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+ concentrations of 130-150 mmol/l caused maximal formazan production. The GDH catalyzed sodium-dependent increase in formazan production is suggested to be a consequence of the sodium dependence of glutamate uptake in glutamatergic brain structures supplying the enzyme with substrate.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Wolf G,Schünzel G,Rothe Fdoi
10.1007/BF00236047subject
Has Abstractpub_date
1986-01-01 00:00:00pages
659-62issue
3eissn
0014-4819issn
1432-1106journal_volume
62pub_type
杂志文章abstract::After injection of S35-methionine into cervical and lumbar dorsal root ganglia in turtle, a primary afferent projection was demonstrated on to the cerebellum. Few, but consistent patches of silver grains were found within the granular layer suggesting mossy fiber terminations. The projection was mainly ipsilateral and...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF01208609
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abstract::For the vestibulo-ocular reflex (VOR) to function properly, namely to ensure a stable retinal image under all circumstances, it should be able to take into account varying eye positions in the orbit and varying orientations of the head with respect to the axis about which it is rotating. We tested this capability by q...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00238215
更新日期:1986-01-01 00:00:00
abstract::It has previously been shown that unilateral ablation of the whole auditory cortex in the cat disrupts the precedence effect, and also interferes with the ability of the normal animal to discriminate in the Y-maze between a single sound on one side and a double sound consisting of a signal on both left and right sides...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00237601
更新日期:1978-02-15 00:00:00
abstract::Using a declarative memory paradigm, the anatomical correlates of spatial location encoding and retrieval in the healthy human brain as reflected by BOLD fMRI were investigated. During encoding, subjects were instructed to view and keep in mind different locations of an object on a platform seen from different viewpoi...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-006-0408-8
更新日期:2006-09-01 00:00:00
abstract::Functional decline in locomotion is common among the elderly, and the prevalence of gait disorders increases with age. Recently, increasing interest has been focused on the influence of age-related decline in brain function and neurological disorders such as dementia and Alzheimer's disease on gait capacity. However, ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-008-1643-y
更新日期:2009-03-01 00:00:00
abstract::Perceived postural stability has been reported to decrease as sway area increases on firm surfaces. However, changes in perceived stability under increasingly challenging conditions (e.g., removal of sensory inputs) and the relationship with sway area are not well characterized. Moreover, whether perceived stability v...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-018-5458-1
更新日期:2019-03-01 00:00:00
abstract::We studied the potential contribution of postsynaptic mechanisms to the depression of reflex excitability which occurs immediately after a voluntary release from tonic muscle contraction. The excitability of the Soleus (Sol) motor pool was tested at rest and after voluntary muscle relaxation. In both cases the Sol H-r...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00230904
更新日期:1985-01-01 00:00:00
abstract::The ability of Huntington's disease patients to co-ordinate their two hands with and without external cueing was investigated. Twelve Huntington's disease patients and sex- and age-matched controls performed a bimanual cranking task at two speeds (0.5 Hz, 1.5 Hz) and phase relationships (in-phase, anti-phase), with an...
journal_title:Experimental brain research
pub_type: 杂志文章
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更新日期:2000-10-01 00:00:00
abstract::A simple model of the vestibuloocular reflex and the optokinetic system was used to simulate recent data on visual and vestibular responses of neurons in the vestibular nucleus. Contrary to a previous interpretation, the results support the hypothesis that the optokinetic and semicircular canal signals are combined si...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00237269
更新日期:1977-11-24 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::Recently, it has been reported that grasping with the left hand is more vulnerable to visual size illusions than grasping with the right hand. The present study investigated whether this increased sensitivity of the left hand for visual context extends to reaching. Left- and right-handed participants reached for targe...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-010-2214-6
更新日期:2010-05-01 00:00:00
abstract::In the original publication of the article, Fig. 3 is incorrect. ...
