Functional independence of layer IV barrels in rodent somatosensory cortex.

abstract：:The whisker region in the rodent primary motor (MI) cortex receives dense projections from neurons aligned with the layer IV septa in the whisker region of the primary somatosensory (SI) cortex. To compare whisker-induced responses in MI with respect to the SI responses in the septa and adjoining barrel regions, we us...

journal_title：Journal of neurophysiology

authors： Chakrabarti S,Zhang M,Alloway KD

更新日期：2008-07-01 00:00:00

abstract：:Falls during walking are a major cause of poststroke injury, and walking faster may decrease the ability to recover following a gait perturbation. We compared gait stability between high-functioning poststroke individuals and controls and evaluated the effect of gait speed on gait stability. Ten stroke subjects and te...

journal_title：Journal of neurophysiology

authors： Krasovsky T,Lamontagne A,Feldman AG,Levin MF

更新日期：2013-01-01 00:00:00

abstract：:Reaching movements are subject to noise associated with planning and execution, but precisely how these noise sources interact to determine patterns of endpoint variability in three-dimensional space is not well understood. For frontal plane movements, variability is largest along the depth axis (the axis along which ...

journal_title：Journal of neurophysiology

authors： Apker GA,Buneo CA

更新日期：2012-01-01 00:00:00

abstract：:Proinflammatory cytokines may sensitize primary sensory neurons and facilitate development of neuropathic pain processes after peripheral nerve injury. The goal of this study was to determine whether responses of dorsal root ganglion (DRG) neurons to exogenous tumor necrosis factor alpha (TNF-alpha) are altered in a c...

journal_title：Journal of neurophysiology

authors： Liu B,Li H,Brull SJ,Zhang JM

更新日期：2002-09-01 00:00:00

abstract：:Previous studies have revealed a new form of activity-dependent modulation of the afterhyperpolarization (AHP) in tactile (T) neurons of the leech Hirudo medicinalis. The firing of T cells is characterized by an AHP, which is mainly due to the activity of the Na+/K+ ATPase. Low-frequency repetitive stimulation of T ne...

journal_title：Journal of neurophysiology

authors： Scuri R,Mozzachiodi R,Brunelli M

更新日期：2005-08-01 00:00:00

abstract：:We have addressed the source and nature of the persistent neural activity that bridges the stimulus-free gap between the conditioned stimulus (CS) and unconditioned stimulus (US) during trace eyelid conditioning. Previous work has demonstrated that this persistent activity is necessary for trace eyelid conditioning: C...

journal_title：Journal of neurophysiology

authors： Siegel JJ,Kalmbach B,Chitwood RA,Mauk MD

更新日期：2012-01-01 00:00:00

abstract：:1. Whole cell patch-clamp techniques, combined with direct visualization of neurons, were used to study voltage-dependent potassium currents in layer 1 neurons and layer II/III pyramidal cells. 2. In the presence of tetrodotoxin, step depolarizations evoked an outward current. This current had a complex waveform and a...

journal_title：Journal of neurophysiology

authors： Zhou FM,Hablitz JJ

更新日期：1996-08-01 00:00:00

abstract：:Behavioral and neural findings demonstrate that animals can locate low-frequency sounds along the azimuth by detecting microsecond interaural time differences (ITDs). Information about ITDs is also available in the amplitude modulations (i.e., envelope) of high-frequency sounds. Since medial superior olivary (MSO) neu...

journal_title：Journal of neurophysiology

authors： Gai Y,Kotak VC,Sanes DH,Rinzel J

更新日期：2014-08-15 00:00:00

abstract：:A question to be addressed in the present study is how different the eyes-closed (EC) and eyes-open (EO) resting states are across frequency bands in terms of efficiency and centrality of the brain functional network. We investigated both the global and nodal efficiency and betweenness centrality in the EC and EO rest...

