Excitatory amino acid receptors in the caudal ventrolateral medulla mediate a vagal cardiopulmonary reflex in the rat.

abstract：:Reaching to a veridical target permits an egocentric spatial code (i.e., absolute limb and target position) to effect fast and effective online trajectory corrections supported via the visuomotor networks of the dorsal visual pathway. In contrast, a response entailing decoupled spatial relations between stimulus and r...

journal_title：Experimental brain research

authors： Manzone J,Heath M

更新日期：2018-04-01 00:00:00

abstract：:In addition to giving primary projections to the parabrachial and periaqueductal gray regions, ascending lamina I projections course through and terminate in brainstem regions known to contain catecholaminergic cells. For this reason, double-labeling experiments were designed for analysis with light and electron micro...

journal_title：Experimental brain research

authors： Westlund KN,Craig AD

更新日期：1996-07-01 00:00:00

abstract：:The brain noradrenaline (NA) system is known to modulate ischemic neuronal damage, and the turnover of NA has been suggested to increase in the early recovery period following cerebral ischemia. Using HPLC and gas chromatography-mass spectrometry we analyzed the tissue levels of NA and its metabolites, 3,4-dihydroxyph...

journal_title：Experimental brain research

authors： Gustafson I,Lidén A,Wieloch T

更新日期：1992-01-01 00:00:00

abstract：:The purpose of this study was to investigate the time-course of corticospinal excitability during reaction time (RT), and compare the excitability when a precue provided information regarding both the direction and extent of the upcoming movement ('Full' condition), specified the direction of the upcoming movement onl...

journal_title：Experimental brain research

authors： McMillan S,Nougier V,Byblow WD

更新日期：2004-05-01 00:00:00

abstract：:Limitations in visual working memory (VWM) have been extensively studied in psychophysical tasks, but not well understood in terms of how these memory limits translate to performance in more natural domains. For example, in reaching to grasp an object based on a spatial memory representation, overshooting the intended...

journal_title：Experimental brain research

authors： Lerch RA,Sims CR

更新日期：2016-06-01 00:00:00

abstract：:The aim of this investigation was to understand the functions of long horizontal connections projecting from area 17 to area 18 in cats. The animals were anesthetized and prepared for recording single-cell responses to sine-wave gratings in area 18. Neuronal activity was analyzed under three conditions: prior to, duri...

journal_title：Experimental brain research

authors： Ruan DY,Chabli A,Molotchnikoff S

更新日期：1997-03-01 00:00:00

abstract：:Path integration studies in humans show that we have the ability to accurately reproduce our path in the absence of visual information. It has been suggested that this ability is supported by acceleration signals, as transduced by the otolith organs, which may then be integrated twice to produce path excursion. Vestib...

journal_title：Experimental brain research

authors： Seidman SH

更新日期：2008-01-01 00:00:00

abstract：:Nine participants performed a reciprocal precision aiming task under different experimental conditions. Due to the anisotropy of the work space, varying the direction of motion (from 0 degrees to 315 degrees in steps of 45 degrees ) allowed exploration of the effects of biomechanical constraints that were found to aff...

journal_title：Experimental brain research

authors： Fernandez L,Bootsma RJ

更新日期：2004-12-01 00:00:00

abstract：:Standing and walking are very different tasks. It might be reasonable, therefore, to assume that the mechanisms used to maintain the stability of standing and walking should be quite different. However, many studies have shown that postural stability measures can generally predict risk of falls, even though most falls...

journal_title：Experimental brain research

authors： Kang HG,Dingwell JB

更新日期：2006-06-01 00:00:00

abstract：:Using a special tetrazolium salt technique, a striking correlation was observed between Na+ concentration of the incubation medium and the formation of formazan catalyzed by glutamate dehydrogenase (GDH) in glutamatergic neuropil areas of the hippocampal formation, cerebellum, and other brain regions. Na+ concentratio...

