Conceptual unifying constraints override sensorimotor interference during anticipatory control of bimanual actions.

abstract：:The uptake of L-glutamate was studied in astrocytes cultured from different brain areas of newborn rats as well as in two different cultures of neurons obtained from mouse brain. Both astrocytes and neurons exhibited high-affinity glutamate uptake with Km values ranging from 34 microM to 82 microM. Vmax values for ast...

journal_title：Experimental brain research

authors： Drejer J,Larsson OM,Schousboe A

更新日期：1982-01-01 00:00:00

abstract：:To view different objects of interest, primates use fast, accurate eye movements called saccades. If saccades become inaccurate, the brain adjusts their amplitudes so they again land on target, a process known as saccade adaptation. The different types of saccades elicited in different behavioral circumstances appear ...

journal_title：Experimental brain research

authors： Hopp JJ,Fuchs AF

更新日期：2010-04-01 00:00:00

abstract：:Fast goal-directed voluntary movements of the human upper extremity are known to be associated with three distinct bursts of EMG activity in antagonistic muscles. The role of each burst (AG1, ANT, AG2) in controlling motion is not fully understood, largely because overall limb response is a complex function of the ent...

journal_title：Experimental brain research

authors： Wierzbicka MM,Wiegner AW,Shahani BT

更新日期：1986-01-01 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

authors： Runnalls KD,Anson G,Byblow WD

更新日期：2017-01-01 00:00:00

abstract：:Postural instability evokes cortical and autonomic reactions in addition to the primary compensatory response, and it is hypothesized that these responses may be related to underlying affective influences such as tonic physiological arousal. The purpose of this study was to determine whether perturbation-evoked cortic...

journal_title：Experimental brain research

authors： Sibley KM,Mochizuki G,Frank JS,McIlroy WE

更新日期：2010-06-01 00:00:00

abstract：:The survival of grafts of dissociated allogeneic fetal neural dopamine (DA) rich tissue in the striatum has been studied after transplantation between inbred strains of mice differing at defined immunogenetical loci between donor and recipient. Six to 7 weeks and 15 weeks after grafting, surviving grafted DA neurons w...

journal_title：Experimental brain research

authors： Widner H,Brundin P,Björklund A,Möller E

更新日期：1989-01-01 00:00:00

abstract：:Movement sequences such as typing or tapping display important interactions among finger movements arising from anticipatory motion (preparing for upcoming events) and coupling (non-independence among fingers). We examined pianists' finger tapping for the influence of cognitive chunking processes and biomechanical cou...

journal_title：Experimental brain research

authors： Loehr JD,Palmer C

更新日期：2007-04-01 00:00:00

abstract：:In situ hybridization was used to study the expression of prepro-neuropeptide Y (NPY), preprosomatostatin (SOM), preprotachykinin (PPT) and preprocholecystokinin (CCK) mRNA in caudate-putamen and frontoparietal cortex of rat brain with unilateral lesion of midbrain dopamine neurons. Neurons expressing NPY and SOM mRNA...

journal_title：Experimental brain research

authors： Lindefors N,Brené S,Herrera-Marschitz M,Persson H

更新日期：1990-01-01 00:00:00

abstract：:Size constancy is the ability to perceive objects as remaining constant in size regardless of their distance from the observer. Emmert's law demonstrates that viewing distance determines the perceived size of afterimages according to the amount of depth cues that are available. Using an afterimage paradigm, we examine...

journal_title：Experimental brain research

authors： Millard AS,Sperandio I,Chouinard PA

更新日期：2020-04-01 00:00:00

abstract：:The purpose of the study was to determine whether characteristics of a motor action affect anticipatory postural adjustments (APAs). Standing subjects held a load between their hands with arms extended in front of their body. Next, subjects performed bilateral shoulder abduction movements (motor action) of three ampli...

journal_title：Experimental brain research

authors： Shiratori T,Aruin A

更新日期：2007-04-01 00:00:00

abstract：:We investigated how lateralized choices of hand and target are influenced by previous behavior. Three monkeys retrieved food pellets following cues indicating the location of available food pellet targets, and the hand that could be used to acquire a target. In pseudo-randomized trials, the monkeys could retrieve food...

