Abstract：
:The moment production by several fingers on a mechanically fixed vertically oriented handle was studied under the systematic variations of task parameters such as (a) moment magnitude (1.0 Nm and 2.0 Nm) and (b) direction of moment production (into pronation and supination), as well as (c) vertical position of the handle from the moment axis, P (0, 2.0, 4.0, and 6.0 cm in both directions). The purpose of this study was twofold: to investigate the dependences between the task parameters and the performance variables and to test the mechanical advantage hypothesis. The performance variables changed symmetrically with P. In particular, magnitudes of the net horizontal and vertical forces both showed an S-shape change. The position of the point of zero free moment (PZFM) was determined. In the intermediate grasp locations (when 0< P magnitude journal_name journal_title authors doi keywords: subject pub_date pages issue eissn issn journal_volume pub_type
abstract：:The gain (ratio of eye velocity to head velocity) of the initial horizontal vestibulo-ocular reflex (VOR) was calculated in 12 normal subjects over 350 ms during impulsive, unpredictable whole body rotation under three conditions: (1) darkness; (2) visual enhancement of the VOR, while the subjects fixated a stationary...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/BF00239596
更新日期：1994-01-01 00:00:00
abstract：:A double-labelling anatomical strategy employing horseradish peroxidase and tritiated, enzymatically inactive horseradish peroxidase allowed simultaneous visualization of corticospinal neurones and cortical neurones projecting to the dorsal column nuclei in cats. By this approach it is shown that although most cortica...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238364
更新日期：1981-01-01 00:00:00
abstract：:Pieces of the developing cerebellar anlage were prepared from 13-15 day old rat embryos and transplanted to the cerebellar region of 5-7 and 13-14 day old rat pups. Approximately two months later, sections showed most grafts to consist of both cerebellar cortex, with a typical trilaminar organization, and white matter...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237288
更新日期：1984-01-01 00:00:00
abstract：:We explored digit coordination during the acceleration phase of a quick lifting movement of a hand-held horizontal object. We tested three hypotheses related to: (1) the scaling of mechanical variables produced by the hand with changes in the external load, torque, and moment of inertia; (2) changes in the safety marg...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3215-4
更新日期：2012-10-01 00:00:00
abstract：:In the context of an analysis concerning factors of importance for the relative contributions of recruitment and rate gradation of muscle force, the distribution of electrical excitability was analyzed for medial gastrocnemius (MG) motoneurones of rat and cat. The experimental data came from previously collected intra...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00232439
更新日期：1994-01-01 00:00:00
abstract：:Paired associative stimulation (PAS) can increase motor cortical excitability, possibly by long-term potentiation (LTP)-like mechanisms. As the capability of the cortex for plasticity decreases with age, we were interested here in testing interindividual variability and age-dependency of the PAS effect. Motor-evoked p...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1319-7
更新日期：2008-05-01 00:00:00
abstract：:Amyotrophic lateral sclerosis (ALS) is a late-onset, neurodegenerative disease associated with the loss of motor neurons in the spinal cord, brain stem and primary motor cortex. Deficit in the motor function is one of the clinical features of this disease. However, the association between adverse morphological alterat...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-020-05969-7
更新日期：2020-11-10 00:00:00
abstract：:The present study aimed at determining whether the observation of two functionally compatible artefacts, that is which potentially concur in achieving a specific function, automatically activates a motor programme of interaction between the two objects. To this purpose, an interference paradigm was used during which a...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3047-2
更新日期：2012-05-01 00:00:00
abstract：:Six cats were reared with surgically produced squint or atropinisation of one eye during the sensitive period of development. Five cats were reared without an ocular interference but in the same environment as the experimental cats. Four of these normally reared cats provided control data for perikaryal size. When the...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235784
更新日期：1982-01-01 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：:A medium-latency response (MLR) has been recorded from soleus during stance and walking, and has been attributed to stretch-evoked volleys in group II afferents. The present paper describes a MLR in soleus evoked by stimulating the deep peroneal nerve, documents its characteristics and addresses its likely origin. The...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1621-4
更新日期：2009-02-01 00:00:00
abstract：:The objectives of this study were to determine whether changes in electromyographic (EMG) responses observed during prolonged intracortical microstimulation (ICMS) were due to local plasticity of the motor system or to global changes in the preparation. Local effects would be expressed as changes only along the activa...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00242909
更新日期：1996-02-01 00:00:00
abstract：:The topography of commissural fibers of the prefrontal cortex was studied in the rhesus monkey using autoradiography. Commissural fibers originating in the medial prefrontal and the caudal orbital regions course through the anterior portion of the genu and the rostrum of the corpus callosum, while those from the arcua...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00240516
更新日期：1984-01-01 00:00:00
abstract：:A startling acoustic stimulus (SAS) could cause transient effects on the primary motor cortex and its descending tracts after habituation of reflex responses. In the literature, there is evidence that the effects of SAS depend on the status of M1 excitability and delivery time of SAS. In this study, we aimed to compre...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05569-0
更新日期：2019-08-01 00:00:00
