Abstract：
:The fast-twitch flexor digitorum longus (FDL) muscle was partially denervated by a unilateral section of the L7 ventral root. After approximately 100 days the isometric, force-velocity and histochemical properties of single motor units from the partially denervated muscle were determined. The diameter of the nerve axons supplying the muscle were also examined. The extrapolated maximum speed of sarcomere shortening (Vmax) of the enlarged motor units was significantly less than that of the control whole muscle Vmax. It is concluded that the motoneurone is capable of expanding its territory and therefore its tension generating capability without any apparent change in axonal diameter. In addition, the intrinsic properties of the muscle fibres are altered.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Hatcher DD,Luff AR,Westerman RA,Finkelstein DIdoi
10.1007/BF00236946subject
Has Abstractpub_date
1985-01-01 00:00:00pages
590-3issue
3eissn
0014-4819issn
1432-1106journal_volume
60pub_type
杂志文章abstract：:Previous work has shown that motoneurone excitability is enhanced by a hyperpolarization of the membrane potential at which an action potential is initiated (V(th)) at the onset, and throughout brainstem-evoked fictive locomotion in the adult decerebrate cat and neonatal rat. Modeling work has suggested the modulation...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2994-3
更新日期：2012-03-01 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 acute and subacute effects of intracerebroventricularly (ICV) administered nerve growth factor (NGF) or brain-derived neurotrophic factor (BDNF) on locomotor activity were evaluated in awake adult rats. Immediately after ICV injection through an implanted cannula, locomotor activity was measured by a computerized ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/pl00005759
更新日期：1997-09-01 00:00:00
abstract：:Neurostimulation, e.g., transcranial direct current stimulation (tDCS), shows promise as an effective cognitive intervention. In spite of low spatial resolution, limited penetration, and temporary influence, evidence highlights tDCS-linked cognitive benefits in a range of cognitive domains. The left posterior parietal...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-014-4090-y
更新日期：2014-12-01 00:00:00
abstract：:The aim of this research was to analyse the development of postural reactions to approaching (AOF) and receding (ROF) ground rectilinear optical flows. Optical flows were shaped by a pattern of circular spots of light projected on the ground surface by a texture flow generator. The geometrical structure of the project...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1930-1
更新日期：2004-11-01 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：:The effects of electrical stimulation of the cerebral cortex on the monosynaptic jaw closing and the disynaptic jaw opening reflexes were studied in cats anaesthetized with chloralose. The time course of the reflex effects was recorded. Similar rhythmic sequences of facilitation and inhibition were observed in both re...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237546
更新日期：1980-01-01 00:00:00
abstract：:Middle cerebral artery occlusion (MCAO) models have become well established as the most suitable way to simulate stroke in experimental studies. The high variability in the size of the resulting infarct due to filament composition, rodent strain and vessel anatomy makes the setup of such models very complex. Beside co...
journal_title：Experimental brain research
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00221-012-3296-0
更新日期：2013-01-01 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
pub_type： 杂志文章
doi：10.1007/s00221-003-1772-2
更新日期：2004-05-01 00:00:00
abstract：:In one of the most-widely used species in pineal gland research, the strongly photoperiodic golden hamster, Mesocricetus auratus, no electrophysiological data on pinealocytes are currently available. To fill this gap, in the present study 185 spontaneously active pinealocytes from male golden hamsters were recorded ex...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00269449
更新日期：1987-01-01 00:00:00
abstract：:In convergent strabismus (esotropia) the spatial asynchrony of the two eye inputs unbalances the interocular interactions, leading to the functional advantage of the nondeviated eye and the inhibition of the esotropic eye. It may be argued that the strabismic suppression, if it is the effect of inhibitory interactions...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1190-x
更新日期：2002-11-01 00:00:00
abstract：:The purpose of this study was to investigate the relationship between EEG-derived motor activity-related cortical potential (MRCP) and voluntary muscle activation. Eight healthy volunteers participated in two experimental sessions. In one session, subjects performed isometric elbow-flexion contractions at four intensi...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210000382
更新日期：2000-08-01 00:00:00
abstract：:Two-shock inhibition, a feature of 98 of 100 P cells recorded in the dorsal lateral geniculate nucleus of the normal rat, was not observed in 91 of 140 geniculate cells after an electrolytic lesion had been made in the adjacent visually responsive thalamic reticular nucleus. Nine geniculate cells recorded both before ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237834
更新日期：1985-01-01 00:00:00
abstract：:The representation of the two eyes in striate cortex (V1) of Cebus monkeys was studied by electrophysiological single-unit recordings in normal animals and by morphometric analysis of the pattern of ocular dominance (OD) stripes, as revealed by cytochrome oxidase histochemistry in V1 flat-mounts of enucleated animals....
