Compensation of postural effects of hemilabyrinthectomy in the cat. A sensory substitution process?

abstract：:Any passive rigid inertial object that we hold in our hand, e.g., a tennis racquet, imposes a field of forces on the arm that depends on limb position, velocity, and acceleration. A fundamental characteristic of this field is that the forces due to acceleration and velocity are linearly separable in the intrinsic coor...

journal_title：Experimental brain research

authors： Hwang EJ,Smith MA,Shadmehr R

更新日期：2006-03-01 00:00:00

abstract：:Eight 10-year-old children manifesting movement co-ordination problems (MCP), as assessed by the Movement Assessment Battery for Children (MABC), and a matched control group of eight children of a similar age without such problems, were required to carry out a laboratory ball-catching task. The task was constrained in...

journal_title：Experimental brain research

authors： Estil LB,Ingvaldsen RP,Whiting HT

更新日期：2002-11-01 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

authors： Schwark HD,Esteky H,Jones EG

更新日期：1992-01-01 00:00:00

abstract：:Rhythmic interlimb coordination is characterized by attraction to stable phase and frequency relations. Sudden, unintended transitions between such coordination patterns have been observed in iso- and multifrequency tasks when movement frequency was gradually increased. These transitions have been accounted for by mod...

journal_title：Experimental brain research

authors： Peper CE,Beek PJ

更新日期：1998-01-01 00:00:00

abstract：:We ask whether a target's velocity is considered when planning a fast interceptive action. Human volunteers hit targets that could move at different velocities from across a tilted screen (the hand starting 40 cm away from the screen). We examined how the direction in which the hand initially moved depended on the tar...

journal_title：Experimental brain research

authors： de Lussanet MH,Smeets JB,Brenner E

更新日期：2004-07-01 00:00:00

abstract：:It is not evident how the small effects of the flankers of the Ebbinghaus figure on peak grip aperture (PGA) should be interpreted. One interpretation is that the flankers influence the estimated size, which in turn influences the grasp. If this interpretation is correct, then only the size-dependent aspects of the gr...

journal_title：Experimental brain research

authors： de Grave DD,Biegstraaten M,Smeets JB,Brenner E

更新日期：2005-05-01 00:00:00

abstract：:Two rhesus monkeys were trained to make saccadic eye movements from a central fixation point towards a peripheral target. Saccadic reaction times (SRTs) were measured in the gap paradigm (200 ms pause between offset of fixation point and onset of peripheral target). Target position for extensive training (SRTs of 150 ...

journal_title：Experimental brain research

authors： Weber H,Fischer B

更新日期：1990-01-01 00:00:00

abstract：:Effects of sensory deprivation upon ability of a vibrissa to activate a functional column in the barrel field of somatosensory cortex were examined with 2 deoxyglucose (2DG) autoradiography in the rat. After six weeks of whisker plucking started at birth, and one week of recovery, the cortical column activated by the ...

journal_title：Experimental brain research

authors： Kossut M

更新日期：1992-01-01 00:00:00

abstract：:The review summarises current evidence on the cognitive mechanisms for the integration of spatial and temporal representations and of common brain structures to process the where and when of stimuli. Psychophysical experiments document the presence of spatially localised distortions of sub-second time intervals and su...

journal_title：Experimental brain research

authors： Oliveri M,Koch G,Caltagirone C

更新日期：2009-06-01 00:00:00

abstract：:If horizontal saccades or smooth-pursuit eye movements are made with the line-of-sight at different elevations, the three-dimensional (3D) angular rotation axis of the globe tilts by half the vertical eye eccentricity. This phenomenon is named "half-angle rule" and is a consequence of Listing's law. It was recently fo...

journal_title：Experimental brain research

authors： Palla A,Straumann D,Obzina H

更新日期：1999-11-01 00:00:00

abstract：:Descending projections from the mesencephalon and superior colliculus to the inferior olive were analyzed by an autoradiographic tracing method. Injections of tritium-labelled leucine were placed in regions which had previously been identified as sources of afferents to the olive. These were located adjacent to the ce...

