abstract：:Does the brain use a separate internal model for cursor mechanics during visuomotor adaptation? We compared the amount of adaptation and transfer to the opposite arm when subjects reached the targets under different viewing conditions of the arm during reaching. If the brain forms separate models, we predict a differe...

journal_title：Experimental brain research

authors： Balitsky Thompson AK,Henriques DY

更新日期：2010-05-01 00:00:00

abstract：:The afferent volley generated during neuromuscular electrical stimulation (NMES) can increase the excitability of the human corticospinal (CS) pathway. This study was designed to determine the effect of different frequencies of NMES applied over the common peroneal nerve on changes in CS excitability for the tibialis ...

journal_title：Experimental brain research

authors： Mang CS,Lagerquist O,Collins DF

更新日期：2010-05-01 00:00:00

abstract：:Shape is an inherent property of objects existing in both vision and touch but not audition. Can shape then be represented by sound artificially? It has previously been shown that sound can convey visual information by means of image-to-sound coding, but whether sound can code tactile information is not clear. Blindfo...

journal_title：Experimental brain research

authors： Kim JK,Zatorre RJ

更新日期：2010-05-01 00:00:00

abstract：:Astronauts returning from space flight and performing Earth-bound activities must rapidly transition from the microgravity-adapted sensorimotor state to that of Earth's gravity. The goal of the current study was to assess locomotor dysfunction and recovery of function after long-duration space flight using a test of f...

journal_title：Experimental brain research

authors： Mulavara AP,Feiveson AH,Fiedler J,Cohen H,Peters BT,Miller C,Brady R,Bloomberg JJ

更新日期：2010-05-01 00:00:00

abstract：:Our aim was to describe the differences in the presence of trigger points (TrPs) in the shoulder muscles and to investigate the presence of mechanical hypersensitivity in patients with unilateral shoulder impingement and healthy controls. Twelve patients with strictly unilateral shoulder impingement and 10 matched con...

journal_title：Experimental brain research

authors： Hidalgo-Lozano A,Fernández-de-las-Peñas C,Alonso-Blanco C,Ge HY,Arendt-Nielsen L,Arroyo-Morales M

更新日期：2010-05-01 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：:The purpose of the study was to determine the contributions of endpoint variance and trajectory variability to the endpoint accuracy of goal-directed isometric contractions when the target force and contraction speed were varied. Thirteen young adults (25 +/- 6 years) performed blocks of 15 trials at each of 2 contrac...

journal_title：Experimental brain research

authors： Poston B,Christou EA,Enoka JA,Enoka RM

更新日期：2010-04-01 00:00:00

abstract：:Local alpha-band synchronization has been associated with both cortical idling and active inhibition. Recent evidence, however, suggests that long-range alpha synchronization increases functional coupling between cortical regions. We demonstrate increased long-range alpha and beta band phase synchronization during sho...

journal_title：Experimental brain research

authors： Doesburg SM,Herdman AT,Ribary U,Cheung T,Moiseev A,Weinberg H,Liotti M,Weeks D,Grunau RE

更新日期：2010-04-01 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

authors： Ioffe ME,Chernikova LA,Umarova RM,Katsuba NA,Kulikov MA

更新日期：2010-04-01 00:00:00

abstract：:The influence of a secondary task on speeded responses, and its effect on the outcome of more complex tasks has been studied in detail. However, the consequence of task interference on specific movement parameters other than speed and accuracy has been largely ignored. The current study examines how performing a secon...

journal_title：Experimental brain research

authors： Martin BC,Henriques DY

更新日期：2010-04-01 00:00:00

abstract：:Sensitivity to many visual stimuli, and, in particular, image displacement, is reduced during a change in fixation (saccade) compared to when the eye is still. In these experiments, we studied the sensitivity of observers to ecologically relevant image translations of large, complex, real world scenes either during ho...

journal_title：Experimental brain research

authors： Allison RS,Schumacher J,Sadr S,Herpers R

更新日期：2010-04-01 00:00:00

abstract：:Many studies demonstrated a higher accuracy in perception and action when using more than one sense. The maximum-likelihood estimation (MLE) model offers a recent approach on how perceptual information is integrated across different sensory modalities suggesting statistically optimal integration. The purpose of the pr...

journal_title：Experimental brain research

authors： Reuschel J,Drewing K,Henriques DY,Rösler F,Fiehler K

更新日期：2010-04-01 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：: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：:The aim of this study was to examine coherence between surface electromyographic (EMG) signals from two index finger flexor muscles, the first dorsal interosseous (FDI) and flexor digitorum superficialis (FDS), during and immediately following sustained, fatiguing isometric contraction. Coherence was observed between ...

journal_title：Experimental brain research

authors： Kattla S,Lowery MM

更新日期：2010-04-01 00:00:00

abstract：:Visual judgment of small numerosities (<4) is generally assumed to be done through subitizing, which is a faster process than counting. Subitizing has also been shown to occur in haptic judgment of the number of spheres in the hand. Furthermore, interactions have been shown to exist between visually perceived numbers ...

