Abstract：
:Motor-unit activity in m. biceps brachii during isometric flexion contractions has been compared with motor-unit activity during a) slow voluntary movements against constant or increasing preloads and b) flexion contractions while movements were imposed by a torque motor. Recruitment levels and firing frequency behaviour of the motor units were found to be very similar when torques were generated during isometric contractions and during the imposed movements. However, these characteristics of the biceps motor units were quite different during the slow voluntary movements. It is suggested that the central activation of the alpha and/or gamma motoneurone pools of m. biceps brachii is different for force tasks and slow movement tasks, even if the same torques are exerted and/or movements are made.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Tax AA,Denier van der Gon JJ,Gielen CC,Kleyne Mdoi
10.1007/BF00228882subject
Has Abstractpub_date
1990-01-01 00:00:00pages
138-42issue
1eissn
0014-4819issn
1432-1106journal_volume
79pub_type
杂志文章abstract：:1. Individual neurons were recorded extracellularly in the precentral forelimb area of two monkeys trained to perform rapid, large amplitude flexion and extension movements of the contralateral forearm in response to auditory signals. Electromyographic (EMG) activity in the biceps/triceps muscles was recorded separate...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228859
更新日期：1990-01-01 00:00:00
abstract：:"Multisensory integration" refers to the phenomenon by which information from different senses is integrated in order to interpret and guide responses to external events. Here, we advance two specific hypotheses: (1) the process of multisensory integration in spatial localization is statistically optimal, and (2) the ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0847-2
更新日期：2007-06-01 00:00:00
abstract：:A strong subjective tendency exists for simultaneous sound frequencies forming an harmonic series (integer multiples of the fundamental) to "group" together into a unified auditory percept whose pitch is similar to that of the fundamental. The aim of the study was to determine whether cortical auditory evoked potentia...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1482-9
更新日期：2003-06-01 00:00:00
abstract：:The distribution of synaptic zinc after short-term (up to 48 h) tactile deprivation of vibrissae was investigated in the barrel cortex of mice using histochemical staining. In adult mice, 12 h after trimming selected rows of vibrissae, an increase in zinc staining in the deprived barrels was observed. This increase wa...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-001-0923-6
更新日期：2001-12-01 00:00:00
abstract：:Migraine affects the autonomous nervous system and a recent investigation has also proposed a severe disturbance of dynamic cerebral blood flow regulation in the middle cerebral artery during spontaneous blood pressure oscillations. This study investigates whether dynamic cerebral autoregulation is impaired in persons...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-0879-2
更新日期：2007-07-01 00:00:00
abstract：:Previous work has indicated that people do not use their judgment of a target's speed to determine where to hit it. Instead, they use their judgment of the target's changing position and an expected speed (based on the speed of previous targets). In the present study we investigate whether people also ignore the targe...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1556-8
更新日期：2003-10-01 00:00:00
abstract：:Growing evidence suggests that blind subjects outperform the sighted on certain tactile discrimination tasks depending on cutaneous inputs. The purpose of this study was to compare the performance of blind (n = 14) and sighted (n = 15) subjects in a haptic angle discrimination task, depending on both cutaneous and pro...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1327-7
更新日期：2008-06-01 00:00:00
abstract：:Observing an action activates action representations in the motor system. Moreover, the representations of manipulable objects are closely linked to the motor systems at a functional and neuroanatomical level. Here, we investigated whether action observation can facilitate object recognition using an action priming pa...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1953-8
更新日期：2010-01-01 00:00:00
abstract：:Alcohol exposure can reduce adult proliferation and/or neurogenesis, but its impact on the ultimate neurogenic precursors, neural stem cells (NSCs), has been poorly addressed. Accordingly, the impact of voluntary consumption of alcohol on NSCs in the subventricular zone (SVZ) of the lateral ventricle was examined in t...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-014-3958-1
更新日期：2014-09-01 00:00:00
abstract：:Fast backward trunk movements are accompanied by hip, knee and ankle rotation which compensate for the backward shift of the center of gravity. The electromyographic pattern associated with the performance of these movements and the associated synergies consists of a fairly synchronous activation of the prime mover (e...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00248275
更新日期：1989-01-01 00:00:00
abstract：:In the base of each temporal lobe in 4 monkeys (Macaca fascicularis) we sectioned the pia mater in an antero-posterior line along the most medial part of the inferior temporal visual association cortex (area TE), lateral to the parahippocampal cortex. This pial section interrupts the blood flow in branches of the post...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228525
更新日期：1991-01-01 00:00:00
abstract：:A recent study by our group showed that the scaling of reach trajectories to target size is independent of conscious visual awareness of that intrinsic target property (Binsted et al. in Proc Natl Acad Sci USA 104:12669-12672, 2007). The present investigation sought to extend previous work and determine whether uncons...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1385-x
更新日期：2008-07-01 00:00:00
abstract：:EMG responses, vertical and A-P shear forces and kinematics of "automatic postural responses" to unexpected translational perturbations in the headward and tailward directions were studied in cats. Muscles acting on the major joints of the forelimbs and hindlimbs were studied. Movement of the animals in response to pe...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238231
更新日期：1983-01-01 00:00:00
