Dynamics of receptive field size in primary visual cortex.

abstract：:1. We define an extrinsic frame of reference to represent the location of a point in extrapersonal space relative to a human subject's shoulder, and we define an intrinsic frame of reference to represent the orientation of the arm and forearm. 2. We examined the relations between coordinates in the extrinsic and intri...

journal_title：Journal of neurophysiology

authors： Soechting JF,Flanders M

更新日期：1989-08-01 00:00:00

abstract：:The phasing of neuronal activity in a rhythmic motor network is determined by a neuron's intrinsic firing properties and synaptic inputs; these could vary in their relative importance under different modulatory conditions. In the lobster pyloric network, the firing of eight follower pyloric (PY) neurons is shaped by t...

journal_title：Journal of neurophysiology

authors： Johnson BR,Schneider LR,Nadim F,Harris-Warrick RM

更新日期：2005-11-01 00:00:00

abstract：:Interjoint reflex function of the insect leg contributes to postural control at rest or to movement control during locomotor movements. In the stick insect (Carausius morosus), we investigated the role that sensory signals from the femoral chordotonal organ (fCO), the transducer of the femur-tibia (FT) joint, play in ...

journal_title：Journal of neurophysiology

authors： Hess D,Büschges A

更新日期：1999-04-01 00:00:00

abstract：:In neuroendocrine cells, hormone release often requires a collective burst of action potentials synchronized by gap junctions. This is the case for the electrically coupled bag cell neurons in the reproductive system of the marine snail, Aplysia californica. These neuroendocrine cells are found in two clusters, and fi...

journal_title：Journal of neurophysiology

authors： Dargaei Z,Colmers PL,Hodgson HM,Magoski NS

更新日期：2014-12-01 00:00:00

abstract：:The human visual system is remarkably sensitive to environmental regularities, which can facilitate behavioral performance when sensory events conform to past experience. The point at which prior knowledge is integrated during visual perception is unclear, particularly for incidentally learned associations. One possib...

journal_title：Journal of neurophysiology

authors： Hall MG,Mattingley JB,Dux PE

更新日期：2018-04-01 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：:Spontaneous synchronized bursts of activity play an essential role in the maturation and plasticity of neuronal networks. To investigate the cellular properties that enable spontaneous network activity, we used dissociated cultures of hippocampal neurons that express prolonged network activity bursts. Acute exposure t...

journal_title：Journal of neurophysiology

authors： Cohen D,Segal M

更新日期：2009-04-01 00:00:00

abstract：:According to Alexander's law (AL), the slow phase velocity of nystagmus of vestibular origin is dependent on horizontal position, with lower velocity when gaze is directed in the slow compared with the fast phase direction. Adaptive changes in the velocity-to-position neural integrator are thought to cause AL. Althoug...

journal_title：Journal of neurophysiology

authors： Bockisch CJ,Hegemann S

更新日期：2008-12-01 00:00:00

abstract：:Abducens neurons undergo a dose-dependent synaptic blockade (either disinhibition or complete blockade) when tetanus neurotoxin (TeNT) is injected into the lateral rectus muscle at either a low (0.5) or a high dose (5 ng/kg). We studied the firing pattern and recruitment order in abducens neurons both in control and a...

journal_title：Journal of neurophysiology

authors： Pastor AM,Gonzalez-Forero D

更新日期：2003-10-01 00:00:00

abstract：:The relationship among neonatal seizures, abnormalities of the electroencephalogram (EEG), brain injury, and long-term neurological outcome (e.g., epilepsy) remains controversial. The effects of hypoxia alone (Ha) and hypoxia-ischemia (HI) were studied in neonatal rats at postnatal day 7; both models generate EEG seiz...

journal_title：Journal of neurophysiology

authors： Zayachkivsky A,Lehmkuhle MJ,Ekstrand JJ,Dudek FE

更新日期：2015-11-01 00:00:00

abstract：:1. Physiological responses of hippocampal pyramidal neurons in primary culture to prolonged glutamate (GLU) exposure (500 microM in all experiments) were studied with the use of patch electrodes and whole-cell current-clamp recording techniques. In some experiments, perforated patch recordings were employed with elect...

journal_title：Journal of neurophysiology

authors： Coulter DA,Sombati S,DeLorenzo RJ

更新日期：1992-08-01 00:00:00

abstract：:Intrathecally applied nicotine reduces bradykinin-induced plasma extravasation (BK-induced PE) in the rat knee joint. This depression is mediated by the hypothalamo-pituitary-adrenal (HPA) axis and is enhanced by interruption of impulse traffic in afferents of the abdominal vagus nerve. Like intrathecal nicotine, elec...

journal_title：Journal of neurophysiology

authors： Miao FJ,Jänig W,Green PG,Levine JD

更新日期：1997-09-01 00:00:00

abstract：:Visual and motor properties of single neurons of monkey ventral premotor cortex (area F5) were studied in a behavioral paradigm consisting of four conditions: object grasping in light, object grasping in dark, object fixation, and fixation of a spot of light. The employed objects were six different three-dimensional (...

journal_title：Journal of neurophysiology

authors： Murata A,Fadiga L,Fogassi L,Gallese V,Raos V,Rizzolatti G

更新日期：1997-10-01 00:00:00

abstract：:Control of the spatial orientation of the hand is an important component of reaching and grasping movements. We studied the contribution of vision and proprioception to the perception and control of hand orientation in orientation-matching and letter-posting tasks. In the orientation-matching task, subjects aligned a ...

