Local tuning biases in mouse primary visual cortex.

abstract：:Recently developed computational techniques have been used to reduce muscle activation patterns of high complexity to a simple synergy organization and to bring new insights to the long-standing degrees of freedom problem in motor control. We used a nonnegative factorization approach to identify muscle synergies durin...

journal_title：Journal of neurophysiology

authors： Ting LH,Macpherson JM

更新日期：2005-01-01 00:00:00

abstract：:Octopus arms, as well as other muscular hydrostats, are characterized by a very large number of degrees of freedom and a rich motion repertoire. Over the years, several attempts have been made to elucidate the interplay between the biomechanics of these organs and their control systems. Recent developments in electrop...

journal_title：Journal of neurophysiology

authors： Yekutieli Y,Mitelman R,Hochner B,Flash T

更新日期：2007-09-01 00:00:00

abstract：:1. Effects of inositol-1,4,5-trisphosphate (InsP3) applied through a patch pipette to Xenopus laevis olfactory receptor cells (ORCs) were studied using the patch-clamp technique in conjunction with calcium imaging with fura-2. 2. InsP3 activated, first, a novel voltage-independent Ca2+ current (ICa) and, second, a non...

journal_title：Journal of neurophysiology

authors： Schild D,Lischka FW,Restrepo D

更新日期：1995-02-01 00:00:00

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：:1. Single-unit recordings were made, under moderate gaseous anesthesia (33% O2-66% N2O + 0.5/0.6% halothane), in the ventrobasal (VB) thalamic complex of rats (n = 42) with a mononeuropathy created 2-3 wk beforehand, by four loose ligatures around the common sciatic nerve. Before the recording session, three behaviora...

journal_title：Journal of neurophysiology

authors： Guilbaud G,Benoist JM,Jazat F,Gautron M

更新日期：1990-11-01 00:00:00

abstract：:The medial superior temporal area of the macaque monkey extrastriate visual cortex can be divided into a dorsal medial (MSTd) and a lateral ventral (MSTl) region. The functions of the two regions may not be identical: MSTd may process optic flow information that results from the movement of the observer, whereas MSTl ...

journal_title：Journal of neurophysiology

authors： Eifuku S,Wurtz RH

更新日期：1998-07-01 00:00:00

abstract：:1. The synaptic inputs to sustained OFF-center ganglion cells of the mudpuppy retina were studied using a superfused retina-eye-cup preparation. Intra- and extracellular electrophysiological recording techniques were carried out during bath application of 2-amino-4-phosphonobutyrate (APB), a glutamate analog that sele...

journal_title：Journal of neurophysiology

authors： Arkin MS,Miller RF

更新日期：1988-09-01 00:00:00

abstract：:Fragile X syndrome is produced by a defect in a single X-linked gene, called Fmr1, and is characterized by abnormal dendritic spine morphologies with spines that are longer and thinner in neocortex than those from age-matched controls. Studies using Fmr1 knockout mice indicate that spine abnormalities are especially p...

journal_title：Journal of neurophysiology

authors： Desai NS,Casimiro TM,Gruber SM,Vanderklish PW

更新日期：2006-10-01 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：:Mechanoelectric transducer (MET) channels, located near stereocilia tips, are opened by deflecting the hair bundle of sensory hair cells. Defects in this process result in deafness. Despite this critical function, the molecular identity of MET channels remains a mystery. Inherent channel properties, particularly those...

journal_title：Journal of neurophysiology

authors： Pan B,Waguespack J,Schnee ME,LeBlanc C,Ricci AJ

更新日期：2012-05-01 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：:Sustained oscillations of 13-18 Hz were observed in local field potentials (LFPs) in the cerebellar cortex of a behaving monkey. These oscillations, which appeared to be generated in the granular cell layer, were particularly prominent in the paramedian lobule. The oscillatory activity decreased during drowsiness or e...

journal_title：Journal of neurophysiology

authors： Pellerin JP,Lamarre Y

更新日期：1997-12-01 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：:The problem of how the nervous system fuses sensory information from multiple modalities for upright stance control remains largely unsolved. It is well established that the visual, vestibular, and somatosensory modalities provide position and rate (e.g., velocity, acceleration) information for estimation of body dyna...

journal_title：Journal of neurophysiology

authors： Jeka J,Kiemel T,Creath R,Horak F,Peterka R

更新日期：2004-10-01 00:00:00

abstract：:Pyramidal cells and interneurons in rat prefrontal cortical slices exhibit subthreshold oscillations when depolarized by constant current injection. For both types of neurons, the frequencies of these oscillations for current injection just below spike threshold were 2--10 Hz. Above spike threshold, however, the subth...

journal_title：Journal of neurophysiology

authors： Fellous JM,Houweling AR,Modi RH,Rao RP,Tiesinga PH,Sejnowski TJ

更新日期：2001-04-01 00:00:00

abstract：:1. Buffering of glutamate-induced Ca2+ loads in single rat hippocampal neurons grown in primary culture was studied with ratiometric fluorescent Ca2+ indicators. The hypothesis that mitochondria buffer the large Ca2+ loads elicited by glutamate was tested. 2. The relationship between glutamate concentration and the re...

journal_title：Journal of neurophysiology

authors： Wang GJ,Thayer SA

更新日期：1996-09-01 00:00:00

abstract：:Previous analysis of the firing of individual rat hippocampal place cells has shown that their firing rate increases when they enter a place field and that their phase of firing relative to the ongoing theta oscillation (7-12 Hz) varies systematically as the rat traverses the place field, a phenomenon termed the theta...

