Postural responses and spatial orientation to neck proprioceptive and vestibular inputs during locomotion in young and older adults.

abstract：:Spatial orientation is crucial when subjects have to accurately reach memorized visual targets. In previous studies modified gravitoinertial force fields were used to affect the accuracy of pointing movements in complete darkness without visual feedback of the moving limb. Target mislocalization was put forward as one...

journal_title：Experimental brain research

authors： Prieur JM,Bourdin C,Vercher JL,Sarès F,Blouin J,Gauthier GM

更新日期：2005-03-01 00:00:00

abstract：:Grasping using two forelimbs in opposition to one another is evolutionary older than the hand with an opposable thumb (Whishaw and Coles in Behav Brain Res 77:135-148, 1996); yet, the mechanisms for bimanual grasps remain unclear. Similar to unimanual grasping, the localization of matching stable grasp points on an ob...

journal_title：Experimental brain research

authors： Le A,Niemeier M

更新日期：2013-10-01 00:00:00

abstract：:Previous work has shown that motor learning is associated with changes to both movements and to the somatosensory perception of limb position. In an earlier study that motivates the current work, it appeared that following washout trials, movements did not return to baseline but rather were aligned with associated cha...

journal_title：Experimental brain research

authors： Ohashi H,Valle-Mena R,Gribble PL,Ostry DJ

更新日期：2019-05-01 00:00:00

abstract：:In this study, transcranial magnetic stimulation (TMS) of the primary motor hand area was used to test cortical excitability in Parkinson's disease (PD) patients. Motor evoked potentials (MEPs) to TMS were studied at rest by utilising distinct paired-pulse TMS protocols. Out of 29 untreated PD patients and 29 healthy ...

journal_title：Experimental brain research

authors： Pierantozzi M,Palmieri MG,Marciani MG,Bernardi G,Giacomini P,Stanzione P

更新日期：2001-11-01 00:00:00

abstract：:Besides luminance change, the pupil responds to changes in spatial pattern, color content and target motion. Our experimental results show that transient pupillary constriction can also be elicited by dichoptically viewing a change in stereoscopic stimuli composed of dynamic random-dot stereograms from an initially fl...

journal_title：Experimental brain research

authors： Li Z,Sun F

更新日期：2005-01-01 00:00:00

abstract：:Corticomotor control of the human tongue has been reported to undergo neuroplastic changes following several days of training in a tongue-protrusion task. The aims of the present study were to determine if a 1 h tongue-task training is sufficient to induce signs of neuroplastic changes in the corticomotor pathways, an...

journal_title：Experimental brain research

authors： Svensson P,Romaniello A,Wang K,Arendt-Nielsen L,Sessle BJ

更新日期：2006-08-01 00:00:00

abstract：:Nerve cell bodies located within the white matter of the dorsal funiculus (DF neurons) have been previously observed but not described in detail. The present study examines the morphology, ontogeny, and projection of DF neurons utilizing Fluoro-Gold as a retrograde tracer, alone, and in combination with tritiated thym...

journal_title：Experimental brain research

authors： Beal JA,Knight DS,Nandi KN

更新日期：1990-01-01 00:00:00

abstract：:Anatomical studies in several species have demonstrated a pallidostriatal pathway. We employed electrophysiological and anatomical methods to distinguish the neurones of this pathway from the two pallidocortical groups reported in the rat. Injection of fluorescent retrograde tracers, combined with immunohistochemistry...

journal_title：Experimental brain research

authors： Walker RH,Arbuthnott GW,Wright AK

更新日期：1989-01-01 00:00:00

abstract：:Owing to the flexibility and redundancy of neuromuscular and skeletal systems, humans can trace the same hand trajectory in space with various arm configurations. However, the joint trajectories of typical unrestrained movements tend to be consistent both within and across subjects. In this paper we propose a method t...

journal_title：Experimental brain research

authors： Kang T,He J,Tillery SI

更新日期：2005-12-01 00:00:00

abstract：:The aim of this study was to examine effects of different types of task constraints on coupling of perception and action in people with chronic stroke when crossing obstacles during a walking task. Ten participants with hemiplegic chronic stroke volunteered to walk over a static obstacle under two distinct task constr...