journal_title:Experimental brain research
pub_type: 杂志文章,已发布勘误
doi:10.1007/s00221-020-05838-3
更新日期:2020-09-01 00:00:00
abstract::The objective of this study was to investigate interhemispheric transcallosal connections between primary motor cortices noninvasively in awake human subjects. For this purpose, focal transcranial magnetic stimulation was performed on eight healthy, right-handed subjects and one patient with congenital collosal agenes...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00227944
更新日期:1996-12-01 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::Extracellular unit recording was employed to study the axonal properties and efferent projections of antidromically identified neurons in the olfactory peduncle (OP) region of a primitive eutherian macrosmatic mammal, the south american armadillo (Chaetophractus vellerosus). Of 72 cells which satisfied the criteria fo...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00340490
更新日期:1986-01-01 00:00:00
abstract::Saccadic latencies measured in response to a step-wise displacement of the target may be substantially reduced if a gap separates the offset of the initial fixation point and the onset of the peripheral target. According to Fischer and Ramsperger (1984) this paradigm provokes a bimodal latency distribution which consi...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00229892
更新日期:1992-01-01 00:00:00
abstract::The present study extends our previous findings in challenging the traditional interpretation of irregularities in the velocity profile of pointing movements as corrective submovements performed to improve accuracy of target achievement. The study is driven by a hypothesis that pointing includes at least two subtasks,...
journal_title:Experimental brain research
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journal_title:Experimental brain research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002210000673
更新日期:2001-04-01 00:00:00
abstract::Recent studies suggest that recreational use of cocaine is associated with significant impairments in the same cognitive control functions that are affected by chronic use. Here we tested whether recreational cocaine use can impact the emergence and resolution of response conflict in conflict-inducing tasks. Recreatio...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-013-3724-9
更新日期:2014-01-01 00:00:00
abstract::Effects of repetitive stimulation of the contralateral caudate nucleus on the static discharge and dynamic sensitivity of soleus muscle spindle primary and secondary endings were studied in cats anaesthetized with Halothane (Fluothane). By progressive increasing the depth of anaesthesia two different fusimotor effects...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:
更新日期:1975-01-01 00:00:00
abstract::How the CNS deals with the issue of motor redundancy remains a central question for motor control research. Here we investigate the means by which neuromuscular and biomechanical factors interact to resolve motor redundancy in rhythmic multijoint arm movements. We used a two-df motorized robot arm to manipulate the dy...
journal_title:Experimental brain research
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journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-004-1998-7
更新日期:2005-01-01 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
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更新日期:2016-06-01 00:00:00
abstract::The retinal positions of objects in the world change with each eye movement, but we seem to have little trouble keeping track of spatial information from one fixation to the next. We examined the role of attention in trans-saccadic localization by asking participants to localize targets while performing an attentional...
journal_title:Experimental brain research
pub_type: 杂志文章
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更新日期:2014-12-01 00:00:00
abstract::Postural reactions to disruptions of stance are rapid and automatic in both quadrupeds and bipeds. Current evidence suggests that these postural responses are generated by the central nervous system as patterns involving muscle synergies. This study attempted to test this hypothesis of a centrally generated postural m...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00237411
更新日期:1986-01-01 00:00:00
abstract::Though previous studies have suggested that the basal ganglia are necessarily involved in action imitation, their precise role is unclear. An important source of evidence concerns patients with Parkinson's disease (PD) who suffer basal ganglia impairments. Some studies report poor execution of observed meaningful (MF)...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-012-3300-8
更新日期:2013-01-01 00:00:00
abstract::The present study investigated age-related changes in the attentional demands associated with interlimb coordination involving upper and lower limbs performed at three different movement frequencies. Younger and older adults performed rhythmical, 180° out-of-phase flexion-extension movements of the knee and elbow with...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-013-3511-7
更新日期:2013-06-01 00:00:00
abstract::This study examined the variability in movement end points in a task in which human subjects reached to targets in different locations on a horizontal surface. The primary purpose was to determine whether patterns in the variable errors would reveal the nature and origin of the coordinate system in which the movements...
journal_title:Experimental brain research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00241415
更新日期:1994-01-01 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::This study addressed the anticonvulsant effects of repeated administration of phenytoin, carbamazepine, phenobarbital, valproate, and ethosuximide in kindled guinea-pigs in order to further substantiate this novel model of partial seizures for the screening of future anticonvulsant drugs. Behavioral toxic effects were...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-006-0716-z
更新日期:2007-03-01 00:00:00