Coordination of grasping and walking in Parkinson's disease.

abstract：:The acuities of X-cells from the dorsal lateral geniculate nucleus (LGN) were measured in five cats raised with a convergent strabismus, surgically induced by tenotomy. The acuities of cells driven by the strabismic eye were not significantly different from the acuities of cells driven by the non-deviating eye over th...

journal_title：Experimental brain research

authors： Gillard-Crewther S,Crewther DP

更新日期：1988-01-01 00:00:00

abstract：:It has been repeatedly shown that precise finger force control declines with age. The tasks and evaluation parameters used to reveal age-related differences vary between studies. In order to examine effects of task characteristics, young adults (18-25 years) and late middle-aged adults (55-65 years) performed precisio...

journal_title：Experimental brain research

authors： Vieluf S,Godde B,Reuter EM,Voelcker-Rehage C

更新日期：2013-01-01 00:00:00

abstract：:Muscular fatigue, which reduces force output and position sense, often leads to increased sway and potential balance impairments. In contrast, visually-guided saccadic eye movements (saccades) can attenuate sway more than fixating gaze on an external target. The goals of this study were to determine whether the use of...

journal_title：Experimental brain research

authors： Yeomans MA,Nelson AG,MacLellan MJ,Hondzinski JM

更新日期：2018-12-01 00:00:00

abstract：:Previous evidence based on perceptual integration and arbitrary responses suggests extensive cross-modal links in attention across the various modalities. Attention typically shifts to a common location across the modalities, despite the vast differences in their initial coding of space. An issue that remains unclear ...

journal_title：Experimental brain research

authors： Patchay S,Haggard P,Castiello U

更新日期：2006-04-01 00:00:00

abstract：:In frogs, each lobe of the midbrain optic tectum receives two spatially aligned maps of binocular visual space, one through each eye. The map from the contralateral eye is the product of direct retinal input to the tectum, while that from the ipsilateral eye is mediated by a commissural system of connections that rela...

journal_title：Experimental brain research

authors： Keating MJ,Dawes EA,Grant S

更新日期：1992-01-01 00:00:00

abstract：:The primary vagal axons and terminals in the lateral descending trigeminal complex (dlv-DLV complex) in crotaline snakes were studied following HRP injections into the vagal nerve. Labeled fibers and terminals were found in the marginal neuropil, which was made up entirely of unmyelinated fibers, i.e., C fibers. The g...

journal_title：Experimental brain research

authors： Kishida R,Yoshimoto M,Kusunoki T,Goris RC,Terashima S

更新日期：1984-01-01 00:00:00

abstract：:Three experiments examined interactions between posture control in upright stance and a concurrent location memory task. Healthy young participants stood upright and memorized the locations of dots presented on a computer screen. In the retrieval phase, they indicated whether arrows presented on the screen would pass ...

journal_title：Experimental brain research

authors： Riley MA,Mitra S,Saunders N,Kiefer AW,Wallot S

更新日期：2012-03-01 00:00:00

abstract：:Insulin-like growth factor-1 (IGF-1) is an endogenous peptide transported across the blood brain barrier that is protective in several brain injury models, including an acute animal model of Parkinson's disease (PD). Motor deficits in PD are due largely to the progressive loss of nigrostriatal dopaminergic neurons. Th...

journal_title：Experimental brain research

authors： Ayadi AE,Zigmond MJ,Smith AD

更新日期：2016-07-01 00:00:00

abstract：:We studied the effects of fatigue, induced by a 60-s maximal isometric force production with the index finger, on multi-finger coordination and force production by the other fingers of the hand. Finger forces were measured during single- and multi-finger maximal voluntary force production (MVC) at two sites, the middl...

journal_title：Experimental brain research

authors： Danion F,Latash ML,Li ZM,Zatsiorsky VM

更新日期：2001-06-01 00:00:00

abstract：:In our study we examined, in the rabbit, the interactions between temperature regulation and the state of increased vigilance and emotional arousal induced by a Classical Aversive Conditioning Procedure. A Delay Conditioning Procedure was used. The Conditioned Stimulus (CS) was a 1350 Hz, 85 dB tone, the Unconditioned...

