Frames of reference and categorical and coordinate spatial relations: a hierarchical organisation.

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：:We investigated the quantitative relationship between saccadic activity (as reflected in frequency of occurrence and amplitude of saccades) and blood oxygenation level dependent (BOLD) changes in the cerebral cortex using functional magnetic resonance imaging (fMRI). Furthermore, we investigated quantitative changes i...

journal_title：Experimental brain research

authors： Kimmig H,Greenlee MW,Gondan M,Schira M,Kassubek J,Mergner T

更新日期：2001-11-01 00:00:00

abstract：:Patients with Parkinson's disease (PD) commonly exhibit difficulties performing simultaneous tasks and levodopa has been shown to improve the performance of these movements to a greater extent than movements performed in isolation. The aim of this study was to compare the effects of acute unilateral pallidal lesions (...

journal_title：Experimental brain research

authors： Levy R,Lang AE,Hutchison WD,Lozano AM,Dostrovsky JO

更新日期：2002-12-01 00:00:00

abstract：:In rats under alpha-chloralose or without general anesthesia the effect of a lateral olfactory tract stimulus on the caudate nucleus electric activity was explored by bipolar macroelectrodes. The stimulation effectiveness and the reactivity of recording sites to somatic stimuli were systematically tested. Under these ...

journal_title：Experimental brain research

authors： Orsini JC

更新日期：1977-08-31 00:00:00

abstract：:To elucidate hemispheric asymmetry in the neurophysiologic mechanisms of global and local information processing, we investigate high-density event-related potentials (ERPs) during divided and selective attention tasks based on detection of hierarchical letters whose spatial frequency is controlled. Twelve healthy mal...

journal_title：Experimental brain research

authors： Yoshida T,Yoshino A,Takahashi Y,Nomura S

更新日期：2007-08-01 00:00:00

abstract：:Hyper-gravity provides a unique environment to study how misperceptions impact control of orientation relative to gravity. Previous studies have found that static and dynamic roll tilts are perceptually overestimated in hyper-gravity. The current investigation quantifies how this influences control of orientation. We ...

journal_title：Experimental brain research

authors： Clark TK,Newman MC,Merfeld DM,Oman CM,Young LR

更新日期：2015-05-01 00:00:00

abstract：:The moment production by several fingers on a mechanically fixed vertically oriented handle was studied under the systematic variations of task parameters such as (a) moment magnitude (1.0 Nm and 2.0 Nm) and (b) direction of moment production (into pronation and supination), as well as (c) vertical position of the han...

journal_title：Experimental brain research

authors： Shim JK,Latash ML,Zatsiorsky VM

更新日期：2004-08-01 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：: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：:Previous studies in our laboratory examining pointing and reach-to-grasp movements of Parkinson's disease patients (PDPs) have found that PDPs exhibit specific deficits in movement coordination and in the sensorimotor transformations required to accurately guide movements. We have identified a particular difficulty in...

journal_title：Experimental brain research

authors： Schettino LF,Adamovich SV,Hening W,Tunik E,Sage J,Poizner H

更新日期：2006-01-01 00:00:00

abstract：:The effects of bilateral focal cooling of dorsolateral thoracic spinal cord on segmental reflex pathways to the triceps surae muscles were assessed in decerebrate cats from the reflex forces produced by single shocks or trains of electrical stimuli applied to the ipsilateral caudal cutaneous sural and the contralatera...

journal_title：Experimental brain research

authors： Miller JF,Paul KD,Jiang B,Rymer WZ,Heckman CJ

更新日期：1995-01-01 00:00:00

abstract：:The distribution of synaptic zinc after short-term (up to 48 h) tactile deprivation of vibrissae was investigated in the barrel cortex of mice using histochemical staining. In adult mice, 12 h after trimming selected rows of vibrissae, an increase in zinc staining in the deprived barrels was observed. This increase wa...

journal_title：Experimental brain research

authors： Czupryn A,Skangiel-Kramska J

更新日期：2001-12-01 00:00:00

abstract：:The primary objective of this study was to explore why preischemic hypoglycemia, which restricts tissue acidosis during the ischemic insult, does not ameliorate cell damage incurred as a result of transient ischemia. The question arose whether hypoglycemia (plasma glucose concentration 2-3 mM) delays resumption of ext...

journal_title：Experimental brain research

authors： Li PA,Kristián T,Katsura K,Shamloo M,Siesjö BK

更新日期：1995-01-01 00:00:00

abstract：:Tetanus toxin (TeT) is an exotoxin and has a capacity for neuronal binding and internalization. In the present study, we compared changes in the immunoreactivities and protein levels of interleukin (IL-) 2 as a pro-inflammatory cytokine and IL-4 as an anti-inflammatory cytokine in the hippocampus proper (HP) and denta...

journal_title：Experimental brain research

authors： Yan BC,Park JH,Kim IH,Shin BN,Ahn JH,Yoo KY,Lee DS,Kim MJ,Kang IJ,Won MH

更新日期：2012-11-01 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：:A simple model of the vestibuloocular reflex and the optokinetic system was used to simulate recent data on visual and vestibular responses of neurons in the vestibular nucleus. Contrary to a previous interpretation, the results support the hypothesis that the optokinetic and semicircular canal signals are combined si...