journal_title：Experimental brain research

authors： Plaisier MA,Tiest WM,Kappers AM

更新日期：2010-04-01 00:00:00

abstract：:When searching for a target with eye movements, saccades are planned and initiated while the visual information is still being processed, so that subjects often make saccades away from the target and then have to make an additional return saccade. Presumably, the cost of the additional saccades is outweighed by the ad...

journal_title：Experimental brain research

authors： Liesker H,Brenner E,Smeets JB

更新日期：2010-03-01 00:00:00

abstract：:Previous research has shown that the timing of a sensor-motor event is recalibrated after a brief exposure to a delayed feedback of a voluntary action (Stetson et al. 2006). Here, we examined whether it is the sensory or motor event that is shifted in time. We compared lag adaption for action-feedback in visuo-motor p...

journal_title：Experimental brain research

authors： Sugano Y,Keetels M,Vroomen J

更新日期：2010-03-01 00:00:00

abstract：:In a previous study, we found that haptic guidance from a robotic steering wheel can improve short-term learning of steering of a simulated vehicle, in contrast to several studies of other tasks that had found that the guidance either impairs or does not aid motor learning. In this study, we examined whether haptic gu...

journal_title：Experimental brain research

authors： Marchal-Crespo L,McHughen S,Cramer SC,Reinkensmeyer DJ

更新日期：2010-03-01 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：:The task of sliding a nut from a rod has been used to study manual slowing in old age (Smith et al. in Neurology 53:1458-1461, 1999; Neurobiol Aging 26:883-890, 2005). In this experiment, we sought to determine if the age-related slowing in this task occurs with losses of motor precision, as indicated by the forces ex...

journal_title：Experimental brain research

authors： Cole KJ,Cook KM,Hynes SM,Darling WG

更新日期：2010-03-01 00:00:00

abstract：:Structural changes of the cerebellum have been reported in several psychiatric diseases like schizophrenia, autism and attention-deficit/hyperactivity disorder (ADHD). Beside behavioral deficits children with ADHD often show slight motor abnormalities. Cerebellar malfunction may contribute. The cerebellum is a structu...

journal_title：Experimental brain research

authors： Frings M,Gaertner K,Buderath P,Gerwig M,Christiansen H,Schoch B,Gizewski ER,Hebebrand J,Timmann D

更新日期：2010-03-01 00:00:00

abstract：:Deficits in postural control are one of the hallmarks of disability in children with cerebral palsy (CP). Yet, much remains unknown regarding the etiology of postural deficits in these children. Here we evaluated postural control at a simplified task level by measuring head stability during quiet sitting while systema...

journal_title：Experimental brain research

authors： Saavedra S,Woollacott M,van Donkelaar P

更新日期：2010-02-01 00:00:00

abstract：:The control of self-motion is supported by visual, vestibular, and proprioceptive signals. Recent research has shown how these signals interact in the monkey medio-superior temporal area (area MST) to enhance and disambiguate the perception of heading during self-motion. Area MST is a central stage for self-motion pro...

journal_title：Experimental brain research

authors： Bremmer F,Kubischik M,Pekel M,Hoffmann KP,Lappe M

更新日期：2010-01-01 00:00:00

abstract：:Haptic perception is based on the integration of afferent proprioceptive and tactile signals. A further potential source of information during active touch is predicted sensory feedback (PSF) derived from a copy of efferent motor commands that give rise to the exploratory actions. There is substantial evidence that PS...

journal_title：Experimental brain research

authors： Sciutti A,Squeri V,Gori M,Masia L,Sandini G,Konczak J

更新日期：2010-01-01 00:00:00

abstract：:Norepinephrine has been hypothesized to provide a learning and memory signal. Norepinephrine long-term potentiation of perforant path input to the dentate gyrus of the hippocampus provides a model for norepinephrine initiated memory processes. However, in vitro, the pairing of perforant path stimulation and norepineph...

journal_title：Experimental brain research

authors： Reid AT,Harley CW

更新日期：2010-01-01 00:00:00

abstract：:The goal of this study was to determine the effect of changes in core body temperature on the resting discharge rate and sensitivity of vestibular-nerve afferents. Extracellular recordings were made from vestibular-nerve afferents innervating the semicircular canals in anesthetized C57BL/6 mice maintained at a core bo...

journal_title：Experimental brain research

authors： Park HJ,Lasker DM,Minor LB

更新日期：2010-01-01 00:00:00

abstract：:Visual feedback is essential when minimizing force fluctuations. Varying degrees of somatotopic organization have been shown in different regions of the brain for the upper and lower extremities, and visual feedback may be processed differently based on the body effector where feedback-based corrections are used. This...

