Large-scale organization of preferred directions in the motor cortex. II. Analysis of local distributions.

abstract：:N-arachidonoyldopamine (NADA) is an endogenous molecule found in the nervous system that is capable of acting as a vanilloid agonist via the TRPV1 receptor and as a cannabinoid agonist via the CB1 receptor. Using anesthetized rats, we investigated the neural correlates of behavioral thermal hyperalgesia produced by NA...

journal_title：Journal of neurophysiology

authors： Huang SM,Walker JM

更新日期：2006-02-01 00:00:00

abstract：:The inferior temporal cortex (IT) of the monkey, a final stage in the ventral visual pathway, has been known to process information on two-dimensional (2-D) shape, color, and texture. On the other hand, the dorsal visual pathway leading to the posterior parietal cortex has been known to process information on location...

journal_title：Journal of neurophysiology

authors： Uka T,Tanaka H,Yoshiyama K,Kato M,Fujita I

更新日期：2000-07-01 00:00:00

abstract：:Speech stimuli give rise to neural activity in the listener that can be observed as waveforms using magnetoencephalography. Although waveforms vary greatly from trial to trial due to activity unrelated to the stimulus, it has been demonstrated that spoken sentences can be discriminated based on theta-band (3-7 Hz) pha...

journal_title：Journal of neurophysiology

authors： Howard MF,Poeppel D

更新日期：2010-11-01 00:00:00

abstract：:Under constant light-adapted conditions, vision seems to be rather linear. However, the processes underlying the synaptic transmission between cones and second-order neurons (bipolar cells and horizontal cells) are highly nonlinear. In this paper, the gain-characteristics of the transmission from cones to horizontal c...

journal_title：Journal of neurophysiology

authors： Kraaij DA,Spekreijse H,Kamermans M

更新日期：2000-09-01 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：:N-methyl-D-aspartate receptors (NMDARs) are known to regulate axonal refinement and dendritic branching. However, because NMDARs are abundantly present as tri-heteromers (e.g., NR1/NR2A/NR2B) during development, the precise role of the individual subunits NR2A and NR2B in these processes has not been elucidated. Ventr...

journal_title：Journal of neurophysiology

authors： Sepulveda FJ,Bustos FJ,Inostroza E,Zúñiga FA,Neve RL,Montecino M,van Zundert B

更新日期：2010-04-01 00:00:00

abstract：:Mechanisms of direction selectivity and speed selectivity were studied in single neurons of the middle temporal visual area (MT) of behaving macaque monkeys. Visual stimuli were presented in both smooth and stroboscopic motion within a neuron's receptive field as the monkey fixated a stationary point of light. Directi...

journal_title：Journal of neurophysiology

authors： Mikami A,Newsome WT,Wurtz RH

更新日期：1986-06-01 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：:A key element of walking is the coordinated interplay of multiple limbs to achieve a stable locomotor pattern that is adapted to the environment. We investigated intersegmental coordination of walking in the stick insect, Carausius morosus by examining the influence a single stepping leg has on the motoneural activity...

journal_title：Journal of neurophysiology

authors： Borgmann A,Scharstein H,Büschges A

更新日期：2007-09-01 00:00:00

abstract：:Mg2+-extrusion from Mg2+-loaded neurons of the leech, Hirudo medicinalis, is mediated mainly by Na+/Mg2+ antiport. However, in a number of leech neurons, Mg2+ is extruded in the nominal absence of extracellular Na+, indicating the existence of an additional, Na+-independent Mg2+ transport mechanism. This mechanism was...

journal_title：Journal of neurophysiology

authors： Günzel D,Hintz K,Durry S,Schlue WR

更新日期：2005-07-01 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：:Exercise, in the form of moderate daily treadmill training following nerve transection and repair leads to enhanced axon regeneration, but its effect on functional recovery is less well known. Female rats were exercised by walking continuously, at a slow speed (10 m/min), for 1 h/day on a level treadmill, beginning 3 ...

journal_title：Journal of neurophysiology

authors： Boeltz T,Ireland M,Mathis K,Nicolini J,Poplavski K,Rose SJ,Wilson E,English AW

更新日期：2013-06-01 00:00:00

abstract：:The cerebellum of the mormyrid fish consists of three major divisions: the valvula, the central lobes, and the caudal lobes. Several studies have focused on the central lobes and the valvula, but little is known about the caudal lobes. The mormyrid caudal lobe includes anterior and posterior components. The anterior c...

journal_title：Journal of neurophysiology

authors： Zhang Y,Han VZ

更新日期：2007-09-01 00:00:00

abstract：:The caudal primate prefrontal cortex (PFC) is involved in target selection and visually guided saccades through both covert attention and overt orienting eye movements. Unilateral damage to the caudal PFC often leads to decreased awareness of a contralesional target alone, referred to as "neglect," or when it is prese...

journal_title：Journal of neurophysiology

authors： Adam R,Johnston K,Everling S

更新日期：2019-08-01 00:00:00

abstract：:Humans and songbirds shape learned vocalizations during a sensorimotor sensitive period or "babbling" phase. The brain mechanisms that underlie the shaping of vocalizations by sensory feedback are not known. We examined song behavior and brain activity in zebra finches during singing as they actively shaped their song...

journal_title：Journal of neurophysiology

authors： Crandall SR,Aoki N,Nick TA

更新日期：2007-01-01 00:00:00

abstract：:The function of the ventral nucleus of the lateral lemniscus (VNLL), a secondary processing site within the auditory brain stem, is unclear. It is known to be a major source of inhibition to the inferior colliculus (IC). It is also thought to play a role in coding the temporal aspects of sound, such as onsets and the ...