journal_title：Experimental brain research

authors： Wolf G,Schünzel G,Rothe F

更新日期：1986-01-01 00:00:00

abstract：:The present review examines the experimental evidence supporting the existence of central mechanisms able to modulate the synaptic effectiveness of sensory fibers ending in the spinal cord of vertebrates. The first section covers work on the mode of operation and the synaptic mechanisms of presynaptic inhibition, in p...

journal_title：Experimental brain research

authors： Rudomin P,Schmidt RF

更新日期：1999-11-01 00:00:00

abstract：:An object held in precision grip creates predictable load forces on the hand during voluntary hand movement and these are associated with anticipatory modulation of grip force. Conflicting results have been obtained over whether predictable external load perturbations result in anticipatory grip force responses (e.g. ...

journal_title：Experimental brain research

authors： Kwok HF,Wing AM

更新日期：2006-10-01 00:00:00

abstract：:Several recent studies indicate that saccades elicited in the absence of a visual target are slower than visually-guided movements of the same size. In addition, we have shown earlier that the slower saccades observed in two different paradigms had more asymmetrical (skewed) velocity profiles. Recently, it has been re...

journal_title：Experimental brain research

authors： Smit AC,Van Gisbergen JA

更新日期：1989-01-01 00:00:00

abstract：:A series of step-tracking experiments was conducted before, during, and after a 3-week space mission to assess the effects of prolonged microgravity on a non-postural motor-control task. In- and post-flight accuracy was affected only marginally. However, kinematic analyses revealed a considerable change in the underly...

journal_title：Experimental brain research

authors： Sangals J,Heuer H,Manzey D,Lorenz B

更新日期：1999-12-01 00:00:00

abstract：:The horizontal and vertical components of the positions of both eyes of rhesus monkeys were measured during periods of binocularly stable eye positions (eye pauses) while the animals fixated a small target. Differences between monocular and binocular viewing, as well as effects of target size and background illuminati...

journal_title：Experimental brain research

authors： Motter BC,Poggio GF

更新日期：1984-01-01 00:00:00

abstract：:The remote distractor effect is a robust finding whereby a saccade to a lateralised visual target is delayed by the simultaneous, or near simultaneous, onset of a distractor in the opposite hemifield. Saccadic inhibition is a more recently discovered phenomenon whereby a transient change to the scene during a visual t...

journal_title：Experimental brain research

authors： Buonocore A,McIntosh RD

更新日期：2008-10-01 00:00:00

abstract：:Under free-viewing conditions, the leftward stimulus features are frequently overestimated (pseudoneglect). This asymmetry could reflect the operation of: (a) spatial attention mechanisms in the right hemisphere (RH) or, (b) stimulus-specific activation. To test these propositions, we attempted to induce a stimulus-sp...

journal_title：Experimental brain research

authors： Okubo M,Nicholls ME

更新日期：2006-06-01 00:00:00

abstract：:It is known that non-clinical subjects with high levels of schizotypal personality traits (High-S), as well as schizophrenic patients, have difficulties to judge how a scene would appear (so-called Appearance questions) from a point of view other than their own after having performed a disembodied perspective taking (...

journal_title：Experimental brain research

authors： Vastano R,Sulpizio V,Steinisch M,Comani S,Committeri G

更新日期：2014-10-01 00:00:00

abstract：:The present experiment was designed to test the hypothesis that fatigue-induced impairment in movement accuracy is caused by a decrease in muscle cocontraction rather than a reduced ability to produce muscular force. Seven participants performed fast and accurate elbow extensions aimed at a target, before and after a ...

journal_title：Experimental brain research

authors： Missenard O,Mottet D,Perrey S

更新日期：2008-02-01 00:00:00

abstract：:During saccadic eye movements, images of external objects move rapidly across the retina. Small, unpredictable displacements imposed upon a target moving at saccadic velocity were detected with equal accuracy when (1) the retinal image velocity was caused by an eye movement, or (2) when the same velocity was produced ...

journal_title：Experimental brain research

authors： Brooks BA,Yates JT,Coleman RD

更新日期：1980-01-01 00:00:00

abstract：:The present study attempted to demonstrate that the indicator arm influences end point distribution in contralateral multi-joint proprioceptive tasks and also that intrinsic physical characteristics of multi-joint arms (arm stiffness) may predict the error pattern. For this purpose, we carried out two types of contral...