journal_title：Experimental brain research

authors： Prodoehl J,Vaillancourt DE

更新日期：2010-01-01 00:00:00

abstract：:Cortical migration defects are often associated with epilepsy. In mesial temporal lobe epilepsy (MTLE), granule cell dispersion (GCD), a migration defect of dentate granule cells, is frequently observed. Little is known how GCD develops and to which extent it contributes to the development of seizure activity. Since t...

journal_title：Experimental brain research

authors： Haas CA,Frotscher M

更新日期：2010-01-01 00:00:00

abstract：:Observing an action activates action representations in the motor system. Moreover, the representations of manipulable objects are closely linked to the motor systems at a functional and neuroanatomical level. Here, we investigated whether action observation can facilitate object recognition using an action priming pa...

journal_title：Experimental brain research

authors： Helbig HB,Steinwender J,Graf M,Kiefer M

更新日期：2010-01-01 00:00:00

abstract：:The reinforcement learning hypothesis of dopamine function predicts that dopamine acts as a teaching signal by governing synaptic plasticity in the striatum. Induced changes in synaptic strength enable the cortico-striatal network to learn a mapping between situations and actions that lead to a reward. A review of the...

journal_title：Experimental brain research

authors： Morris G,Schmidt R,Bergman H

更新日期：2010-01-01 00:00:00

abstract：:Albinism affects the anatomy and physiology of the visual system in mammals. Behavioural, anatomical and in vivo electrophysiological investigations revealed that the optokinetic reflex is abnormal and retinal slip neurons in the nucleus of the optic tract and the dorsal terminal nucleus of the accessory optic system ...

journal_title：Experimental brain research

authors： Krause M,Hoffmann KP

更新日期：2009-12-01 00:00:00

abstract：:The behavioral relevance of neuronal activity in primate area MT for motion perception and control of visually guided eye movements is well documented. The projections of area MT comprise connections to subcortical structures and to the parietal network, both of which play a role in visuospatial transformation for gui...

journal_title：Experimental brain research

authors： Dannenberg S,Gieselmann MA,Kruse W,Hoffmann KP

更新日期：2009-12-01 00:00:00

abstract：:The synRas transgenic mice express constitutively activated Valin12-Harvey Ras in postnatal neocortical pyramidal neurons. This leads to somatodendritic hypertrophy, higher densities of spines and synapses, and an enhancement of synaptic long-term potentiation associated with an increased glutamate receptor-mediated a...

journal_title：Experimental brain research

authors： Patz S,Colovic C,Wawro S,Lafenetre P,Leske O,Heumann R,Schönfelder S,Tomaschewski J,Räk A,Wahle P

更新日期：2009-12-01 00:00:00

abstract：:In this study, we investigated the neural basis of virtual time to contact (VTC) and the hypothesis that VTC provides predictive information for future postural instability. A novel approach to differentiate stable pre-falling and transition-to-instability stages within a single postural trial while a subject was perf...

journal_title：Experimental brain research

authors： Slobounov S,Cao C,Jaiswal N,Newell KM

更新日期：2009-10-01 00:00:00

abstract：:We investigated whether the order of gaze shifts affected spatial and temporal aspects of discrete bimanual pointing movements. Ten male participants concurrently executed bimanual pointing movements as quickly and accurately as possible to left and right lateral targets presented with the same and different amplitude...

journal_title：Experimental brain research

authors： Kokubu M,Ando S,Oda S

更新日期：2009-10-01 00:00:00

abstract：:It has previously been found that in fast point-to-point arm movements, proprioceptive feedback is centrally suppressed at the beginning of movement and is facilitated at a time that is correlated with temporal parameters of the planned movement. Here, we show that this correlation holds when subjects are explicitly i...

journal_title：Experimental brain research

authors： David FJ,Poon C,Niu CM,Corcos DM,Shapiro MB

更新日期：2009-10-01 00:00:00

abstract：:Functional magnetic resonance imaging was used to explore the neural correlates of semantic judgments to Chinese characters. Adult participants were asked to indicate if character pairs were related in meaning that were arranged in a continuous variable according to association strength. This parametric manipulation a...

journal_title：Experimental brain research

authors： Chou TL,Chen CW,Wu MY,Booth JR

更新日期：2009-10-01 00:00:00

abstract：:Here, we demonstrate a systematic shift in the perceived location of a tactile stimulus on the arm toward where the eye is looking. Participants reported the perceived position of touches presented between the elbow and the wrist while maintaining eye positions at various eccentricities. The perceived location of the ...

journal_title：Experimental brain research

authors： Harrar V,Harris LR

更新日期：2009-09-01 00:00:00

abstract：:The extent to which attending to one stimulus while ignoring another influences the integration of visual and inertial (vestibular, somatosensory, proprioceptive) stimuli is currently unknown. It is also unclear how cue integration is affected by an awareness of cue conflicts. We investigated these questions using a t...

journal_title：Experimental brain research

authors： Berger DR,Bülthoff HH

更新日期：2009-09-01 00:00:00