journal_title：Experimental brain research

authors： Robinson DA

更新日期：1977-11-24 00:00:00

abstract：:Research has suggested that altering the perceived shape and size of the body image significantly affects perception of somatic events. The current study investigated how multisensory illusions applied to the body altered tactile perception using the somatic signal detection task. Thirty-one healthy volunteers were as...

journal_title：Experimental brain research

authors： Treshi-marie Perera A,Newport R,McKenzie KJ

更新日期：2015-11-01 00:00:00

abstract：:Force and electromyogram (EMG) responses of the medial gastrocnemius muscle were assessed during isometric contractions in 8 decerebrate cat preparations, before and after acute dorsal hemisection of the spinal cord at the T12 level. The measures derived included the relation between static force and mean rectified EM...

journal_title：Experimental brain research

authors： Blaschak MJ,Powers RK,Rymer WZ

更新日期：1988-01-01 00:00:00

abstract：:We recently demonstrated the existence of neurogenesis in the striatum of adult monkeys, but the number of striatal neurons generated under normal conditions was too small to establish their chemical phenotype. We therefore used brain-derived neurotrophic factor (BDNF), which promotes neuronal differentiation and surv...

journal_title：Experimental brain research

authors： Bédard A,Gravel C,Parent A

更新日期：2006-04-01 00:00:00

abstract：:Single neurons were recorded from the superficial layers of the superior colliculus of immobilized monkeys (Macaca mulatta and Macaca irus). Two main functional types of neurons were found. The neurons of the first type (Type I neurons) responded well to simple stationary and moving stimuli such as spots, bars or slit...

journal_title：Experimental brain research

authors： Rizzolatti G,Buchtel HA,Camarda R,Scandolara C

更新日期：1980-01-01 00:00:00

abstract：:The purpose of this study was to investigate the temporal relationship between presaccadic neuronal discharges in the frontal eye fields (FEF) and supplementary eye fields (SEF) and the initiation of saccadic eye movements in macaque. We utilized an analytical technique that could reliably identify periods of neuronal...

journal_title：Experimental brain research

authors： Hanes DP,Thompson KG,Schall JD

更新日期：1995-01-01 00:00:00

abstract：:As a functional measure of NMDA receptor effectiveness in kitten striate cortex, the uptake of 45Ca by visual cortical slices was measured after 2 minute bath applications of N-methyl-D-aspartate (NMDA). Significant Ca uptake occurred in response to 12.5-100 microM NMDA in slices prepared from visual cortex of normal ...

journal_title：Experimental brain research

authors： Feldman D,Sherin JE,Press WA,Bear MF

更新日期：1990-01-01 00:00:00

abstract：:Stair walking is a challenging locomotor task, and visual information about the steps is considered critical to safely walk up and down. Despite the importance of such visual inputs, there remains relatively little information on where gaze is directed during stair walking. The present study investigated the role of v...

journal_title：Experimental brain research

authors： Miyasike-daSilva V,Allard F,McIlroy WE

更新日期：2011-03-01 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：:The representation of the two eyes in striate cortex (V1) of Cebus monkeys was studied by electrophysiological single-unit recordings in normal animals and by morphometric analysis of the pattern of ocular dominance (OD) stripes, as revealed by cytochrome oxidase histochemistry in V1 flat-mounts of enucleated animals....

journal_title：Experimental brain research

authors： Rosa MG,Gattass R,Fiorani M Jr,Soares JG

更新日期：1992-01-01 00:00:00

abstract：:Control of velocity in rapid flexion movements of the interphalangeal joint of the thumb was investigated by examining movement trajectories and patterns of activity in the extensor pollicis longus (EPL) and flexor pollicis longus (FPL) muscles. Although velocity was controlled with considerable accuracy, it was not s...

journal_title：Experimental brain research

authors： Milner TE

更新日期：1986-01-01 00:00:00

abstract：:The purpose of this study was to determine whether the neuromuscular control of goal-directed movements is different for young and older adults with the upper and lower limbs. Twenty young (25.1 ± 3.9 years) and twenty older adults (71.5 ± 4.8 years) attempted to accurately match the displacement of their limb to a sp...

journal_title：Experimental brain research

authors： Kwon M,Chen YT,Fox EJ,Christou EA

更新日期：2014-06-01 00:00:00

abstract：:Classic experiments suggested that the midbrain reticular formation plays an important role in the induction and maintenance of high-frequency, low-amplitude activation of the electrocorticogram (ECoG). However, recent studies have shown that generalized activating systems are not restricted to the reticular formation...

journal_title：Experimental brain research

authors： Dringenberg HC,Yahia N,Cirasuolo J,McKee D,Kuo MC

更新日期：2004-02-01 00:00:00

abstract：:Recent anatomical and physiological studies have suggested that parts of the cingulate cortex are involved in the control of movement. These areas have been collectively termed the cingulate motor area (CMA). Currently almost nothing is known, however, about how neurons in the CMA actually participate in the control o...

journal_title：Experimental brain research

authors： Backus DA,Ye S,Russo GS,Crutcher MD

更新日期：2001-09-01 00:00:00

abstract：:Recordings were made in the peroneal nerve of healthy volunteer subjects from C-mechano-heat (CMH) nociceptors (n=25) with their receptive fields in the skin on the dorsum of the foot. The investigation focused on afferent single C-fiber activity induced by short (200 ms) high-intensity argon-laser light pulses projec...

journal_title：Experimental brain research

authors： Olausson B

更新日期：1998-09-01 00:00:00