journal_title：Journal of neurophysiology

authors： Nayagam DA,Clarey JC,Paolini AG

更新日期：2005-08-01 00:00:00

abstract：:We have characterized selectivity and sparseness in anterior inferotemporal cortex, using a large data set. Responses were collected from 674 monkey inferotemporal cells, each stimulated by 806 object photographs. This 806 × 674 matrix was examined in two ways: columnwise, looking at responses of a single neuron to al...

journal_title：Journal of neurophysiology

authors： Lehky SR,Kiani R,Esteky H,Tanaka K

更新日期：2011-09-01 00:00:00

abstract：:Sensory neurons appear to adapt their gain to match the variance of signals along the dimension they encode, a property we shall call "contrast normalization." Contrast normalization has been the subject of extensive physiological and theoretical study. We previously found that neurons in the lateral geniculate nucleu...

journal_title：Journal of neurophysiology

authors： Gaudry KS,Reinagel P

更新日期：2007-09-01 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：:Experiments in both conscious and anesthetized animals indicate that intrathecal (i.t.) strychnine (STR; glycine receptor antagonist) produces acute, reversible allodynia, as evidenced by inappropriate behavioral and autonomic responses to cutaneous tactile stimuli. Although STR is known to produce disinhibition of af...

journal_title：Journal of neurophysiology

authors： Sherman SE,Luo L,Dostrovsky JO

更新日期：1997-08-01 00:00:00

abstract：:The recurrent mossy fiber pathway of the dentate gyrus expands dramatically in the epileptic brain and serves as a mechanism for synchronization of granule cell epileptiform activity. It has been suggested that this pathway also promotes epileptiform activity by inhibiting GABA(A) receptor function through release of ...

journal_title：Journal of neurophysiology

authors： Molnár P,Nadler JV

更新日期：2001-05-01 00:00:00

abstract：:Retinal degeneration (rd) leads to progressive photoreceptor cell death, resulting in vision loss. Stimulation of the inner-retinal neurons by neuroprosthetic implants is one of the clinically approved vision-restoration strategies, providing basic visual percepts to blind patients. However, little is understood as to...

journal_title：Journal of neurophysiology

authors： Stutzki H,Helmhold F,Eickenscheidt M,Zeck G

更新日期：2016-10-01 00:00:00

abstract：:Cortical activity contributes significantly to the high variability of sensory responses of interconnected pyramidal neurons, which has crucial implications for sensory coding. Yet, largely because of technical limitations of in vivo intracellular recordings, the coupling of a pyramidal neuron's synaptic inputs to the...

journal_title：Journal of neurophysiology

authors： Wright NC,Hoseini MS,Yasar TB,Wessel R

更新日期：2017-12-01 00:00:00

abstract：:The exercise pressor reflex, a crucial component of the cardiovascular response under physiological and pathophysiological states, is activated via metabolic and mechanical mediators that originate from contracting muscles and stimulate group III and IV afferents. We reported previously that stimulation of mu opioid r...

journal_title：Journal of neurophysiology

authors： Hassan B,Kim JS,Farrag M,Kaufman MP,Ruiz-Velasco V

更新日期：2014-12-15 00:00:00

abstract：:The purpose of these studies was to determine the role of gracile nucleus and the effects of l-arginine-derived nitric oxide (NO) synthesis in the nucleus on the cardiovascular responses to electroacupuncture (EA) stimulation of "Zusanli" (ST36). Arterial blood pressure and heart rate were monitored during EA stimulat...

journal_title：Journal of neurophysiology

authors： Chen S,Ma SX

更新日期：2003-08-01 00:00:00

abstract：:Robust auditory perception plays a pivotal function for processing behaviorally relevant sounds, particularly with distractions from the environment. The neuronal coding enabling this ability, however, is still not well understood. In this study, we recorded single-unit activity from the primary auditory cortex (A1) o...

journal_title：Journal of neurophysiology

authors： Ni R,Bender DA,Shanechi AM,Gamble JR,Barbour DL

更新日期：2017-02-01 00:00:00

abstract：:Primates have a remarkable ability to perceive, recognize, and discriminate among the plethora of people, places, and things that they see, and neural selectivity in the primate inferotemporal (IT) cortex is thought to underlie this ability. Here we investigated the relationship between neural response and perception ...

journal_title：Journal of neurophysiology

authors： Allred S,Liu Y,Jagadeesh B

更新日期：2005-12-01 00:00:00

abstract：:The ability of 17 cats to discriminate floor temperatures 2-4 degrees C below the ambient temperature was tested before and after unilateral electrolytic thalamic lesions. The lesions were made contralateral to the paws showing better performance in the temperature discrimination task. They were aimed at one or more o...

journal_title：Journal of neurophysiology

authors： Norrsell U,Craig AD

更新日期：1999-08-01 00:00:00

abstract：:Much has been studied and written about plastic changes in the CNS of humans triggered by events such as limb amputation. However, little is known about the extent to which the original pathways retain residual function after peripheral amputation. Our earlier, acute study on long-term amputees indicated that central ...

journal_title：Journal of neurophysiology

authors： Dhillon GS,Krüger TB,Sandhu JS,Horch KW

更新日期：2005-05-01 00:00:00

abstract：:The pharynx of C. elegans is a rhythmically active muscle that pumps bacteria into the gut of the nematode. This activity is maintained by action potentials, which qualitatively bear a resemblance to vertebrate cardiac action potentials. Here, the ionic basis of the resting membrane potential and pharyngeal action pot...

journal_title：Journal of neurophysiology

authors： Franks CJ,Pemberton D,Vinogradova I,Cook A,Walker RJ,Holden-Dye L

更新日期：2002-02-01 00:00:00