journal_title：Journal of neurophysiology

authors： Jin SH,Jeong W,Lee DS,Jeon BS,Chung CK

更新日期：2014-04-01 00:00:00

abstract：:Astrocyte-derived lactate supports pathologically enhanced neuronal metabolism, but its role under physiological conditions is still a matter of debate. Here, we determined the contribution of astrocytic neuronal lactate shuttle for maintenance of ion homeostasis and energy metabolism. We tested for the effects of α-c...

journal_title：Journal of neurophysiology

authors： Angamo EA,Rösner J,Liotta A,Kovács R,Heinemann U

更新日期：2016-11-01 00:00:00

abstract：:In addition to its well-known role in the control of saccades, the primate superior colliculus (SC) has been implicated in the processes of target choice for overt orienting movements and for covert spatial attention. We focally inactivated the SC, by muscimol injection, while monkeys selected the target of a smooth p...

journal_title：Journal of neurophysiology

authors： Nummela SU,Krauzlis RJ

更新日期：2010-09-01 00:00:00

abstract：:Discrete anatomic structures in the monkey somatic sensory thalamus may segregate input arising from different peripheral receptors and from different parts of the body. It has been proposed that these structures serve as components of modality- and place-specific pathways from the periphery to the cortex. We now test...

journal_title：Journal of neurophysiology

authors： Patel S,Ohara S,Dougherty PM,Gracely RH,Lenz FA

更新日期：2006-02-01 00:00:00

abstract：:We developed a sway-referenced system for sitting to highlight the role of vestibular and visual contributions to trunk control. Motor control was investigated by measuring trunk kinematics in the frontal plane while manipulating visual availability and introducing a concurrent cognitive task. We examined motor learni...

journal_title：Journal of neurophysiology

authors： Goodworth AD,Tetreault K,Lanman J,Klidonas T,Kim S,Saavedra S

更新日期：2018-07-01 00:00:00

abstract：:Neurons in primary visual cortex are selective to the orientation and spatial frequency of sinusoidal gratings. In the classic model of cortical organization, a population of neurons responding to the same region of the visual field but tuned to all possible feature combinations provides a detailed representation of t...

journal_title：Journal of neurophysiology

authors： Jimenez LO,Tring E,Trachtenberg JT,Ringach DL

更新日期：2018-07-01 00:00:00

abstract：:Feedback control of our limbs must account for the unexpected offset of mechanical perturbations. Here we examine the evoked activity of elbow flexor and extensor muscles to torque pulses lasting 22-152 ms and how torque offset impacts activity in the long-latency (45-100 ms) and voluntary epochs (120-180 ms). For eac...

journal_title：Journal of neurophysiology

authors： Kurtzer I,Pruszynski JA,Scott SH

更新日期：2010-06-01 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：:There is a great need to develop new approaches for rehabilitation of the upper limb after stroke. Robotic therapy is a promising form of neurorehabilitation that can be delivered in higher doses than conventional therapy. Here we sought to determine whether the reported effects of robotic therapy, which have been bas...

journal_title：Journal of neurophysiology

authors： Kitago T,Goldsmith J,Harran M,Kane L,Berard J,Huang S,Ryan SL,Mazzoni P,Krakauer JW,Huang VS

更新日期：2015-09-01 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：:1. The actions of hydrogen sulfide (HS-) on membrane and synaptic properties of dorsal raphe (DR) serotonergic cells were studied in the in vitro brain stem slice preparation, using intracellular sharp microelectrode and whole-cell recording techniques. 2. Sulfide produced two reversible, concentration-dependent effec...

journal_title：Journal of neurophysiology

authors： Kombian SB,Reiffenstein RJ,Colmers WF

更新日期：1993-07-01 00:00:00

abstract：:1. The antidromic compound action potential (ACAP) of the auditory nerve was evoked by shocks to the auditory nerve root and recorded at the round window of the cochlea in anesthetized guinea pigs. The goal of this study was to determine the characteristics of the ACAP and compare these characteristics with those of t...

