Behaviour of neurons in monkey peri-arcuate and precentral cortex before and during visually guided arm and hand movements.

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 subcommissural organ (SCO) is a brain gland secreting glycoproteins into the cerebrospinal fluid (CSF), where they aggregate forming the Reissner's fiber (RF). By the continuous addition of newly released glycoproteins, RF grows along the cerebral aqueduct, fourth ventricle, and central canal of the spinal cord. A...

journal_title：Experimental brain research

authors： Rodríguez S,Vio K,Wagner C,Barría M,Navarrete EH,Ramírez VD,Pérez-Fígares JM,Rodríguez EM

更新日期：1999-10-01 00:00:00

abstract：:We investigated the post-train effects of repetitive transcranial magnetic stimulation (rTMS) on motor evoked potential (MEP) size and cortical silent period (SP) duration. rTMS was delivered over the primary motor cortex in trains of 5, 10, 20, 40 and 60 stimuli in normal subjects at rest and in trains of 5, 10 and 2...

journal_title：Experimental brain research

authors： Gilio F,Conte A,Vanacore N,Frasca V,Inghilleri M,Berardelli A

更新日期：2007-02-01 00:00:00

abstract：:The adaptation and habituation characteristics produced by the repeated presentation of a moving visual stimulus were studied in single cells in the pigeon's optic tectum. Units located near the surface in the stratum opticum showed little adaptation. However, cells located in deeper layers exhibited varying rates and...

journal_title：Experimental brain research

authors： Woods EJ,Frost BJ

更新日期：1977-03-30 00:00:00

abstract：:We examined the distribution of labeled neurons in the parabigeminal nucleus of the monkey following injections of retrograde fluorescent tracers into the superior colliculus. The extent of the visual field representation included in the injection site was assessed from the location of labeled cells in striate cortex....

journal_title：Experimental brain research

authors： Baizer JS,Whitney JF,Bender DB

更新日期：1991-01-01 00:00:00

abstract：:The study assessed the ability of the central nervous system (CNS) to use echoic information from sensory substitution devices (SSDs) to rotate the shoulders and safely pass through apertures of different width. Ten visually normal participants performed this task with full vision, or blindfolded using an SSD to obtai...

journal_title：Experimental brain research

authors： Kolarik AJ,Timmis MA,Cirstea S,Pardhan S

更新日期：2014-03-01 00:00:00

abstract：:Postischemic spontaneous hyperthermia as a complication of occlusion of the middle cerebral artery with an intraluminal filament has been observed by some authors, but many other reports do not discuss this factor. The possible reasons why some of the authors have not seen severe hyperthermia in their experiments incl...

journal_title：Experimental brain research

authors： Abrahám H,Somogyvári-Vigh A,Maderdrut JL,Vigh S,Arimura A

更新日期：2002-01-01 00:00:00

abstract：:In studies of human eye-head coordinated saccadic gaze shifts, different laboratories have found greatly different magnitudes of head movements for a given amplitude of gaze shift (head movement gain). The present study was conducted to examine why, and to quantify volitional head movements. Fixation/target lights wer...

journal_title：Experimental brain research

authors： Fuller JH

更新日期：1992-01-01 00:00:00

abstract：:A task has been developed to investigate the ability of cats to switch the direction of an ongoing target-reaching forelimb movement with the aid of a visual cue. The cats were standing in front of two horizontal tubes (internal diameter 30 mm; shoulder level) with food. The entrances of the tubes were closed with opa...

journal_title：Experimental brain research

authors： Alstermark B,Gorska T,Lundberg A,Pettersson LG

更新日期：1990-01-01 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

abstract：:Saccadic latencies measured in response to a step-wise displacement of the target may be substantially reduced if a gap separates the offset of the initial fixation point and the onset of the peripheral target. According to Fischer and Ramsperger (1984) this paradigm provokes a bimodal latency distribution which consi...

journal_title：Experimental brain research

authors： Jüttner M,Wolf W

更新日期：1992-01-01 00:00:00

abstract：:(1) The responses of CA1 pyramidal cells to short glutamate pulses (10-50 ms) delivered at sensitive spots in the apical dendrites have been analysed by intracellular recording. (2) The glutamate pulses elicited stable depolarizing responses in a dose- and frequency-dependent manner. (3) When a single action potential...

journal_title：Experimental brain research

authors： Hu GY,Hvalby O

更新日期：1992-01-01 00:00:00

abstract：:Several non-physiological stimuli (i.e. pharmacological or electrical stimuli) have been shown to induce Fos expression in striatal neurons. In this work, striatal Fos (i.e. Fos-like) expression was studied after physiological stimulation, i.e. motor activity (treadmill running at 36 m/min for 20 min). In rats killed ...

journal_title：Experimental brain research

authors： Liste I,Guerra MJ,Caruncho HJ,Labandeira-Garcia JL

更新日期：1997-07-01 00:00:00

abstract：:A recent study (Rossi et al. 2001) implied the absence of figure-ground based contextual modulation in macaque V1, in contrast to the study on which it was modelled (Zipser et al. 1996). We suggest that Rossi et al. may have underestimated the extent of modulation by considering only positive and not also negative mod...

journal_title：Experimental brain research

authors： Corthout E,Supèr H

更新日期：2004-05-01 00:00:00

abstract：:This study exploited the alterations in pedal speed and joints kinematics elicited by changing crank length (CL) to test how altered task mechanics during cycling will modulate the muscle activation characteristics in human rectus femoris (RF), biceps femoris long head (BF), soleus (SOL) and tibialis anterior (TA). Ki...

