Temporal factors in target selection with saccadic eye movements.

abstract：:The influence of radial (near-far) and vertical (upper-lower) dimensions on lateral visuo-spatial neglect was studied using two horizontal line-bisection tasks (one motor and one perceptual). A group of 15 patients with neglect and a group of 14 right-brain damaged patients without neglect were examined. This latter g...

journal_title：Experimental brain research

authors： Pitzalis S,Di Russo F,Spinelli D,Zoccolotti P

更新日期：2001-02-01 00:00:00

abstract：:The aim of this study was to determine whether vestibular information related to head acceleration is available for triggering postural responses to perturbations of stance in the freely-standing cat. Linear accelerations of the head were recorded during postural responses evoked by linear translations of the support ...

journal_title：Experimental brain research

authors： Inglis JT,Macpherson JM

更新日期：1991-01-01 00:00:00

abstract：:The activity of voltage-gated K(+) channels (Kv) can be dynamically modulated by several events, including neurotransmitter stimulated biochemical cascades mediated by G protein-coupled receptors such as 5-HT2 receptors (5-HT2Rs). Activation of 5-HT2A/CR inhibits the Shaker-like K(+) channels Kv1.1 and Kv1.2, and this...

journal_title：Experimental brain research

authors： D'Adamo MC,Servettini I,Guglielmi L,Di Matteo V,Di Maio R,Di Giovanni G,Pessia M

更新日期：2013-10-01 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：:The present review examines the experimental evidence supporting the existence of central mechanisms able to modulate the synaptic effectiveness of sensory fibers ending in the spinal cord of vertebrates. The first section covers work on the mode of operation and the synaptic mechanisms of presynaptic inhibition, in p...

journal_title：Experimental brain research

authors： Rudomin P,Schmidt RF

更新日期：1999-11-01 00:00:00

abstract：:Abstract. Although the contribution of binocular vision to reach-to-grasp movements has been extensively studied, it has been largely ignored in locomotion. The aim of these studies was to explore the role of binocular vision during the approach phase and step over the obstacle and the contribution of head movements t...

journal_title：Experimental brain research

authors： Patla AE,Niechwiej E,Racco V,Goodale MA

更新日期：2002-02-01 00:00:00

abstract：:The present study aimed at determining whether the observation of two functionally compatible artefacts, that is which potentially concur in achieving a specific function, automatically activates a motor programme of interaction between the two objects. To this purpose, an interference paradigm was used during which a...

journal_title：Experimental brain research

authors： De Stefani E,Innocenti A,Bernardi NF,Campione GC,Gentilucci M

更新日期：2012-05-01 00:00:00

abstract：:The efficacy of inhibitory and excitatory intracortical circuits acting on the representation of an intrinsic hand muscle in the primary motor cortex of both hemispheres was measured with paired transcranial magnetic stimuli in right-handed subjects. Both intracortical inhibition (measured with an interstimulus interv...

journal_title：Experimental brain research

authors： Hammond G,Faulkner D,Byrnes M,Mastaglia F,Thickbroom G

更新日期：2004-03-01 00:00:00

abstract：:The amyloid precursor protein (APP) is one of the key proteins in Alzheimer's disease (AD), as it is the precursor of amyloid β (Aβ) peptides accumulating in amyloid plaques. The processing of APP and the pathogenic features of especially Aβ oligomers have been analyzed in detail. Remarkably, there is accumulating evi...

journal_title：Experimental brain research

authors： Baumkötter F,Wagner K,Eggert S,Wild K,Kins S

更新日期：2012-04-01 00:00:00

abstract：:We studied the potential contribution of postsynaptic mechanisms to the depression of reflex excitability which occurs immediately after a voluntary release from tonic muscle contraction. The excitability of the Soleus (Sol) motor pool was tested at rest and after voluntary muscle relaxation. In both cases the Sol H-r...

journal_title：Experimental brain research

authors： Schieppati M,Crenna P

更新日期：1985-01-01 00:00:00

abstract：:Reaching movements made to targets during exposure to passive constant velocity rotation show significant endpoint errors. By contrast, reaching movements made during voluntary rotation of the torso are accurate. In both cases, as a consequence of the simultaneous motion of the arm and the torso, Coriolis forces are g...

journal_title：Experimental brain research

authors： Bortolami SB,Pigeon P,Dizio P,Lackner JR

更新日期：2008-06-01 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：:Previous findings from our laboratory have shown that the optic nerves of goldfish acclimated to different temperatures differ considerably in their glycerophospholipid composition. This paper describes changes in the morphology of the nerve with different acclimation and fixation temperatures. Optic nerves of 5 and 2...

journal_title：Experimental brain research

authors： Matheson DF,Roots BI

更新日期：1988-01-01 00:00:00

abstract：:In the base of each temporal lobe in 4 monkeys (Macaca fascicularis) we sectioned the pia mater in an antero-posterior line along the most medial part of the inferior temporal visual association cortex (area TE), lateral to the parahippocampal cortex. This pial section interrupts the blood flow in branches of the post...

journal_title：Experimental brain research

authors： Gaffan D,Lim C

更新日期：1991-01-01 00:00:00

abstract：:In an earlier posturographic investigation (Collins and De Luca 1993) it was proposed that open-loop and closed-loop control mechanisms are involved in the regulation of undisturbed, upright stance. In this study, stabilogram-diffusion analysis was used to examine how visual input affects the operational characteristi...

journal_title：Experimental brain research

authors： Collins JJ,De Luca CJ

更新日期：1995-01-01 00:00:00

abstract：:The fluorescent double-labeling technique has been used to determine whether the corticopontine and the corticotectal fibers in the cat are derived from two different sets of neurons or whether they are derived from branching neurons which distribute collaterals to the pontine grey and the colliculi. After unilateral ...

