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 MLR of soleus was recorded in healthy subjects and hemiplegic patients, following electrical stimulation of the deep peroneal nerve at the fibula at rest, during voluntary dorsiflexion, during plantar flexion, during external restraint to the ankle dorsiflexion movement, during limb cooling, during limb ischaemia and 1 h after the ingestion of tizanidine. The dorsiflexion movement of the foot was measured using an accelerometer. During cooling, ischaemia and after tizanidine, changes in the MLR were compared with changes in the soleus H reflex, Achilles tendon reflex and, during cooling, F waves of abductor hallucis. The MLR was facilitated by voluntary dorsiflexion, was suppressed during plantar flexion, disappeared when ankle movement was prevented, and was enhanced in patients with spastic hemiplegia. Cooling delayed the MLR significantly more than the Achilles tendon reflex and the abductor hallucis F wave. During ischaemia the response was significantly less affected than the Achilles tendon reflex and the soleus H reflex. Tizanidine suppressed the MLR, but not the soleus H and tendon reflexes. The latencies and the experiments using cooling, ischaemia and tizanidine implicate soleus group II afferents in the genesis of this response.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Uysal H,Larsson LE,Efendi H,Burke D,Ertekin Cdoi
10.1007/s00221-008-1621-4subject
Has Abstractpub_date
2009-02-01 00:00:00pages
275-86issue
2eissn
0014-4819issn
1432-1106journal_volume
193pub_type
杂志文章abstract::The main input of the lateral part of the cat's lateralis posterior-pulvinar complex (LP-P) comes from the primary visual cortex. We investigated the response properties of cells in area 17 projecting to the striate-recipient zone (LP1) of the cat's LP-P complex. The cells' receptive fields were stimulated with drifti...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00227105
更新日期:1993-01-01 00:00:00
abstract::In rat barrel cortex, evoked potentials (EPs) to vibrissa stimulation can be divided into two distinct classes according to the relative contribution of their principal components. Our experiments support the notion that these components can be attributed to activation of two pyramidal cell populations: supra- and inf...
journal_title:Experimental brain research
pub_type: 杂志文章,评审
doi:10.1007/s002210050552
更新日期:1998-11-01 00:00:00
abstract::The capacity to acquire motor skills through repeated practice of a sequence of movements underlies many everyday activities. Extensive research in humans has dealt with the importance of spatial and temporal factors on motor sequence learning, standing in contrast to the few studies available in animals, particularly...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-011-2839-0
更新日期:2011-10-01 00:00:00
abstract::Using near infrared spectroscopy and repetitive transcranial magnetic stimulation (rTMS), we studied interhemispheric interactions between bilateral motor and sensory cortices in humans. RTMS consisted of a triple-pulse burst (50 Hz) repeated every 200 m for 2 s (10 bursts, 30 pulses); one kind of theta burst TMS (TBS...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-007-0884-5
更新日期:2007-07-01 00:00:00
abstract::The organization of corticocortical connections in the representation of the forepaw in cat primary somatosensory cortex (SI) was studied following injections of various tracers into different cortical cytoarchitectonic areas. Small injections of horseradish peroxidase, wheat germ agglutinin-conjugated HRP, Phaseolus ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00227839
更新日期:1992-01-01 00:00:00
abstract::In 11 squirrel monkeys (Saimiri sciureus), the brain stem was systematically explored with electrical brain stimulation for sites affecting the acoustic structure of ongoing vocalization. Vocalization was elicited by electrical stimulation of different brain structures. A severe deterioration of the acoustical structu...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00229880
更新日期:1992-01-01 00:00:00
abstract::The dual visuomotor channel theory proposes that prehension consists of a Reach that transports the hand in relation to an object's extrinsic properties (e.g., location) and a Grasp that shapes the hand to an object's intrinsic properties (e.g., size and shape). In central vision, the Reach and the Grasp are integrate...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-014-3945-6
更新日期:2014-09-01 00:00:00
abstract::In walking cats decerebrated at the premammillary level, single neurone activity of Purkinje cells (P-cells) with long corticofugal axons was recorded in the cerebellar vermis. The P-cells (N = 145) were identified as they showed spontaneous simple and complex spikes and also antidromic activation from Deiters' nucleu...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00238886
更新日期:1981-01-01 00:00:00
abstract::Patients with Parkinson's disease (PD) commonly exhibit difficulties performing simultaneous tasks and levodopa has been shown to improve the performance of these movements to a greater extent than movements performed in isolation. The aim of this study was to compare the effects of acute unilateral pallidal lesions (...