journal_title：Experimental brain research

authors： Itaguchi Y,Fukuzawa K

更新日期：2012-10-01 00:00:00

abstract：:This study exploited the alterations in pedal speed and joints kinematics elicited by changing crank length (CL) to test how altered task mechanics during cycling will modulate the muscle activation characteristics in human rectus femoris (RF), biceps femoris long head (BF), soleus (SOL) and tibialis anterior (TA). Ki...

journal_title：Experimental brain research

authors： Mileva K,Turner D

更新日期：2003-10-01 00:00:00

abstract：:The short-latency electromyographic response evoked by transcranial magnetic stimulation (MEP) increases in size during fatigue, but the mechanisms are unclear. Because large changes occur in the muscle action potential, we tested whether changes in the response to stimulation of the peripheral motor nerve could fully...

journal_title：Experimental brain research

authors： Taylor JL,Butler JE,Gandevia SC

更新日期：1999-07-01 00:00:00

abstract：:In the present study the neurotoxic effects of a low dosage (0.5 mg/kg per day) of methylmercury (MeHg) on the developing nervous system were investigated. Pregnant rats were treated with MeHg from day 7 of pregnancy to day 7 of lactation. Locomotor activity (locomotion, rearing, and motility) and spatial learning abi...

journal_title：Experimental brain research

authors： Rossi AD,Ahlbom E,Ogren SO,Nicotera P,Ceccatelli S

更新日期：1997-12-01 00:00:00

abstract：:We recently demonstrated the existence of neurogenesis in the striatum of adult monkeys, but the number of striatal neurons generated under normal conditions was too small to establish their chemical phenotype. We therefore used brain-derived neurotrophic factor (BDNF), which promotes neuronal differentiation and surv...

journal_title：Experimental brain research

authors： Bédard A,Gravel C,Parent A

更新日期：2006-04-01 00:00:00

abstract：:The goal of the present investigation was to determine the time-course by which the motor system might resolve the context-dependent effects of a visual illusion [i.e., the Müller-Lyer (ML) figure]. Specifically, we asked participants to scale their grip aperture (GA) to the perceived size of an object embedded within...

journal_title：Experimental brain research

authors： Heath M,Rival C,Binsted G

更新日期：2004-10-01 00:00:00

abstract：:Research on joint attention has addressed both the effects of gaze following and the ability to share representations. It is largely unknown, however, whether sharing attention also affects the perceptual processing of jointly attended objects. This study tested whether attending to stimuli with another person from op...

journal_title：Experimental brain research

authors： Böckler A,Knoblich G,Sebanz N

更新日期：2011-06-01 00:00:00

abstract：:The muscle activation patterns in anterior and posterior leg muscles were investigated with two types of perturbations to standing balance. Subjects stood with each foot on adjacent force platforms and performed arm flexion movements to shoulder height. Nine subjects performed ten repetitions unilaterally and bilatera...

journal_title：Experimental brain research

authors： Mochizuki G,Ivanova TD,Garland SJ

更新日期：2004-04-01 00:00:00

abstract：:The present study assessed changes in perceived heaviness of weights lifted by the thumb, index, ring and little fingers during anaesthesia of the "lifting" digit. Subjects (n = 19) lifted weights solely by flexion of the distal joint of the digit, using a bilateral weight-matching paradigm. Changes in perceived heavi...

journal_title：Experimental brain research

authors： Kilbreath SL,Refshauge K,Gandevia SC

更新日期：1997-12-01 00:00:00

abstract：:Spatial orientation is crucial when subjects have to accurately reach memorized visual targets. In previous studies modified gravitoinertial force fields were used to affect the accuracy of pointing movements in complete darkness without visual feedback of the moving limb. Target mislocalization was put forward as one...

journal_title：Experimental brain research

authors： Prieur JM,Bourdin C,Vercher JL,Sarès F,Blouin J,Gauthier GM

更新日期：2005-03-01 00:00:00