journal_title：Experimental brain research

authors： Franzini C,Lenzi P,Cianci T

更新日期：1981-01-01 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

authors： Sellaro R,Hommel B,Colzato LS

更新日期：2014-01-01 00:00:00

abstract：:The possibility that effects of fornix stimulation on units in the medial preoptic region (MPO) may be via an interposed neuron in the dorsal septum was investigated using electrophysiological techniques. We found a reciprocal monosynaptic linkage between the MPO and the dorsal, medial and fimbrial septal nuclei. When...

journal_title：Experimental brain research

authors： Hubbard JI,Sirett NE,Mills RG,Hyland BI

更新日期：1986-01-01 00:00:00

abstract：:We explored the action of digits during static prehension tasks involving one hand or two hands of one or two persons. Three hypotheses were tested: to prevent slippage of the object, grip force and safety margin (SM) would be largest in bimanual conditions, particularly involving two persons; the distribution of tang...

journal_title：Experimental brain research

authors： Gorniak SL,Zatsiorsky VM,Latash ML

更新日期：2009-03-01 00:00:00

abstract：:To investigate the topographic organization of nociceptive neurons in the caudal medullary reticular formation, the distribution of cells that exhibit c-fos expression was examined following a unilateral noxious facial stimulus: subcutaneous injection of formalin into the vibrissal pad of awake rats. Labelling for Fos...

journal_title：Experimental brain research

authors： Mineta Y,Eisenberg E,Strassman AM

更新日期：1995-01-01 00:00:00

abstract：:Microscopic illumination of two neighbouring photoreceptor cells within a single ommatidium induces a strong sequence-dependent response in a directionally selective, motion-sensitive neuron. The response is characterized by a strong facilitation in the preferred direction and a weaker inhibition in the reverse direct...

journal_title：Experimental brain research

authors： Riehle A,Franceschini N

更新日期：1984-01-01 00:00:00

abstract：:Human walking dynamics are typically framed in the context of mechanics and energetics rather than in the context of neuromuscular control. Dynamic walking principles describe one helpful theoretical approach to characterize efficient human walking mechanics over many steps. These principles do not, however, address h...

journal_title：Experimental brain research

authors： Toney ME,Chang YH

更新日期：2013-12-01 00:00:00

abstract：:Gait is recognized as a key item related to mental function. Anomalous gait in psychotic individuals has been described for the lower extremities, whereas irregularities for upper body dynamics are not described, explained or verified with unbiased methods. Reduced walking velocity and increased somatic tension define...

journal_title：Experimental brain research

authors： Stensdotter A,Pedersen N,Wanvik A,Öhberg F,Fløvig JC,Fors EA

更新日期：2012-09-01 00:00:00

abstract：:Selective attention is popularly assessed with colour Stroop tasks in which participants name the ink colour of colour words, whilst resisting interference from the natural tendency to read the words. Prior studies hinted that the key brain regions (dorsolateral prefrontal (dlPFC) and anterior cingulate cortex (ACC)) ...

journal_title：Experimental brain research

authors： Mitchell RL

更新日期：2010-05-01 00:00:00

abstract：:This paper reports on experiments in which the effect of disconnection of association fibres from Area 17/18 to the posterior suprasylvian cortex (PSSC) was investigated. In the control experiments, all neurons had large receptive fields in the central 5-10 degrees of the visual field without detailed retinotopy. In t...

journal_title：Experimental brain research

authors： Guedes R,Watanabe S,Creutzfeldt OD

更新日期：1983-01-01 00:00:00

abstract：:The present study was undertaken to investigate the effects of the alpha2 adrenergic agonist, clonidine, on the near complete cerebral ischemia (NCFI) evoked release of glutamate and aspartate from normo- and hyperglycemic rodent brain tissue using microdialysis tissue techniques. Hemodynamic variables, blood lactate,...