journal_title：Journal of neurophysiology

authors： Gosselin-Kessiby N,Messier J,Kalaska JF

更新日期：2008-04-01 00:00:00

abstract：:1. The purpose of this study is to define the cortical regions that subserve voluntary saccadic eye movements and spatial working memory in humans. 2. Regional cerebral blood flow (rCBF) during performance of oculomotor tasks was measured with [15O]-H2O positron emission tomography (PET). Eleven well-trained, healthy ...

journal_title：Journal of neurophysiology

authors： Sweeney JA,Mintun MA,Kwee S,Wiseman MB,Brown DL,Rosenberg DR,Carl JR

更新日期：1996-01-01 00:00:00

abstract：:Neurons in the inferior colliculus (IC) process acoustic information converging from inputs from almost all nuclei of the auditory brain stem. Despite its importance in auditory processing, little is known about the distribution of ion currents in IC neurons, namely the hyperpolarization-activated current Ih. This cur...

journal_title：Journal of neurophysiology

authors： Koch U,Grothe B

更新日期：2003-12-01 00:00:00

abstract：:Single neurons were recorded from the ventral posteromedial thalamic nucleus (VPM) of urethan-anesthetized rats. Six of these animals were intact, 28 sustained kainic acid (KA) lesions of trigeminal nucleus principalis (PrV), and 9 received similar lesions of trigeminal subnucleus interpolaris (SpVi). Four animals sus...

journal_title：Journal of neurophysiology

authors： Rhoades RW,Belford GR,Killackey HP

更新日期：1987-05-01 00:00:00

abstract：:Electrical stimulation has been delivered to the basal ganglia (BG) to treat intractable symptoms of a variety of clinical disorders. However, it is still unknown how such treatments improve behavioral symptoms. A difficulty of this problem is that artificial signals created by electrical stimulation interact with int...

journal_title：Journal of neurophysiology

authors： Watanabe M,Munoz DP

更新日期：2013-07-01 00:00:00

abstract：:1. Over two thirds of caudal medullary raphespinal neurons respond to electrical stimulation of the vestibular nerve, and it has been suggested that these neurons may participate in the generation of vestibulospinal and vestibulosympathetic reflexes. The objective of the present study was to determine which vestibular...

journal_title：Journal of neurophysiology

authors： Yates BJ,Goto T,Kerman I,Bolton PS

更新日期：1993-09-01 00:00:00

abstract：:To further understand the excitatory effects of motoneurons on spinal network function, we investigated the entrainment of disinhibited rhythms by ventral root (VR) stimulation in the neonatal mouse spinal cord. A brief train of stimuli applied to a VR triggered bursting reliably in 31/32 experiments. The same roots t...

journal_title：Journal of neurophysiology

authors： Bonnot A,Chub N,Pujala A,O'Donovan MJ

更新日期：2009-06-01 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：:Synaptic dynamics comprise a variety of interacting processes acting on a wide range of time scales. This enables a synapse to perform a large array of computations, from temporal and spatial filtering to associative learning. In this study, we describe how changing synaptic gain via long-term plasticity can act to sh...

journal_title：Journal of neurophysiology

authors： Lewis JE,Maler L

更新日期：2004-02-01 00:00:00

abstract：:Efficient sensory coding implies that populations of neurons should represent information-rich aspects of a signal with little redundancy. Recent studies have shown that neural heterogeneity in higher brain areas enhances the efficiency of encoding by reducing redundancy across the population. Here, we study how neura...

journal_title：Journal of neurophysiology

authors： Marsat G,Maler L

更新日期：2010-11-01 00:00:00

abstract：:Smooth pursuit eye movements stabilize slow-moving objects on the retina by matching eye velocity with target velocity. Two critical components are required to generate smooth pursuit: first, because it is a voluntary eye movement, the subject must select a target to pursue to engage the tracking system; and second, g...

journal_title：Journal of neurophysiology

authors： Mitchell JF,Priebe NJ,Miller CT

更新日期：2015-06-01 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：:1. We studied the effect of zinc on the gamma-aminobutyric acid-C (GABAC) receptor in acutely isolated catfish cone horizontal cells using the whole cell patch-clamp technique. 2. GABA activates the GABAC receptor with a half-activation concentration (EC50) of 2.99 microM. The Hill coefficient is 1.32. Desensitization...

journal_title：Journal of neurophysiology

authors： Dong CJ,Werblin FS

更新日期：1995-02-01 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：:Ankle inversions have been studied extensively during standing conditions. However, inversion traumas occur during more dynamic conditions, like walking. Therefore in this study sudden ankle inversions were elicited in 12 healthy subjects who stepped on a trap door while walking on a treadmill. First, 10 control trial...

journal_title：Journal of neurophysiology

authors： Nieuwenhuijzen PH,Duysens J

更新日期：2007-10-01 00:00:00

abstract：:Through their actions in the nucleus accumbens (NAc), kappa opioid (KOP) receptors and their endogenous ligand, dynorphin, modify behaviors associated with the administration of drugs of abuse and are regulated by exposure to such drugs. Despite their demonstrated behavioral significance, the synaptic actions of KOP r...

journal_title：Journal of neurophysiology

authors： Hjelmstad GO,Fields HL

更新日期：2003-05-01 00:00:00

abstract：:Several identified neurons of the Aplysia buccal ganglia respond to choline. Iontophoretic applications of either choline or acetylcholine (ACh) to voltage-clamped inhibitory follower neurons produce similar currents. Peak amplitudes of choline responses were 10-100% of ACh responses on the same cell. Choline currents...

journal_title：Journal of neurophysiology

authors： Gardner D,Ruff RL,White RL

更新日期：1984-01-01 00:00:00