journal_title：Experimental brain research

authors： Lee D,Schieber MH

更新日期：2006-10-01 00:00:00

abstract：:We investigated the effect of spatial uncertainty on motor planning by using the cueing method in a reaching task (experiment 1). Discrete spatial cues indicated the different locations in which the target could be presented. The number of cues as well as their direction changed from trial to trial. We tested the adeq...

journal_title：Experimental brain research

authors： Pellizzer G,Hedges JH

更新日期：2003-06-01 00:00:00

abstract：:A method is described for localized microapplication of drugs into nervous tissue of freely moving rats. Fairly constant release of material was observed over a period of more than three weeks. The amount of substance released was small because the rate of release was determined largely by diffusion rather than by mas...

journal_title：Experimental brain research

authors： Dames W,Joó F,Wolff JR

更新日期：1979-07-02 00:00:00

abstract：:A total of ten alpha motor axons which innervated the peroneus brevis muscle were isolated in two cynomolgus monkeys. In each experiment, the isolated alpha axons were stimulated collectively to deplete glycogen from their muscle units. The muscle was then frozen quickly , cut serially, and stained for glycogen. Of th...

journal_title：Experimental brain research

authors： Murthy KS,Letbetter WD,Eidelberg E,Cameron WE,Petit J

更新日期：1982-01-01 00:00:00

abstract：:Eight rhesus monkeys (Macaca mulatta) were trained to detect an instantaneous lateral displacement of a small spot of light. The smallest movement for 79% correct performance was then determined. Severing the splenium of the corpus callosum, which has to be done to reveal the superior colliculi, had no effect on the m...

journal_title：Experimental brain research

authors： Cowey A,Smith B,Butter CM

更新日期：1984-01-01 00:00:00

abstract：:Cultured rat hippocampal neurons with short processes were investigated using the whole cell voltage clamp under conditions appropriate for isolating Na+ currents. After incubation of the neuron culture for a period of 15-30 min in 1 mM sodium valproate, several parameters of the Na+ current were changed. The peak Na+...

journal_title：Experimental brain research

authors： Van den Berg RJ,Kok P,Voskuyl RA

更新日期：1993-01-01 00:00:00

abstract：:Evidence is presented that simple cells in the cat striate cortex (area 17) fail to respond to two dimensional random patterns but respond vigorously to one dimensional patterns with identical power at the preferred orientation of the cell. Further observations suggest that complex cells inhibit simple cells so as to ...

journal_title：Experimental brain research

authors： Burr D,Morrone C,Maffei L

更新日期：1981-01-01 00:00:00

abstract：:It has been argued that through a process of internal 'simulation', we automatically map observed actions directly onto our motor system to facilitate imitation. Instead, here we show that observed actions influence the kinematic parameters of manual responses in a dynamic, context-dependent fashion. Participants obse...

journal_title：Experimental brain research

authors： Ocampo B,Kritikos A

更新日期：2010-04-01 00:00:00

abstract：:By measuring the forces applied by each limb supporting the weight of the standing quadruped (cat), before and during elicitation of the placing reaction, it was possible to examine quantitatively and qualitatively the postural events which preceded and accompanied forelimb displacement. The findings are summarized as...

journal_title：Experimental brain research

authors： Coulmance M,Gahéry Y,Massion J,Swett JE

更新日期：1979-10-01 00:00:00

abstract：:Dopamine and somatostatin-14 (SRIF) were incubated with a membrane fraction of rat caudate-putamen (CP) tissue in an adenylate cyclase assay in order to examine the D-1-receptor coupled adenylate cyclase activity 5 days and 3 weeks after unilateral ablation of the left frontal and lateral cortex. Five days after decor...

journal_title：Experimental brain research

authors： Moser A,Reavill C,Liebetrau A,Jenner P,Marsden CD,Cramer H

更新日期：1987-01-01 00:00:00

abstract：:After injection of 3H dihydrotestosterone, concentration and retention of radioactivity occur in nuclei of certain neurons in the spinal cord and spinal ganglia as well as in dorsal and ventral root cells of chick embryos at day 10, 12, and 18. Cell of the glycogen body show nuclear labeling at day 12, but not at day ...