abstract：:The development of visual cell properties was studied in cortical Area 18 (A18) of normal (NRs) and dark-reared kittens (DRs), from 2 weeks of age to adulthood. In addition to the orientation selective (S) and non-selective (NS) cells, we describe a new type of non-selective cell with a peripheral zone (NSp), which co...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247518
更新日期：1988-01-01 00:00:00
abstract：:Single cell activity was recorded from the putamen in rhesus monkeys (Macaca mulatta) performing limb movements made both with and without a preceding preparatory "set" concerning the impending direction of movement. The monkeys were trained to perform an elbow step-tracking task, each trial of which required the subj...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247293
更新日期：1987-01-01 00:00:00
abstract：:In the present article a number of comparative lesion studies in two inbred strains of mice (C57BL/6 and DBA/2) with different levels of radial maze performance are reviewed. The effects of lesions in several brain areas on maze learning were investigated, thus revealing strain differences in the neural circuitry subs...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s002210050542
更新日期：1998-11-01 00:00:00
abstract：:Automatic postural responses of leg muscles to the sudden displacement of standing support were investigated under four different conditions of information given to subjects in advance. Results from three groups of subjects were compared: 6 normal subjects, 10 patients with cerebellar disease, and 9 patients with Park...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231777
更新日期：1991-01-01 00:00:00
abstract：:Proprioception is used by the central nervous system (CNS) in the control of the spatial and temporal characteristics of single joint and multiple joint movement. The present study addressed the role of proprioception in the control of bilateral cyclical movements of the limbs. Normal blindfolded human subjects drew c...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050788
更新日期：1999-07-01 00:00:00
abstract：:We investigated the effect of different spatial and temporal parameters on the saccadic reaction times (SRTs) of the antisaccades and on the frequency and the SRTs of erratic prosaccades in five adult human subjects. The subjects were instructed to aim their saccades to the side opposite to where a visual go-stimulus ...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/pl00005749
更新日期：1997-09-01 00:00:00
abstract：:Accurate information about gaze direction is required to direct the hand towards visual objects in the environment. In the present experiments, we tested whether retinal inputs affect the accuracy with which healthy subjects indicate their gaze direction with the unseen index finger after voluntary saccadic eye moveme...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1029-5
更新日期：2002-06-01 00:00:00
abstract：:Our previous studies showed that a fully extended finger, wrist, and elbow became a flexed phantom hand and arm with ischemic anesthesia, and vice versa (Inui et al. in J Physiol 589:5775-5784, 2011, Exp Brain Res 221:369-375, 2012a, Exp Brain Res 218:487-494, 2012b). It was anticipated that if the ankle and knee were...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-013-3460-1
更新日期：2013-05-01 00:00:00
abstract：:Stimulus-response compatibility (SRC) effects are classified depending on the way that the elements of the stimulus and response sets interact, influencing both the speed and accuracy of the motor response. This is particularly important for social stimuli, such as hands. However, the stimuli used in most SRC studies ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4283-z
更新日期：2015-07-01 00:00:00
abstract：:Responses to binocular visual stimulation were compared in cortical area 18 of normal cats and in cats in which one eye was exodeviated by surgery early in postnatal life. In contrast to normal cats where most units (58%) were binocularly activated, relatively few units (10%) in strabismic cats were activated well by ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238169
更新日期：1984-01-01 00:00:00
abstract：:The aim of this study was to evaluate the hypothesis that an individual's preferred or usual walking speed, step length and cadence optimize the stability of head and pelvic accelerations in vertical (V), anterior-posterior (AP) and medio-lateral (ML) planes when walking. Acceleration patterns of the head and pelvis w...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-1094-x
更新日期：2008-01-01 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
pub_type： 杂志文章
doi：10.1007/s00221-003-1732-x
更新日期：2004-04-01 00:00:00
abstract：:A preparation is described that permits the monitoring of activity from individual muscle afferent nerve fibres in an intact peripheral nerve in the forelimb of the cat. The nerve is a fine branch of the deep radial that supplies the indicis proprius muscle. When it is freed from nearby tissue over a length of 2-5 cm ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF02454157
更新日期：1997-01-01 00:00:00
abstract：:Navigation through complex environments requires a greater degree of control and attentional resources from the central nervous system to ensure postural stability and efficient goal completion as compared to quiet standing or unobstructed walking. Furthermore, when a cognitive task is also performed in a dual-task sc...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4461-z
更新日期：2016-02-01 00:00:00
abstract：:Previous studies have reported abnormalities in fine hand and finger movements following interruption of the fasciculus cuneatus (FC) in primates. We report here that many of these deficits could be caused by an inability to actively regulate the position of the finger. Three macaques were trained to maintain the inde...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227785
更新日期：1993-01-01 00:00:00
abstract：:The superior colliculus has long been recognized as an important structure in the generation of saccadic displacements of the visual axis. Neurons with presaccadic activity encoding saccade vectors are topographically organized and form a "motor map." Recently, neurons with fixation-related activity have been recorded...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00243221
更新日期：1994-01-01 00:00:00
abstract：:Sensory experience during perinatal life and adulthood modifies physiological and anatomical characteristics of the central nervous system. So far, this phenomenon has been studied in situations of complete or partial sensory deprivation. We here report that increased sensory stimulation, during four days, of a number...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230256
更新日期：1989-01-01 00:00:00