journal_title:Experimental brain research
pub_type: 临床试验,杂志文章
doi:10.1007/s00221-002-1257-8
更新日期:2002-12-01 00:00:00
abstract::The hypoglossal nucleus (Mo12) contains motoneurons that innervate the tongue, while the motor trigeminal nucleus (Mo5) contains motoneurons that elevate or depress the mandible. Previous studies have revealed lateral and medial tegmental field neuronal afferents to the Mo12 adjacent to, but not within, the motor trig...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00227237
更新日期:1992-01-01 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
pub_type: 杂志文章
doi:10.1007/s00221-014-3991-0
更新日期:2014-10-01 00:00:00
abstract::The effect of the intermittency of visual information in the bimanual coordination of an isometric force coordination task was investigated as a function of criterion force level. Eight levels of visual information intermittency (.2-25.6 Hz) were used in blocked fashion at each force level. Participants were required ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-016-4606-8
更新日期:2016-07-01 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::Stimulation of the caudal raphe nuclei alters visceral functions. The caudal raphe nuclei project to the nucleus of the solitary tract, which receives the central terminations of vagal afferents and plays an important role in the central integration of autonomic activities. The caudal raphe nuclei also project to the ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00241358
更新日期:1995-01-01 00:00:00
abstract::The total number of granule cells in the dentate gyrus was estimated in 17 male rats, four each aged 30, 120, and 200 days, and five aged 365 days. There is a substantial 35-43% linear increase between 1 month and 1 year. Two parameters of the granular layer are involved in the numerical change. First, total granular ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00238626
更新日期:1982-01-01 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::After intracranial transection of the optic nerve in cats the retinal stump of the nerve was injected with HRP. Surviving retinal ganglion cells can be retrogradely labeled at least up to 15.5 months of postoperative survival. ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00261356
更新日期:1985-01-01 00:00:00
abstract::Sensitivity to binocular positional mismatch was evaluated in cat striate cortical neurones, for paired, dichoptically presented, moving sine-wave gratings whose interocular positional phase relationship was varied. Spatial frequency, orientation and velocity were optimized for each neurone. Binocular responses for ea...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00227086
更新日期:1991-01-01 00:00:00
abstract::The hand, one of the most versatile but mechanically redundant parts of the human body, suffers more and longer than other body parts after stroke. One of the rehabilitation paradigms, task-oriented rehabilitation, encourages motor repeatability, the ability to produce similar motor performance over repetitions throug...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-017-5074-5
更新日期:2017-12-01 00:00:00
abstract::The purpose of this study was to compare the asymmetric gait induced by unilateral spinal cord injury in chicks with asymmetric gaits of other bipeds and quadrupeds. After lateral hemisection of the left thoracic spinal cord, kinetic (ground reaction forces) and kinematic (distance and timing) data were recorded as ch...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s002210050515
更新日期:1998-10-01 00:00:00
abstract::The phenotypic effect of the weaver mutation in the ventral midbrain of homozygous mutants is associated with the progressive loss of dopaminergic neurons. To discover whether the number of mesencephalic dopaminergic cells is altered in weaver heterozygotes (wv/+), we studied mice between 20 and 365 days of age. We co...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF02454137
更新日期:1997-01-01 00:00:00
abstract::After partial (spared-root) or complete hindlimb deafferentation, locomotion and accurate limb placement during locomotion recover considerably. In the present study movement was studied during and after recovery to determine whether altered motor patterns could substitute for normal ones in the recovery of motor beha...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00248226
更新日期:1988-01-01 00:00:00
abstract::In the thalamic ventrobasal complex (VB) of the cat, effects of electrical stimulation of the pyramidal tract (PT) upon activities of 112 relay cells and 18 internuncial cells were examined. Single PT shocks to the cerebral peduncle elicited short-latency discharges in 31 relay cells (mean latency, 1.4 +/- 0.5 msec). ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00234770
更新日期:1975-03-27 00:00:00
abstract::The electrophysiological responses of 162 tectal cells to computer-generated visual stimuli were extracellularly recorded from 24 homing pigeons before and after injecting either lidocaine or N-methyl-D-aspartate (NMDA) into the nucleus isthmi pars magnocellularis (Imc) or the nucleus isthmi pars parvocellularis (Ipc)...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00231973
更新日期:1995-01-01 00:00:00
abstract::Wheat germ agglutinin-horseradish peroxidase (WGA-HRP) conjugate was injected into the lumbar or cervical spinal cord of adult cats in order to examine its usefulness as an anterograde tracer of long ascending spinal tracts. Heavily labeled fibers and terminal-like structures were found in restricted regions of the gr...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00237154
更新日期:1983-01-01 00:00:00
abstract::There is evidence that men experience more sexual arousal than women but also that women in mid-luteal phase experience more sexual arousal than women outside this phase. Recently, a few functional brain imaging studies have tackled the issue of gender differences as pertaining to reactions to erotica. The question of...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-006-0429-3
更新日期:2006-09-01 00:00:00
abstract::Several studies have shown that people can catch a ball even if it is visible only during part of its flight. Here, we examine how well they can do so. We measured the movements of a ball and of the hands of both the thrower and the catcher during one-handed underarm throwing and catching. The catcher's sight was occl...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-010-2421-1
更新日期:2010-10-01 00:00:00
abstract::Cell responses to complex visual patterns such as compositions of broad-band (non-monochromatic) colour areas are presented. Patterns were scanned over the receptive field, and cell response at each point was recorded. "Response patterns" were constructed which display the cell transform of the stimulus pattern. Parvo...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00239571
更新日期:1982-01-01 00:00:00
abstract::Previous studies have shown that the vestibular short-latency-evoked potential (VsEP) in response to the brief head acceleration stimulus is a compound action potential of neurons innervating the otolith organs. However, due to the lack of direct evidence, it is currently unclear whether the VsEP is primarily generate...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-013-3602-5
更新日期:2013-08-01 00:00:00
abstract::The distribution of anterogradely-labeled fibers and retrogradely-labeled cell bodies in the interpeduncular nucleus (IPN) was mapped after injections of wheat-germ agglutinin conjugated to horseradish peroxidase (WGA-HRP) into various structures of the basal forebrain in adult rats. WGA-HRP injections into the medial...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00279657
更新日期:1988-01-01 00:00:00