Noise-induced transition to bursting in responses of paddlefish electroreceptor afferents.

abstract：:The lateral hypothalamus (LH), which plays a role in homeostatic functions such as appetite regulation, is also linked to arousal and motivational behavior. However, little is known about how these components are encoded in the LH. Thus cynomolgus monkeys were conditioned with two distinct contexts, i.e., an appetitiv...

journal_title：Journal of neurophysiology

authors： Noritake A,Nakamura K

更新日期：2019-02-01 00:00:00

abstract：:Anatomical and physiological data have implicated the pretectal olivary nucleus (PON) as the midbrain relay for the pupillary light reflex in a variety of species. To determine the nature of the discharge of pretectal light reflex relay neurons, we recorded their activity in monkeys that were fixating a stationary spo...

journal_title：Journal of neurophysiology

authors： Pong M,Fuchs AF

更新日期：2000-08-01 00:00:00

abstract：:We investigated behavior, physiology, sensitivity to exogenous application of ecdysone, and nerve terminal structure for differences between the reduced ecdysone genotype, ecd(1)/ecd(1), and wild-type control ecd(1)/TM6B animals during the early and late third instars when raised at 25 degrees C. The ecd(1) mutants we...

journal_title：Journal of neurophysiology

authors： Li H,Harrison D,Jones G,Jones D,Cooper RL

更新日期：2001-01-01 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：:Many single-unit electrophysiological studies of visual cortex have investigated strong evoked responses to simple stimuli such as oriented gratings. Experiments involving other types of stimuli, such as natural scenes, higher-order features, and surface brightness, produce single-unit responses that are more difficul...

journal_title：Journal of neurophysiology

authors： Hung CP,Ramsden BM,Roe AW

更新日期：2002-05-01 00:00:00

abstract：:1. The effect of cholinergic receptor activation on gamma-aminobutyric acid (GABA)-mediated inhibitory synaptic transmission was investigated in voltage-clamped CA1 pyramidal neurons (HPNs) in the guinea pig hippocampal slice preparation. 2. The cholinergic agonist carbachol (1-10 microM) induced a prominent and susta...

journal_title：Journal of neurophysiology

authors： Behrends JC,ten Bruggencate G

更新日期：1993-02-01 00:00:00

abstract：:A new method is presented based on trinary logic able to check the state of different control variables and synchronously record the physiological and behavioral data of behaving animals and humans. The basic information structure of the method is a time interval of defined maximum duration, called time slice, during ...

journal_title：Journal of neurophysiology

authors： Kutz DF,Marzocchi N,Fattori P,Cavalcanti S,Galletti C

更新日期：2005-06-01 00:00:00

abstract：:1. The fast extensor tibiae motor neuron makes direct excitatory central connections with the posterior group of flexor tibiae motor neurons in the locust metathoracic ganglion. The flexor group has a slow, a fast, and an intermediate motor neuron. The motor neurons are involved in the motor program for kicking and ju...

journal_title：Journal of neurophysiology

authors： Parker D

更新日期：1995-08-01 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：: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

abstract：:1. We study the propagation and dynamics of spindle waves in thalamic slices by developing and analyzing a model of reciprocally coupled populations of excitatory thalamocortical (TC) neurons and inhibitory thalamic reticular (RE) neurons. 2. Each TC neuron has three intrinsic ionic currents: a low-threshold T-type Ca...

journal_title：Journal of neurophysiology

authors： Golomb D,Wang XJ,Rinzel J

更新日期：1996-02-01 00:00:00

abstract：:1. A compartmental model was employed to investigate the electrical behavior of a dendritic spine having excitable membrane at the spine head. Here we used the Hodgkin and Huxley equations to generate excitable membrane properties; in some cases the kinetics were modified to get a longer duration action potential. Pas...