journal_title：Experimental brain research

authors： Mileva K,Turner D

更新日期：2003-10-01 00:00:00

abstract：:The aim of this study was to evaluate the modulation of muscle activity during locomotor-like movements by different walking speeds in subjects with a motor complete spinal cord injury (SCI) compared to actively--and passively-walking control subjects without neurological deficit. Stepping movements on a treadmill wer...

journal_title：Experimental brain research

authors： Lünenburger L,Bolliger M,Czell D,Müller R,Dietz V

更新日期：2006-10-01 00:00:00

abstract：:The extent and strength of long-distance coupling between locomotor networks in the rostral and caudal spinal cord of larval lamprey were examined with in vitro brain/spinal cord preparations, in which spinal locomotor activity was initiated by chemical microstimulation in the brain, as well as with computer modeling....

journal_title：Experimental brain research

authors： McClellan AD,Hagevik A

更新日期：1999-05-01 00:00:00

abstract：:The line bisection task--commonly used as a clinical measure of unilateral neglect--requires participants to place a mark on a horizontal line to indicate where they think centre is. In general, results suggest that the allocation of attention mediates bisection. In addition, previous research shows that participants ...

journal_title：Experimental brain research

authors： Valadao DF,Hurwitz M,Danckert J

更新日期：2010-12-01 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：:After injections of horseradish peroxidase (HRP) into various parts of the superior colliculus (SC) in 14 cats, retrogradely labeled neurons were found in parts of all deep cerebellar nuclei. The present study demonstrated that there are three main origins of the cerebellotectal projections in regard to the locations ...

journal_title：Experimental brain research

authors： Hirai T,Onodera S,Kawamura K

更新日期：1982-01-01 00:00:00

abstract：:To investigate whether priming stimulation influences the responses of intracortical inhibitory and facilitatory motor circuits to a subsequent plasticity-inducing inhibitory theta burst TMS paradigm. Using standard transcranial magnetic stimulation (TMS) procedures, MEP amplitude, short-interval intracortical inhibit...

journal_title：Experimental brain research

authors： Doeltgen SH,Ridding MC

更新日期：2011-12-01 00:00:00

abstract：:The muscle activation patterns in anterior and posterior leg muscles were investigated with two types of perturbations to standing balance. Subjects stood with each foot on adjacent force platforms and performed arm flexion movements to shoulder height. Nine subjects performed ten repetitions unilaterally and bilatera...

journal_title：Experimental brain research

authors： Mochizuki G,Ivanova TD,Garland SJ

更新日期：2004-04-01 00:00:00

abstract：:Since normal human subjects can perform smooth-pursuit eye movements only in the presence of a moving target, the occurrence of these eye movements represents an ideal behavioural probe to monitor the successful processing of visual motion. It has been shown previously that subjects can execute smooth-pursuit eye move...

journal_title：Experimental brain research

authors： Lindner A,Ilg UJ

更新日期：2000-08-01 00:00:00

abstract：:Dispersed brain cells from 12-14 day old mouse embryos were loaded with the Ca2+-sensitive fluorescent probe, quin2 and shown to have a resting intracellular Ca2+ concentration ([Ca2+]i) of 158 nM (SE +/- 5) in the presence of 1 mM [Ca2+]o. When external [Ca2+] was raised from 0 to 1 mM there was an increase of [Ca2+]...

journal_title：Experimental brain research

authors： Morris ME,Friedlich JJ,MacDonald JF

更新日期：1987-01-01 00:00:00

abstract：:Previous research has shown that Parkinson's-disease (PD) patients produce irregular movement paths during a rapid arm pointing task. The aim of this study was to investigate the movement paths of PD patients during a prehensile action to objects requiring different levels of precision. Thus, we sought to determine if...

journal_title：Experimental brain research

authors： Alberts JL,Saling M,Adler CH,Stelmach GE

更新日期：2000-10-01 00:00:00

abstract：:Normal development of motor function was compared to that of cats with spinal transections at birth (newborn operates) or at approximately two weeks after birth (two week operates). Newborn operates expressed motor behavior not seen until sometime later in normal newborn cats, suggesting that this behavior is normally...

journal_title：Experimental brain research

authors： Robinson GA,Goldberger ME

更新日期：1986-01-01 00:00:00

abstract：:It is known that non-clinical subjects with high levels of schizotypal personality traits (High-S), as well as schizophrenic patients, have difficulties to judge how a scene would appear (so-called Appearance questions) from a point of view other than their own after having performed a disembodied perspective taking (...

journal_title：Experimental brain research

authors： Vastano R,Sulpizio V,Steinisch M,Comani S,Committeri G

更新日期：2014-10-01 00:00:00

abstract：:Visual information regarding limb location can override proprioceptive information when there is conflict between the two-a phenomenon referred to as visual capture. In three experiments, we employed the "mirror illusion," in which the perceived location of one's hand is influenced by the visual information specified ...

journal_title：Experimental brain research

authors： Kunz BR,Creem-Regehr SH,Thompson WB

更新日期：2010-12-01 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 present study examined, in the superior colliculus (SC) of anaesthetised cats, the functional connectivity between superficial-layer neurones (SLNs) and tectoreticular neurones (TRNs: collicular output cells). TRNs were antidromically identified by electrical stimulation of the predorsal bundle. The auto- and cros...

journal_title：Experimental brain research

authors： Chabli A,Guitton D,Fortin S,Molotchnikoff S

更新日期：2000-03-01 00:00:00