journal_title：Experimental brain research

authors： Saint-Cyr JA,Courville J

更新日期：1982-01-01 00:00:00

abstract：:Everyday actions can be characterized by whether they are freely chosen or commanded by external stimuli, and whether they produce pleasant or unpleasant outcomes. To assess how these aspects of actions affect the sense of agency, we asked participants to perform freely selected or instructed key presses which could p...

journal_title：Experimental brain research

authors： Barlas Z,Hockley WE,Obhi SS

更新日期：2018-01-01 00:00:00

abstract：:The present study tested the idea that the visuomotor systems mediating prehension do not have independent access to pictorial cues processed by perceptual mechanisms. Individuals with visual form agnosia, whose perceptual systems are compromised but who have intact visuomotor control, were examined to determine wheth...

journal_title：Experimental brain research

authors： Marotta JJ,Behrmann M,Goodale MA

更新日期：1997-08-01 00:00:00

abstract：:The gap effect refers to the finding that saccadic latencies are typically reduced when a fixation point is removed prior to the appearance of a peripheral target. This reduction in saccadic reaction time (SacRT) is thought to be due to a general warning effect and an oculomotor specific fixation offset that occur whe...

journal_title：Experimental brain research

authors： Pratt J,Bekkering H,Leung M

更新日期：2000-01-01 00:00:00

abstract：:Many vertebrates generate blinks as a component of saccadic gaze shifts. We investigated the nature of this linkage between saccades and blinking in normal humans. Activation of the orbicularis oculi, the lid closing muscle, EMG occurred with 97% of saccadic gaze shifts larger than 33 degrees. The blinks typically beg...

journal_title：Experimental brain research

authors： Evinger C,Manning KA,Pellegrini JJ,Basso MA,Powers AS,Sibony PA

更新日期：1994-01-01 00:00:00

abstract：:The thalamic reticular nucleus (RTN) exerts an inhibitory influence upon the dorsal thalamus. During wakefulness and arousal, RTN neurons fire tonically, whereas during slow-wave sleep they fire rhythmic high frequency bursts. The effects produced by RTN inhibition upon the activity of dorsal thalamic neurons will the...

journal_title：Experimental brain research

authors： Warren RA,Jones EG

更新日期：1994-01-01 00:00:00

abstract：:The response of 835 click-sensitive neurons in the inferior colliculus (IC) to ramp frequency modulated (FM) tones was studied in the anaesthetized rat. More than 70% of the cells were sensitive to the FM sound, and over 25% were "FM specialized". Systematic variations of the stimulus parameters showed that sweep velo...

journal_title：Experimental brain research

authors： Poon PW,Chen X,Hwang JC

更新日期：1991-01-01 00:00:00

abstract：:In classic conditioning, the interstimulus interval (ISI) between the conditioned (CS) and unconditioned (US) stimulus is a critical parameter. The aim of the present experiment was to assess whether, during conditioning, modification of the CS-US interval could reliably produce changes in the functional properties of...

journal_title：Experimental brain research

authors： Pananceau M,Rispal-Padel L

更新日期：2000-06-01 00:00:00

abstract：:In a recent study (Whitwell et al. in Exp Brain Res 185:111-119, 2008), we showed that the visuomotor system is "cognitively impenetrable" to the extent that explicit predictive knowledge of the availability of visual feedback on an upcoming trial fails to optimize grasping. The results suggested that the effects of t...

journal_title：Experimental brain research

authors： Whitwell RL,Goodale MA

更新日期：2009-04-01 00:00:00

abstract：:The main belly of the macaque's flexor digitorum profundus (FDP) is divided by a dissectible plane into radial and ulnar regions. The present report describes three findings which suggest that the radial and ulnar regions represent separate functional subdivisions of the FDP. First, electromyographic (EMG) recordings ...

journal_title：Experimental brain research

authors： Schieber MH

更新日期：1993-01-01 00:00:00

abstract：:Paired-pulse transcranial magnetic stimulation was used in three experiments to measure the properties of long-latency intracortical inhibition (LICI) acting on the relaxed first dorsal interosseus muscle of the left and right hand in right-handed volunteers. The experiments show that LICI is asymmetrical: it emerges ...