journal_title：Experimental brain research

authors： Keizer K,Kuypers HG,Ronday HK

更新日期：1987-01-01 00:00:00

abstract：:A number of perceptual and neurophysiological studies have investigated the effects of delivering unilateral versus bilateral tactile sensory stimulation. While a number of studies indicate that perceptual discrimination degrades with opposite-hand stimulation, there have been no reports that examined the digit specif...

journal_title：Experimental brain research

authors： Nguyen RH,Forshey TM,Holden JK,Francisco EM,Kirsch B,Favorov O,Tommerdahl M

更新日期：2014-11-01 00:00:00

abstract：PURPOSE:To examine the accuracy and latency of reflexive saccades to vibratory stimulation of the fingertips made by normal human subjects and to compare the findings to those of visually guided saccades. METHODS:Eye movements were recorded using infrared oculography. Stimuli were presented via an array of audiometric...

journal_title：Experimental brain research

authors： Sullivan A,Fitzmaurice K,Abel LA

更新日期：2004-02-01 00:00:00

abstract：:Navigation through complex environments requires a greater degree of control and attentional resources from the central nervous system to ensure postural stability and efficient goal completion as compared to quiet standing or unobstructed walking. Furthermore, when a cognitive task is also performed in a dual-task sc...

journal_title：Experimental brain research

authors： Worden TA,Vallis LA

更新日期：2016-02-01 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 aim of this study was to analyse the functional impairments caused by chronic median nerve compression at the wrist on hand sensation and manual skill. Hand function was assessed in 11 patients (8 women and 3 men) with severe carpal tunnel syndrome (CTS) and compared with that of an age- and sex-matched control gr...

journal_title：Experimental brain research

authors： Thonnard J,Saels P,Van den Bergh P,Lejeune T

更新日期：1999-09-01 00:00:00

abstract：:We examined the link between action planning and motor imagery in 6- and 8-year-old children. Action planning efficiency was assessed with a bar transport task. Motor imagery and visual imagery abilities were measured using a hand mental rotation task and a number (i.e., non-body stimuli) mental rotation task, respect...

journal_title：Experimental brain research

authors： Toussaint L,Tahej PK,Thibaut JP,Possamai CA,Badets A

更新日期：2013-11-01 00:00:00

abstract：:The aim of the study was to define the spike threshold changes in motoneurons during naturally evoked activation. Spike activity was evoked in the gastrocnemius-soleus motoneurons of decerebrate cats by controlled stretches of the homonymous muscles. The spike thresholds were defined by using the first derivative of t...

journal_title：Experimental brain research

authors： Kostyukov AI,Lytvynenko SV,Bulgakova NV,Gorkovenko AV

更新日期：2010-06-01 00:00:00

abstract：:The dorsal and ventral streams model of action and perception suggests that reaching to grasp a tool for use involves integrated operation of the two streams. Few attempts have been made to test the limits of this integration in normal subjects. Twenty normal subjects reached for tools or geometric objects which were ...

journal_title：Experimental brain research

authors： Sunderland A

更新日期：2013-06-01 00:00:00

abstract：:Adaptation of motor control to weightlessness was studied during a 7-day spaceflight. The maintenance of control of upright posture was examined during a voluntary raising movement of the arm and during the voluntary raising on tiptoe. In order to evaluate the contribution of visual cues, three types of visual situati...

journal_title：Experimental brain research

authors： Clément G,Gurfinkel VS,Lestienne F,Lipshits MI,Popov KE

更新日期：1984-01-01 00:00:00

abstract：:1. Intracellular recordings were made from 220 Phrenic Motoneurons (PM) in anaesthetized, spontaneously breathing cats, deafferented from C3 to C7, in order to look for somatic events related to the Recurrent Responses (RR) evoked in PM axons by repetitive stimulation of the phrenic nerve. RR appear sporadically at a ...

journal_title：Experimental brain research

authors： Khatib M,Hilaire G,Monteau R

更新日期：1989-01-01 00:00:00

abstract：:We investigated the effect of correlation in background noise on the ability of participants to detect a kinaesthetic target on the index fingers of their hands. Participants had to judge whether the target (a smoothed ramp with quarter-sine onset and offset), was on the left or right finger (experiments 1 and 2). The...

journal_title：Experimental brain research

authors： Roberts RD,Humphreys GW,Wing AM

更新日期：2005-08-01 00:00:00

abstract：:Wheat germ agglutinin-horseradish peroxidase (WGA-HRP) conjugate was injected into the lumbar or cervical spinal cord of adult cats in order to examine its usefulness as an anterograde tracer of long ascending spinal tracts. Heavily labeled fibers and terminal-like structures were found in restricted regions of the gr...

journal_title：Experimental brain research

authors： Robertson B,Grant G,Björkeland M

更新日期：1983-01-01 00:00:00

abstract：:A strong assumption shared by major theoretical approaches to cognition posits that the human cognitive system has a limited capacity for information processing. Evidence supporting this claim comes from the dual-task paradigm in which one cognitive system has to process two tasks simultaneously. In this study, we exa...

journal_title：Experimental brain research

authors： Liepelt R,Prinz W

更新日期：2011-06-01 00:00:00

abstract：:The modification of the normal locomotor pattern of humans was investigated using a split-belt locomotion protocol (treadmill belt speeds of 4.5 km/h and 1.5 km/h for the right and left legs, respectively) and also by changing afferent input from the legs (30% reduction or increase in body weight by suspending subject...

journal_title：Experimental brain research

authors： Jensen L,Prokop T,Dietz V

更新日期：1998-01-01 00:00:00