journal_title：Journal of neurophysiology

authors： Segev I,Rall W

更新日期：1988-08-01 00:00:00

abstract：:In layer 2/3 of neocortex, brief trains of action potentials in pyramidal neurons (PNs) induce the mobilization of endogenous cannabinoids (eCBs), resulting in a depression of GABA release from the terminals of inhibitory interneurons (INs). This depolarization-induced suppression of inhibition (DSI) is mediated by ac...

journal_title：Journal of neurophysiology

authors： Lemtiri-Chlieh F,Levine ES

更新日期：2007-11-01 00:00:00

abstract：:Control of myoelectric prostheses and brain-machine interfaces requires learning abstract neuromotor transformations. To investigate the mechanisms underlying this ability, we trained subjects to move a two-dimensional cursor using a myoelectric-controlled interface. With the upper limb immobilized, an electromyogram ...

journal_title：Journal of neurophysiology

authors： Radhakrishnan SM,Baker SN,Jackson A

更新日期：2008-10-01 00:00:00

abstract：:Previous studies have shown that intracortical inhibition (ICI) plays an important role in shaping the output from primary motor cortex (M1). This study explored the muscle specificity and temporal modulation of ICI during the performance of a phasic index finger flexion task. Fifteen subjects were asked to rest their...

journal_title：Journal of neurophysiology

authors： Stinear CM,Byblow WD

更新日期：2003-04-01 00:00:00

abstract：:We investigated whether heptanol and other long-chain alcohols that are known to block gap junctions interfere with the generation or the propagation of spreading depression (SD). Waves of SD were triggered by micro-injection of concentrated KCl solution in stratum (s.) radiatum of CA1 of rat hippocampal tissue slices...

journal_title：Journal of neurophysiology

authors： Largo C,Tombaugh GC,Aitken PG,Herreras O,Somjen GG

更新日期：1997-01-01 00:00:00

abstract：:Voltage-activated currents in blue cones of the retinal slice of zebrafish were characterized using whole cell recording techniques. Depolarizing-elicited currents were recorded: an outward tetraethylammonium (TEA)-sensitive K+ current (IKx), an outward Ca(2+)-activated Cl- current (ICl(Ca)), from which we inferred an...

journal_title：Journal of neurophysiology

authors： Fan SF,Yazulla S

更新日期：1997-03-01 00:00:00

abstract：:The ventrolateral preoptic nucleus (VLPO) is a key nucleus involved in the homeostatic regulation of sleep-wakefulness. Little is known, however, about the cellular mechanisms underlying its role in sleep regulation and how the neurotransmitters, such as GABA and noradrenaline (NA), are involved. In the present study ...

journal_title：Journal of neurophysiology

authors： Matsuo S,Jang IS,Nabekura J,Akaike N

更新日期：2003-03-01 00:00:00

abstract：:The pacemaker current of a bursting neuron of Helix pomatia was investigated using voltage-clamp and pressure-injection techniques. In the steady state the net membrane current was zero near threshold of the action potential at -45 mV. Negative to this potential the membrane current was inward and steady. During burst...

journal_title：Journal of neurophysiology

authors： Swandulla D,Lux HD

更新日期：1985-12-01 00:00:00

abstract：:Although studies of the principal tongue protrudor muscle genioglossus (GG) suggest that whole muscle GG electromyographic (EMG) activities are preserved in nonrapid eye movement (NREM) sleep, it is unclear what influence sleep exerts on individual GG motor unit (MU) activities. We characterized the firing patterns of...

journal_title：Journal of neurophysiology

authors： Bailey EF,Fridel KW,Rice AD

更新日期：2007-12-01 00:00:00

abstract：:The vestibular system plays a critical role in detection of head movements and is essential for normal postural control. Because of their anatomical proximity to the cochlea, the otolith organs are selectively exposed to sound pressure and are at risk for noise overstimulation. Clinical reports suggest a link between ...