journal_title：Experimental brain research

authors： Hammond GR,Garvey CA

更新日期：2006-07-01 00:00:00

abstract：:In order to find out whether human vergence eye movements are influenced by simultaneous hand tracking movements, vergence was studied when sinusoidal (expressed in vergence angles) target movements were tracked. The target motion was externally generated and the target actually moved in depth. Tracking was done by th...

journal_title：Experimental brain research

authors： Koken PW,Erkelens CJ

更新日期：1993-01-01 00:00:00

abstract：:Reports of spatial interactions between current and upcoming elements in a movement sequence could be due to intentional planning of a "global" action sequence (i.e., strategic effects), or to unintentional motor planning arising from merely paying attention to upcoming target objects (i.e., interference effects). The...

journal_title：Experimental brain research

authors： LeBlanc KA,Westwood DA

更新日期：2016-04-01 00:00:00

abstract：:Variations of the µ-opioid receptor gene OPRM1 have been shown to modulate pain perception with some evidence pointing towards a modulation of not only physical but also "psychological pain". In line with suggestions of a common neural network involved in the processing of physical pain and negative and distressing st...

journal_title：Experimental brain research

authors： Bonenberger M,Plener PL,Groschwitz RC,Grön G,Abler B

更新日期：2015-09-01 00:00:00

abstract：:The goal of this study was to identify the control mechanism used for locomotion pointing regulation under different external temporal constraints. Subjects ( n=8) had to walk on a treadmill through a number of virtual hallways and cross a pair of gliding doors that opened and closed at a constant preset frequency (0....

journal_title：Experimental brain research

authors： Montagne G,Buekers M,de Rugy A,Camachon C,Laurent M

更新日期：2002-03-01 00:00:00

abstract：:Single unit activity was recorded from tuberoinfundibular neurones in urethane-anaesthetized pro-oestrous rats. Responses following single shock (0.2 Hz) stimulation of the preoptic area/anterior hypothalamus (PO/AH) or nucleus accumbens (ACB) were recorded and computed for 137 single units. More cells were shown, by ...

journal_title：Experimental brain research

authors： Saphier DJ

更新日期：1985-01-01 00:00:00

abstract：:In the Brentano version of the Müller-Lyer illusion one part looks longer and the other looks shorter than it really is. We asked participants to make saccadic eye movements along these parts of the figure and between positions on the figure and a position outside the illusion. By showing that saccades from outside th...

journal_title：Experimental brain research

authors： de Grave DD,Smeets JB,Brenner E

更新日期：2006-10-01 00:00:00

abstract：:We examined modulation of transmission of short-latency excitation produced by distal hindlimb cutaneous input, as well as fluctuations in motoneuron membrane potential and input resistance, in flexor digitorum longus (FDL) motoneurons during fictive locomotion. Fictive stepping was induced in unaesthetized, decerebra...

journal_title：Experimental brain research

authors： Schmidt BJ,Meyers DE,Fleshman JW,Tokuriki M,Burke RE

更新日期：1988-01-01 00:00:00

abstract：:Adequate cerebral perfusion is necessary to preserve cerebral O(2) supply in order to maintain brain cell function. Our aim was to assess the influence of gestational age on the response of cerebral hemodynamics to hypoxemia and to determine thresholds of cerebral O(2) supply for preservation of brain cell function in...

journal_title：Experimental brain research

authors： Van Os S,Klaessens J,Hopman J,Liem D,Van de Bor M

更新日期：2003-07-01 00:00:00

abstract：:Cultured olfactory bulb cells from embryonic mice had ultrastructural characteristics similar to those of many cell types in the intact adult mouse olfactory bulb. Identified cultured cells included mitral/tufted cells, granule cells, short-axon cells, and fibrous and protoplasmic astrocytes. Cultured neurons were fou...

journal_title：Experimental brain research

authors： Fracek SP Jr,Guo L,Schafer R

更新日期：1994-01-01 00:00:00