journal_title：Journal of neurophysiology

authors： Jensen O,Lisman JE

更新日期：2000-05-01 00:00:00

abstract：:Upon prolonged viewing of a sinusoidal grating, the visual system is selectively desensitized to the spatial frequency of the grating, while the sensitivity to other spatial frequencies remains largely unaffected. This technique, known as pattern adaptation, has been so central to the psychophysical study of the mecha...

journal_title：Journal of neurophysiology

authors： Hegdé J

更新日期：2009-10-01 00:00:00

abstract：:Extracellular recordings were made from cold-receptive afferent fibers in the trigeminal ganglion of rats anesthetized with halothane. By applying a standardized series of steady or changing temperatures to the receptive fields, we recorded the static and dynamic responses of the afferents. Comparable recordings were ...

journal_title：Journal of neurophysiology

authors： Davies SN,Goldsmith GE,Hellon RF,Mitchell D

更新日期：1985-02-01 00:00:00

abstract：:The nucleus of the tractus solitarius (NTS) plays an important role in the control of several autonomic reflex functions and has glutamate and GABA as main neurotransmitters. In this work, we used patch-clamp recordings in transverse slice preparations from rats to study whether the glycine binding site of the N-methy...

journal_title：Journal of neurophysiology

authors： Baptista V,Varanda WA

更新日期：2005-07-01 00:00:00

abstract：:An orthodromically evoked late hyperpolarizing potential (LHP) was studied using intracellular recording techniques in rat hippocampal CA1 pyramidal cells in vitro. Several tests indicated that the LHP is not blocked by GABA antagonists, but rather comprises the initial portion of the stimulation-induced burst afterhy...

journal_title：Journal of neurophysiology

authors： Alger BE

更新日期：1984-11-01 00:00:00

abstract：:Divergence of the Shaker superfamily of voltage-gated (Kv) ion channels early in metazoan evolution created numerous electrical phenotypes that were presumably selected to produce a wide range of excitability characteristics in neurons, myocytes, and other cells. A comparative approach that emphasizes this early radia...

journal_title：Journal of neurophysiology

authors： Klassen TL,Buckingham SD,Atherton DM,Dacks JB,Gallin WJ,Spencer AN

更新日期：2006-05-01 00:00:00

abstract：:The activity patterns in self- and cross-reinnervated flexor digitorum longus (FDL) and soleus (SOL) muscles were examined during natural movements in awake, unrestrained cats in which electromyographic (EMG) electrodes, tendon-force gauges, and muscle-length gauges had been chronically implanted under anesthesia and ...

journal_title：Journal of neurophysiology

authors： O'Donovan MJ,Pinter MJ,Dum RP,Burke RE

更新日期：1985-10-01 00:00:00

abstract：:1. Human flexor reflex (HFR) responses were elicited during ergometer cycling in neurologically intact humans with the objective of understanding the influence of lower limb muscle activity on phase-dependent reflex modulation during movement. The experimental setup permitted control over background muscle activity an...

journal_title：Journal of neurophysiology

authors： Brown DA,Kukulka CG

更新日期：1993-04-01 00:00:00

abstract：:1. This paper examines the electrophysiological properties of cultured rat adrenal chromaffin cells at different stages of neuron-like morphological differentiation in response to nerve growth factor (NGF). 2. Chromaffin cells display a large variability in the morphological changes after exposure to NGF. However, a m...

journal_title：Journal of neurophysiology

authors： Islas-Suárez L,Gómez-Chavarín M,Drucker-Colín R,Hernández-Cruz A

更新日期：1994-10-01 00:00:00

abstract：:During seizure-like events (SLEs), intracellular Ca2+ concentration ([Ca2+]i) increases causing depolarization of the mitochondrial membrane and subsequent intramitochondrial accumulation of Ca2+. Mitochondrial depolarization results in an interruption of oxidative phosphorylation and increase in reactive oxygen speci...

journal_title：Journal of neurophysiology

authors： Schuchmann S,Buchheim K,Meierkord H,Heinemann U

更新日期：1999-01-01 00:00:00

abstract：:Task-dependent selectivity of movement-related neuronal activity in the primate prefrontal cortex. J. Neurophysiol. 80: 3392-3397, 1998. We studied movement-related neuronal activity in the dorsolateral prefrontal cortex from the perspective of a general role for the prefrontal cortex in controlling motor behavior to ...

journal_title：Journal of neurophysiology

authors： Hoshi E,Shima K,Tanji J

更新日期：1998-12-01 00:00:00

abstract：:In this study we attempted to identify the principles that govern the changes in neural control that occur during repeated performance of a multiarticular coordination task. Eight participants produced isometric flexion/extension and pronation/supination torques at the radiohumeral joint, either in isolation (e.g., fl...

journal_title：Journal of neurophysiology

authors： Shemmell J,Forner M,Tresilian JR,Riek S,Barry BK,Carson RG

更新日期：2005-11-01 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：:Spatiotemporal convergence and two-dimensional (2-D) neural tuning have been proposed as a major neural mechanism in the signal processing of linear acceleration. To examine this hypothesis, we studied the firing properties of primary otolith afferents and central otolith neurons that respond exclusively to horizontal...

journal_title：Journal of neurophysiology

authors： Angelaki DE,Dickman JD

更新日期：2000-10-01 00:00:00