journal_title：Journal of neurophysiology

authors： Stewart CE,Kanicki AC,Altschuler RA,King WM

更新日期：2018-02-01 00:00:00

abstract：:Whole cell patch-clamp recordings were used to investigate the contribution of transient, low-threshold calcium currents (I(T)) to firing properties of hamster spinal dorsal horn neurons. I(T) was widely, though not uniformly, expressed by cells in Rexed's laminae I-IV and correlated with the pattern of action potenti...

journal_title：Journal of neurophysiology

authors： Ku WH,Schneider SP

更新日期：2011-11-01 00:00:00

abstract：:Traumatic brain injury (TBI) is one of the most common neurological disorders causing memory reduction, particularly short-term memory (STM). We showed that, during TBI-induced inflammation, increased blood content of fibrinogen (Fg) enhanced vascular protein transcytosis and deposition of extravasated Fg in vasculo-a...

journal_title：Journal of neurophysiology

authors： Charkviani M,Muradashvili N,Sulimai N,Lominadze D

更新日期：2020-08-01 00:00:00

abstract：:The responses of cortical neurons to repeated presentation of a stimulus are highly variable, yet correlated. These "noise correlations" reflect a low-dimensional structure of population dynamics. Here, we examine noise correlations in 22,705 pairs of neurons in primary visual cortex (V1) of anesthetized cats, during ...

journal_title：Journal of neurophysiology

authors： Schulz DP,Sahani M,Carandini M

更新日期：2015-08-01 00:00:00

abstract：:The responses of spinothalamic tract neurons were studied by extra- and intracellular recordings from the lumbosacral spinal cord in anesthetized rhesus monkeys (Macaca mulatta). The neurons were identified by antidromic activation from the contralateral diencephalon. They were then classified by the mildest form of m...

journal_title：Journal of neurophysiology

authors： Foreman RD,Applebaum AE,Beall JE,Trevino DL,Willis WD

更新日期：1975-01-01 00:00:00

abstract：:The corticospinal tract excitability is modulated when preparing movements. Earlier to movement execution, the excitability of the spinal cord increases waiting for supraspinal commands to release the movement. Movement execution and movement observation share processes within the motor system, although movement obser...

journal_title：Journal of neurophysiology

authors： Arias P,Robles-García V,Espinosa N,Corral-Bergantiños Y,Mordillo-Mateos L,Grieve K,Oliviero A,Cudeiro J

更新日期：2014-04-01 00:00:00

abstract：:We propose that the descending command from area 4 that is responsible, in part, for the change in limb trajectory required to step over an obstacle in one's path also plays a role in triggering the anticipatory postural modifications that accompany this movement. To test this hypothesis, we recorded the discharge cha...

journal_title：Journal of neurophysiology

authors： Kably B,Drew T

更新日期：1998-07-01 00:00:00

abstract：:Neuron loss, axon sprouting, and the formation of new synaptic circuits have been hypothesized to contribute to seizures in temporal lobe epilepsy (TLE). Using the kainate-treated rat, we examined how alterations in the density of CA1 pyramidal cells and interneurons, and subsequent sprouting of CA1 pyramidal cell axo...

journal_title：Journal of neurophysiology

authors： Smith BN,Dudek FE

更新日期：2001-01-01 00:00:00

abstract：:During priming of pop-out, performance at discriminating a pop-out feature target in visual search is affected by whether the target on the previous trial was defined by the same feature as on the upcoming trial. Recent studies suggest that priming of pop-out relies on attentional processes. With the use of simultaneo...

journal_title：Journal of neurophysiology

authors： Taylor PC,Muggleton NG,Kalla R,Walsh V,Eimer M

更新日期：2011-12-01 00:00:00

abstract：:Calcium ions are known to play an important role in epileptogenesis. Although there is clear evidence for increased neuronal calcium influx during epileptiform potentials, direct measurements of the corresponding intracellular calcium transients are rare and the origin of calcium influx is not known. Therefore the spa...

journal_title：Journal of neurophysiology

authors： Albowitz B,König P,Kuhnt U

更新日期：1997-01-01 00:00:00