abstract：:The stronger anatomo-functional connections of the supplementary motor area (SMA), as compared with premotor area (PM), with regions of the limbic system, suggest that SMA could play a role in the control of movements triggered by visual stimuli with emotional content. We addressed this issue by analysing the modifica...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1346-8
更新日期：2003-03-01 00:00:00
abstract：:1. The responses are described of cochlear nucleus neurons of anaesthetized cats as a function of time in dependence on intensity and frequency of tonal stimuli. Depending on spectral properties three types are distinguished in the group of spontaneously active units: A type (activation only) AS type (activation and s...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238021
更新日期：1975-10-24 00:00:00
abstract：:The use of arm weight support (WS) to optimize movement quality may be an avenue for improved upper limb stroke rehabilitation; however, the underlying neurophysiological effects of WS are not well understood. Rehabilitation exercises may be performed when sitting or standing, but the interaction of posture with WS ha...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4775-5
更新日期：2017-01-01 00:00:00
abstract：:Saccade characteristics in response to moving and stationary targets were studied in three monkeys (Macaca mulatta) that had been trained to look at a target, which after an initial jump either remained in place or moved forward or backward with constant velocity (10 degrees /s). Eye movements were recorded using a se...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-2070-3
更新日期：2005-02-01 00:00:00
abstract：:Eight right-handed subjects performed rhythmic isometric applications of torque in the directions of pronation and supination of the forearm, in single limb and bimanual conditions. Bimanual 'movements' were executed in either in-phase (homologous muscles simultaneously active) or anti-phase (non-homologous muscles ac...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00233046
更新日期：1995-01-01 00:00:00
abstract：:Our goal was to study potential substrates for cortical modulation of vestibular reflexes in the cat. In initial experiments, injections of wheat-germ-agglutinate-horseradish-peroxidase into Deiters' nucleus and the rostral descending nucleus revealed bilateral colonies of retrogradely filled neurons in cortical areas...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050651
更新日期：1999-03-01 00:00:00
abstract：:The review summarises current evidence on the cognitive mechanisms for the integration of spatial and temporal representations and of common brain structures to process the where and when of stimuli. Psychophysical experiments document the presence of spatially localised distortions of sub-second time intervals and su...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-009-1834-1
更新日期：2009-06-01 00:00:00
abstract：:We examined whether there are any adaptive effects on the pursuit initiation after a prolonged exposure to moving visual stimuli. The eye movements of six human subjects were recorded with the scleral search-coil technique or a Dual Purkinje Image Eye-tracker system. A random-dot image appeared on a CRT monitor and mo...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0563-y
更新日期：2006-11-01 00:00:00
abstract：:Increased afferent input may alter receptive field sizes, properties and somatotopographic representation in the cortex. Changes in the motor thalamus may also occur as a result of altered afferent input. Such plasticity has been implicated in both sensory and movement disorders. Using tremor as a model of augmented a...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1399-3
更新日期：2003-05-01 00:00:00
abstract：:The evidence on the impact of subthalamic nucleus deep brain stimulation (STN-DBS) on action restraint on Go/NoGO reaction time (RT) tasks in Parkinson's disease (PD) is inconsistent; with some studies reporting no effect and others finding that STN stimulation interferes with withholding of responses and results in m...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4531-2
更新日期：2016-04-01 00:00:00
abstract：:We employed binocular magnetic search coils to study the vestibulo-ocular reflex (VOR) and visually enhanced vestibulo-ocular reflex (VVOR) of 15 human subjects undergoing passive, whole-body rotations about a vertical (yaw) axis delivered as a series of pseudorandom transients and sinusoidal oscillations at frequenci...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/pl00005639
更新日期：1997-04-01 00:00:00
abstract：:This study aimed to examine the effect of explicit cuing on reactive stepping with the paretic limb during slip-like perturbations in stroke survivors and to identify differences in postural stability and fall-risk while stepping with either limb. Eleven chronic hemiparetic stroke survivors received slip-like stance p...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4367-9
更新日期：2015-11-01 00:00:00
abstract：:The superior colliculus was bilaterally or unilaterally ablated at different early postnatal ages in rats. When adult, each rat received a unilateral eye injection of Horseradish peroxidase to reveal the crossed and uncrossed retinal terminal fields within the dorsal lateral geniculate nucleus. Collicular ablation in ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230917
更新日期：1985-01-01 00:00:00
abstract：:The aim of this study was to investigate the effect of single joint displacement on the pattern of leg muscle electromyographic (EMG) activity during locomotion. For the first time, unilateral rotational hip or knee joint displacements were applied by a driven orthotic device at three phases of swing during locomotion...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1904-3
更新日期：2004-10-01 00:00:00
abstract：:The firing rate of an abducens motoneuron (AbMN) is linearly related to eye position with slope K, above recruitment threshold theta. Within the AbMN population K increases as theta increases. It is possible that these properties depend on the synaptic drives generated by the major premotor inputs to AbMNs, namely pos...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1176-8
更新日期：2002-09-01 00:00:00
abstract：:Since the moment arms for the elbow-flexor muscles are longest at intermediate positions of the elbow and shorter at the extremes of the range of motion, it was expected that the elbow torque would also show a peak at an intermediate angle provided the activity of the flexor muscles remained constant. We measured the ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