journal_title：Experimental brain research

authors： Jellish WS,Murdoch J,Kindel G,Zhang X,White FA

更新日期：2005-12-01 00:00:00

abstract：:1. The somatic location and axonal projections of inhibitory vestibular nucleus neurons activated by the horizontal semicircular canal nerve (HCN) were studied in anesthetized cats. Cats were anesthetized with ketamine hydrochloride and pentobarbital sodium. 2. Intracellular recordings were obtained from 11 neck exten...

journal_title：Experimental brain research

authors： Isu N,Sakuma A,Hiranuma K,Uchino H,Sasaki S,Imagawa M,Uchino Y

更新日期：1991-01-01 00:00:00

abstract：:We measured the amount of information transmitted by the direction of two-dimensional (2-D) arm movements of human subjects, and by neuronal populations in the motor cortex and area 5 of monkeys. We also compared the information transmitted by a motor cortical population when the predictability of the direction of mov...

journal_title：Experimental brain research

authors： Georgopoulos AP,Massey JT

更新日期：1988-01-01 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

authors： Adam JJ,Müskens R,Hoonhorst S,Pratt J,Fischer MH

更新日期：2010-05-01 00:00:00

abstract：:Previous studies have shown that the "synaptic" bodies of mammalian pinealocytes are a heterogeneous group of organelles. Whereas "synaptic" ribbons (SR) exhibit a day/night rhythm with small numbers during daytime and high numbers at night, the so-called "synaptic" spherules (SS) show species-specific differences in ...

journal_title：Experimental brain research

authors： Khaledpour C,Vollrath L

更新日期：1987-01-01 00:00:00

abstract：:In order to determine whether neurones in the parvicellular reticular formation are in direct synaptic contact with motoneurones innervating facial muscles, a combined retrograde and anterograde transport study was carried out in the rat. Animals received injections of the retrograde tracer cholera toxin B conjugated ...

journal_title：Experimental brain research

authors： Mogoseanu D,Smith AD,Bolam JP

更新日期：1994-01-01 00:00:00

abstract：:Repetitive finger tapping is a well-established clinical test for the evaluation of parkinsonian bradykinesia, but few studies have investigated other finger movement modalities. We compared the kinematic changes (movement rate and amplitude) and response to levodopa during a conventional index finger-thumb-tapping ta...

journal_title：Experimental brain research

authors： Teo WP,Rodrigues JP,Mastaglia FL,Thickbroom GW

更新日期：2013-06-01 00:00:00

abstract：:We describe the simple-spike activity of Purkinje cells (P cells) in the ventral paraflocculus (VPFL) of behaving monkeys in association with movements of the visual scene that evoke short-latency ocular following responses. One group of P cells discharged maximally for downward motion, and the other for motion toward...

journal_title：Experimental brain research

authors： Shidara M,Kawano K

更新日期：1993-01-01 00:00:00

abstract：:The photothrombotic ring stroke model with sustained underperfusion followed by late spontaneous reperfusion (Gu et al. 1999) was employed to study its morphological consequences. The exposed crania of adult male Wistar rats were subjected to a ring-shaped laser irradiation beam simultaneously with intravenous erythro...

journal_title：Experimental brain research

authors： Gu WG,Brännström T,Jiang W,Wester P

更新日期：1999-03-01 00:00:00

abstract：:Attention to sensory stimulation modulates behavioural responses and cortical activity. Attention to movement can also modulate motor responses. For example, directing attention away from cued movements can increase reaction times. This study used fMRI to determine where in the motor cortex attention to movement modul...

journal_title：Experimental brain research

authors： Johansen-Berg H,Matthews PM

更新日期：2002-01-01 00:00:00

abstract：:Gamma band activity participates in sensory perception, problem solving, and memory. This review considers recent evidence showing that cells in the reticular activating system (RAS) exhibit gamma band activity, and describes the intrinsic membrane properties behind such manifestation. Specifically, we discuss how cel...

journal_title：Experimental brain research

authors： Garcia-Rill E,Kezunovic N,D'Onofrio S,Luster B,Hyde J,Bisagno V,Urbano FJ

更新日期：2014-05-01 00:00:00