journal_title：Experimental brain research

authors： Reid FA,Gasc JM,Stumpf WE,Sar M

更新日期：1981-01-01 00:00:00

abstract：:Neurons in the caudal portions of the medial and descending vestibular nuclei and in vestibular cell group f that project to the cervical or lumbar spinal cord were located by antidromic spinal stimulation. These caudal vestibulospinal tract (CVST) neurons have a median conduction velocity of 12 m/sec, which is well b...

journal_title：Experimental brain research

authors： Peterson BW,Maunz RA,Fukushima K

更新日期：1978-06-19 00:00:00

abstract：:Delay eyeblink conditioning was examined in patients with genetically-defined heredoataxias and age-matched control subjects. 24 patients with spinocerebellar ataxia type 6 (SCA6), type 3 (SCA3), and Friedreich's ataxia (FRDA) participated. SCA6 affects primarily the cerebellum, whereas extracerebellar involvement is ...

journal_title：Experimental brain research

authors： Timmann D,Gerwig M,Frings M,Maschke M,Kolb FP

更新日期：2005-04-01 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

authors： Johnson KA,Bennett JE,Georgiou N,Bradshaw JL,Chiu E,Cunnington R,Iansek R

更新日期：2000-10-01 00:00:00

abstract：:It is known that arbitrary target accelerations along the horizontal generally are extrapolated much less accurately than target speed through a visual occlusion. The extent to which vertical accelerations can be extrapolated through an occlusion is much less understood. Here, we presented a virtual target rapidly des...

journal_title：Experimental brain research

authors： Zago M,Iosa M,Maffei V,Lacquaniti F

更新日期：2010-03-01 00:00:00

abstract：:Standing and walking are very different tasks. It might be reasonable, therefore, to assume that the mechanisms used to maintain the stability of standing and walking should be quite different. However, many studies have shown that postural stability measures can generally predict risk of falls, even though most falls...

journal_title：Experimental brain research

authors： Kang HG,Dingwell JB

更新日期：2006-06-01 00:00:00

abstract：:The human soleus H-reflex is commonly tested as an indicator of the reflex excitability of the calf muscles with infrequent stimuli to a subject seated and at rest. However, the reflex varies widely with the level of voluntary contraction and with the time history of stimulation. We studied two aspects of this variati...

journal_title：Experimental brain research

authors： Stein RB,Estabrooks KL,McGie S,Roth MJ,Jones KE

更新日期：2007-09-01 00:00:00

abstract：:The visual responses of postarcuate neurons have been studied in alert behaving monkeys (Macaca nemestrina). In particular, the effect of eye position on the location of visual responses in respect to the body has been examined. It was found that a large percentage of bimodal (visual and somatosensory) neurons have vi...

journal_title：Experimental brain research

authors： Gentilucci M,Scandolara C,Pigarev IN,Rizzolatti G

更新日期：1983-01-01 00:00:00

abstract：:A Fitts' task was used to examine whether the large movement asymmetry in subjects with spastic hemiparesis can be reduced or eliminated when both limbs are required to perform functionally equivalent tasks. Furthermore, it was determined whether any such benefit was expressed as mutual accommodation, or whether one h...

journal_title：Experimental brain research

authors： Steenbergen B,Hulstijn W,de Vries A,Berger M

更新日期：1996-06-01 00:00:00

abstract：:Theta burst stimulation (TBS) is a special repetitive transcranial magnetic stimulation (rTMS) paradigm, where bursts of low-intensity stimuli are applied in the theta frequency. The aim of this study was to investigate the effect of neuronavigated TBS over primary somatosensory cortex (SI) on laser-evoked potentials ...

journal_title：Experimental brain research

authors： Poreisz C,Antal A,Boros K,Brepohl N,Csifcsák G,Paulus W

更新日期：2008-03-01 00:00:00