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF02259100
更新日期：1992-01-01 00:00:00
abstract：:Optimality criteria underlying organization of arm movements are often validated by testing their ability to adequately predict hand trajectories. However, kinematic redundancy of the arm allows production of the same hand trajectory through different joint coordination patterns. We therefore consider movement optimal...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-016-4610-z
更新日期：2016-06-01 00:00:00
abstract：:The current study examined whether the amount and location of available movement information influenced the stability of visuomotor coordination. Participants coordinated a handheld pendulum with an oscillating visual stimulus in an inphase and antiphase manner. The effects of occluding different amounts of phase at d...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1982-3
更新日期：2012-09-01 00:00:00
abstract：:Observations of neurons in dorsal horn laminae IV-VI of the lumbosacral segments of Golgi-stained spinal cords in kittens and adult cats revealed laminar differences in dendritic architecture. Many neurons in lamina IV had dense, bushy dendritic fields. Lamina V contained, in addition to bushy cells similar in appeara...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237093
更新日期：1977-05-23 00:00:00
abstract：:There are a number of studies concerning difference of postural control following left or right hemisphere lesions. Few studies, however, compare the role of the right and left hemisphere in learning new postural tasks. This study aimed to address this question. Twenty patients with hemiparesis after ischemic stroke i...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-2091-z
更新日期：2010-04-01 00:00:00
abstract：:In earlier studies the tetrahydroisoquinoline derivative N-methyl-norsalsolinol (2-MDTIQ) was discovered in lumbar cerebrospinal fluid and brain of patients with Parkinson's disease. To establish whether 2-MDTIQ is toxic to the dopaminergic system, 2-MDTIQ or 6-hydroxydopamine (6-OHDA) were stereotactically injected i...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227181
更新日期：1996-11-01 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：:Could task performance be constrained by our ability to fully engage necessary neural processing through effort of will? The StartReact phenomenon suggests that this might be the case, as voluntary reaction times are substantially reduced by loud sounds. Here, we show that loud auditory stimulation can also be associa...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2474-1
更新日期：2011-01-01 00:00:00
abstract：:We have reported previously that intracranial application of near-infrared light (NIr) reduces clinical signs and offers neuroprotection in a subacute MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) monkey model of Parkinson's disease. In this study, we explored whether NIr reduces the gliosis in this animal model...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4720-7
更新日期：2016-11-01 00:00:00
abstract：:According to the size principle for motoneurons one would expect that an excitatory stimulus given to a motoneuronal pool should evoke small excitatory postsynaptic potentials (EPSPs) in large and large EPSPs in small motoneurons of the pool. In this study this expectation was tested for the motoneuron pool of the fir...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229117
更新日期：1994-01-01 00:00:00
abstract：:Our objective was to determine if caudal ventral respiratory group (VRG) expiratory (E) neurons that drive abdominal expiratory motoneurons in the lumbar cord respond to intercostal and lumbar nerve afferent stimulation. Results showed that 92% of medullary E-neurons that were antidromically activated from the upper l...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230702
更新日期：1989-01-01 00:00:00
abstract：:The static ocular torsional position of both eyes of 23 patients was measured by means of fundus photographs one day before and one week after unilateral vestibular neurectomy for the treatment of acoustic neuroma, Ménière's disease or paroxysmal vertigo. The results showed that in all patients the vestibular neurecto...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230003
更新日期：1991-01-01 00:00:00
abstract：:In humans, studies of back muscle activity have mainly addressed the functioning of lumbar muscles during postural adjustments or rhythmic activity, including locomotor tasks. The present study investigated how back muscles are activated along the spine during rhythmical activities in order to gain insights into spina...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-1146-2
更新日期：2008-02-01 00:00:00
abstract：:The aim of this study was to examine the post-exercise effects of fatiguing the wrist extensor muscles of a single arm on postural tremor and muscle activity in both arms. Previous research has shown that, for neurologically normal subjects, the tremor seen within a single limb segment is uncorrelated to that seen con...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s00221-005-0050-x
更新日期：2005-12-01 00:00:00
abstract：:Single neurons in the inferior colliculus of the Greater Horseshoe bat, Rhinolophus ferrumequinum, showed two broad categories of response patterns to sinusoidally frequency (SFM) or amplitude (SAM) modulated stimuli. Tonic responding cells (best excitatory frequency (BEF) between 10 and 90 kHz) showed a rough sinusoi...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238345
更新日期：1979-01-02 00:00:00
abstract：:We studied intermanual motor transfer for right-to-left or left-to-right direction of transfer between either proximal or distal upper extremity muscle groups. The influence of previously acquired motor engrams (original learning, OL) on learning efficiency of the contralateral side (transfer learning, TL) was examine...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/BF00228105
更新日期：1996-03-01 00:00:00
abstract：:Extracellular recordings were made from neurones in the ventromedial and parafasicular nuclei of the rat thalamus, many of which had demonstrable capsular or caudate projections. These cells responded to electrical stimulation of the ipsilateral substantia nigra with a short latency (4 ms) inhibition presumed to be mo...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236662
更新日期：1980-01-01 00:00:00
