...

journal_title：Journal of neurophysiology

authors： Lemon CH,Imoto T,Smith DV

更新日期：2003-08-01 00:00:00

abstract：:Increasing evidence demonstrates that modulating the cGMP-dependent protein kinase G (PKG) pathway produces an array of behavioral phenotypes in the fruit fly, Drosophila melanogaster. Altering PKG activity, either genetically via the foraging (for) gene or using pharmacology modifies tolerance to acute abiotic stress...

journal_title：Journal of neurophysiology

authors： Caplan SL,Milton SL,Dawson-Scully K

更新日期：2013-02-01 00:00:00

abstract：:The uppermost layer (stratum griseum superficiale, SGS) of the superior colliculus (SC) provides an important gateway from the retina to the visual extrastriate and visuomotor systems. The majority of attention has been given to the role of this "visual" SC in saccade generation and target selection and it is generall...

journal_title：Journal of neurophysiology

authors： Girman SV,Lund RD

更新日期：2007-07-01 00:00:00

abstract：:1. The aim of this study was to characterize the signals transmitted by neurons of the medial vestibular nucleus (MVN) to the middle zone of the flocculus in alert cats. 2. Bipolar stimulating electrodes were implanted into the middle zone of each flocculus, because this zone is known to be involved in the control of ...

journal_title：Journal of neurophysiology

authors： Cheron G,Escudero M,Godaux E

更新日期：1996-09-01 00:00:00