journal_title：Experimental brain research

authors： Shafizadeh M,Wheat J,Davids K,Ansari NN,Ali A,Garmabi S

更新日期：2017-06-01 00:00:00

abstract：:Our goal was to study potential substrates for cortical modulation of vestibular reflexes in the cat. In initial experiments, injections of wheat-germ-agglutinate-horseradish-peroxidase into Deiters' nucleus and the rostral descending nucleus revealed bilateral colonies of retrogradely filled neurons in cortical areas...

journal_title：Experimental brain research

authors： Wilson VJ,Zarzecki P,Schor RH,Isu N,Rose PK,Sato H,Thomson DB,Umezaki T

更新日期：1999-03-01 00:00:00

abstract：:Increased afferent input may alter receptive field sizes, properties and somatotopographic representation in the cortex. Changes in the motor thalamus may also occur as a result of altered afferent input. Such plasticity has been implicated in both sensory and movement disorders. Using tremor as a model of augmented a...

journal_title：Experimental brain research

authors： Kiss ZH,Davis KD,Tasker RR,Lozano AM,Hu B,Dostrovsky JO

更新日期：2003-05-01 00:00:00

abstract：:Transient receptor potential receptors (TRP) on primary afferent neurons respond to noxious and/or thermal stimuli. TRPV1 receptors can be activated by noxious heat, acid, capsaicin and resiniferatoxin, leading to burning pain or itch mediated by discharges in C polymodal and Adelta mechano-heat nociceptors and in cen...

journal_title：Experimental brain research

authors： Willis WD Jr

更新日期：2009-06-01 00:00:00

abstract：:The European Resuscitation Guidelines recommend that survivors of cardiac arrest (CA) be resuscitated with 100% O2 and undergo subsequent-post-return of spontaneous circulation (ROSC)-reduction of O2 supply to prevent hyperoxia. Hyperoxia produces a "second neurotoxic hit," which, together with the initial ischemic in...

journal_title：Experimental brain research

authors： Keilhoff G,Titze M,Rathert H,Lucas B,Esser T,Ebmeyer U

更新日期：2020-04-01 00:00:00

abstract：:Unitary discharges of the lateral geniculate nucleus (LGN) were analyzed in anesthetized and paralyzed rats after inactivation of visual cortical areas (VC) by cryoblockade or by depositing a cotton wick soaked in KCl (3 M). The receptive fields were mapped prior to and following the interruption of the cortico-genicu...

journal_title：Experimental brain research

authors： Molotchnikoff S,Tremblay F,Lepore F

更新日期：1984-01-01 00:00:00

abstract：:Normal vision overrides perturbed vestibular information for the optimization of performance during goal directed locomotion, suggesting down-regulation of vestibular gain. However, it is not known if the responses to vestibular perturbation are accentuated when vision is impaired. Furthermore, both visual and vestibu...

journal_title：Experimental brain research

authors： Deshpande N,Patla AE

更新日期：2007-01-01 00:00:00

abstract：:The fate of monoclonal anti-vasopressin antibodies (VP-MAbs) injected in vivo into the paraventricular nucleus (PVN) of the rat brain was studied by immunocytochemistry. Depending on the post survival time, VP-MAbs contained in an ascites fluid were stained at different levels of the VP neurons: the cytoplasm of the P...

journal_title：Experimental brain research

authors： Burlet AJ,Leon-Henri BP,Robert FR,Arahmani A,Fernette BM,Burlet CR

更新日期：1987-01-01 00:00:00

abstract：:The smooth-pursuit system uses retinal image-slip-velocity information of target motion to match eye velocity to actual target velocity. The caudal part of the frontal eye fields (FEF) contains neurons whose activity is related to direction and velocity of smooth-pursuit eye movements (pursuit neurons), and these neur...

journal_title：Experimental brain research

authors： Kurkin S,Akao T,Fukushima J,Fukushima K

更新日期：2009-02-01 00:00:00

abstract：:Early postnatal application of thyroid hormones to rats results in morphological changes in septum and hippocampus. Modulation in the expression of either neurotrophins and/or their receptors is postulated to be responsible for these effects. In the present study we tested whether thyroxine administration leads to cha...

journal_title：Experimental brain research

authors： Lüesse HG,Roskoden T,Linke R,Otten U,Heese K,Schwegler H

更新日期：1998-03-01 00:00:00

abstract：:Electron microscopic examination of the monkey lateral geniculate nucleus, pars dorsalis (LGNd) reveals the occurrence of synaptic contacts between profiles belonging to interneurons (I-cells). Almost all combinations are observed, namely, axodendritic, dendrodendritic, dendrosomatic and somatodendritic, the most freq...