journal_title：Journal of neurophysiology

authors： Brown MC

更新日期：1994-05-01 00:00:00

abstract：:Eigenmannia, a genus of weakly electric fish, exhibits a specialized behavior known as the jamming avoidance response (JAR). The JAR results in a categorical difference between Eigenmannia that are in groups of conspecifics and those that are alone. Fish in groups exhibit the JAR behavior and thereby experience ongoin...

journal_title：Journal of neurophysiology

authors： Ramcharitar JU,Tan EW,Fortune ES

更新日期：2006-11-01 00:00:00

abstract：:1. Ca(2+)-dependent K+ currents were studied in large pyramidal neurons (Betz cells) from layer V of cat sensorimotor cortex by use of an in vitro brain slice and single microelectrode voltage clamp. The Ca(2+)-dependent outward current was taken as the difference current obtained before and after blockade of Ca2+ inf...

journal_title：Journal of neurophysiology

authors： Schwindt PC,Spain WJ,Crill WE

更新日期：1992-01-01 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：:Systemic exposure to N-methyl-d-aspartate (NMDA) receptor antagonists can lead to psychosis and prefrontal cortex (PFC)-dependent behavioral impairments. Agonists of metabotropic glutamate 2/3 (mGlu2/3) receptors ameliorate the adverse behavioral effects of NMDA antagonists in humans and laboratory animals, and are be...

journal_title：Journal of neurophysiology

authors： Homayoun H,Jackson ME,Moghaddam B

更新日期：2005-04-01 00:00:00

abstract：:1. We have developed a 16-compartment model that reproduces most of the features of the CA1 pyramidal cell electrophysiology observed experimentally. The model was constructed using seven active ionic conductances: gNa, gCa, gDR, gCT, gA, gM, and gAHP whose kinetics have been, inferred, in most cases, from the availab...

journal_title：Journal of neurophysiology

authors： Warman EN,Durand DM,Yuen GL

更新日期：1994-06-01 00:00:00

abstract：:1. It is widely believed that signals contributing to the receptive field surrounds of retinal bipolar cells pass from horizontal cells to bipolar cells via GABAergic synapses. To test this notion, we applied gamma-aminobutyric acid (GABA) agonists and antagonists to isolated, perfused retinas of the salamander Ambyst...

journal_title：Journal of neurophysiology

authors： Hare WA,Owen WG

更新日期：1996-09-01 00:00:00

abstract：:The location of the human nociceptive area(s) near the Sylvian fissure is still controversial in spite of evidence from imaging and evoked potential studies that noxious heat stimuli activate somatosensory areas in that region. Some studies have suggested the secondary somatosensory cortex (SII) on the upper bank of t...

journal_title：Journal of neurophysiology

authors： Vogel H,Port JD,Lenz FA,Solaiyappan M,Krauss G,Treede RD

更新日期：2003-06-01 00:00:00

abstract：:1. The kinetic properties of embryonic Xenopus spinal cord neuron N-methyl-D-aspartate (NMDA)-activated receptors (NMDAR) were examined at the single-channel level. These receptors have a main conductance state of 50 pS and make occasional sojourns to a subconductance level of approximately 40 pS. The open channel lif...

journal_title：Journal of neurophysiology

authors： Zhang Y,Auerbach A

更新日期：1995-07-01 00:00:00

abstract：:Manipulating a cup by the handle requires compensating for the torque induced by the moment of the mass of the cup relative to the location of the handle. In the present study, we investigated the control strategy of subjects asked to perform grip-lift movements with an object with center of mass located away from the...

journal_title：Journal of neurophysiology

authors： Crevecoeur F,Giard T,Thonnard JL,Lefèvre P

更新日期：2011-12-01 00:00:00

abstract：:Multichannel techniques were used to assess the frequency specificity of activation in the central nucleus of the inferior colliculus (CIC) produced by electrical stimulation of localized regions within the ventral cochlear nucleus (VCN). Data were recorded in response to pure tones from 141 and 193 multiunit clusters...

journal_title：Journal of neurophysiology

authors： Shivdasani MN,Mauger SJ,Rathbone GD,Paolini AG

更新日期：2008-01-01 00:00:00