journal_title：Experimental brain research

authors： Pasik P,Pasik T,Hámori J

更新日期：1976-05-10 00:00:00

abstract：:Geniculate cell responses to moving bars and moving texture were compared in normal cats and in cats in which the corticofugal feedback was removed by cortical ablation. In experimental animals the response strength and the velocity upper cutoff assessed with a moving bar was reduced compared to control animals. The s...

journal_title：Experimental brain research

authors： Gulyás B,Lagae L,Eysel U,Orban GA

更新日期：1990-01-01 00:00:00

abstract：:The results of this study show that the different receptive fields of multisensory neurons in the cortex of the cat anterior ectosylvian sulcus (AES) were in spatial register, and it is this register that determined the manner in which these neurons integrated multiple sensory stimuli. The functional properties of mul...

journal_title：Experimental brain research

authors： Wallace MT,Meredith MA,Stein BE

更新日期：1992-01-01 00:00:00

abstract：:In everyday life, we often use graphical interfaces where the visual space is mapped to the motor space with a visuomotor gain called the control display gain. One of the key objectives in the field of Human Computer Interaction is to design this control display gain so as to enhance users' performance. Although the c...

journal_title：Experimental brain research

authors： Scotto CR,Vu VH,Casiez G,Fernandez L

更新日期：2020-09-01 00:00:00

abstract：:In order to examine the stability and patterning of speech movement sequences, movements of the lip were recorded as subjects produced a phrase at normal, fast, and slow rates. Three methods of analysis were employed. First, a new index of spatiotemporal stability was derived by summing the standard deviations compute...

journal_title：Experimental brain research

authors： Smith A,Goffman L,Zelaznik HN,Ying G,McGillem C

更新日期：1995-01-01 00:00:00

abstract：:The cortical anatomical substrates by which visual information may influence the frontal areas controlling reaching movements to visual targets were studied in monkeys. A reaching task was employed to characterize the arm-related regions of the frontal lobe. Injections of retrograde tracers into these physiologically ...

journal_title：Experimental brain research

authors： Johnson PB,Ferraina S,Caminiti R

更新日期：1993-01-01 00:00:00

abstract：:The effects of left and right alignment on the Ebbinghaus illusion were investigated in three experiments. In Experiment 1, the Ebbinghaus illusion was presented on the left or right side, and the points of subjective equality (PSE) were measured. Only the central disk of the figure with small inducers was perceived l...

journal_title：Experimental brain research

authors： Saneyoshi A

更新日期：2018-04-01 00:00:00

abstract：:For 1 week, healthy human participants ( n=7) were devoid of normal vision by exposure to prism lenses that optically rotated their perceived world around the line of sight by 180 degrees. Adaptation to such prisms involved sustained and vigorous practice of the ability to redirect the unadapted efferent motor command...

journal_title：Experimental brain research

authors： Richter H,Magnusson S,Imamura K,Fredrikson M,Okura M,Watanabe Y,Långström B

更新日期：2002-06-01 00:00:00

abstract：:Prior studies identify two cortical areas, posterior parahippocampal cortex and retrosplenial cortex, that preferentially activate to images of real-world scenes compared to images of other meaningful visual stimuli such as objects and faces. Behavioral and computational studies suggest that sub-categories of real-wor...

journal_title：Experimental brain research

authors： Henderson JM,Larson CL,Zhu DC

更新日期：2007-05-01 00:00:00

abstract：:Studies on motor learning typically present a constant adaptation stimulus, corresponding to the desired final adaptive state. Studies of the auditory and optokinetic systems provide compelling evidence that neural plasticity is enhanced when the error signal driving adaptation is instead adjusted gradually throughout...

journal_title：Experimental brain research

authors： Schubert MC,Della Santina CC,Shelhamer M

更新日期：2008-12-01 00:00:00

abstract：:Rhythmic movement patterns between the hands in response to environmental signals are studied in normal (musicians and nonmusicians) and split-brain subjects. Only two phase-locked states - in-phase and anti-phase - are shown to be stable for all subjects. Split-brain subjects show an even greater attraction to these ...

journal_title：Experimental brain research

authors： Tuller B,Kelso JA

更新日期：1989-01-01 00:00:00