Exposing sequence learning in a double-step task.

abstract：:Recent evidence suggests that brain injury can impair the ability to independently activate shoulder and elbow muscles. We hypothesized that if muscle activation patterns are constrained, then brain-injured subjects should not be able to accurately grade initial hand movement direction during reaching toward a broad r...

journal_title：Experimental brain research

authors： Reinkensmeyer DJ,McKenna Cole A,Kahn LE,Kamper DG

更新日期：2002-04-01 00:00:00

abstract：:Studies on motor learning typically present a constant adaptation stimulus, corresponding to the desired final adaptive state. Studies of the auditory and optokinetic systems provide compelling evidence that neural plasticity is enhanced when the error signal driving adaptation is instead adjusted gradually throughout...

journal_title：Experimental brain research

authors： Schubert MC,Della Santina CC,Shelhamer M

更新日期：2008-12-01 00:00:00

abstract：:Cells in cat's area 17 respond optimally if elongated contrasts are presented at a certain angle or orientation with respect to the retina, or to the visual field, respectively (Hubel and Wiesel, 1962). The preferred orientation and the range of orientation sensitivity of cells in close proximity to one another have b...

journal_title：Experimental brain research

authors： Albus K

更新日期：1975-12-22 00:00:00

abstract：:Early postnatal application of thyroid hormones to rats results in morphological changes in septum and hippocampus. Modulation in the expression of either neurotrophins and/or their receptors is postulated to be responsible for these effects. In the present study we tested whether thyroxine administration leads to cha...

journal_title：Experimental brain research

authors： Lüesse HG,Roskoden T,Linke R,Otten U,Heese K,Schwegler H

更新日期：1998-03-01 00:00:00

abstract：:Pieces of the developing cerebellar anlage were prepared from 13-15 day old rat embryos and transplanted to the cerebellar region of 5-7 and 13-14 day old rat pups. Approximately two months later, sections showed most grafts to consist of both cerebellar cortex, with a typical trilaminar organization, and white matter...

journal_title：Experimental brain research

authors： Björklund H,Bickford P,Dahl D,Hoffer B,Olson L

更新日期：1984-01-01 00:00:00

abstract：:A double-labelling anatomical strategy employing horseradish peroxidase and tritiated, enzymatically inactive horseradish peroxidase allowed simultaneous visualization of corticospinal neurones and cortical neurones projecting to the dorsal column nuclei in cats. By this approach it is shown that although most cortica...

journal_title：Experimental brain research

authors： Rustioni A,Hayes NL

更新日期：1981-01-01 00:00:00

abstract：:We investigated the contributions of lateral intracortical connections to the orientation tuning of area 17 cells using micro-iontophoresis of the inhibitory transmitter gamma-aminobutyric acid (GABA) to inactivate small cortical sites in the vicinity of a recorded cell. GABA was ejected from an array of micropipettes...

journal_title：Experimental brain research

authors： Eysel UT,Crook JM,Machemer HF

更新日期：1990-01-01 00:00:00

abstract：:We examined the control of postural stability in preparation to a discrete, quick whole-body sway toward a target and back to the initial position. Several predictions were tested based on the theory of control with referent body orientation and the notion of multi-muscle synergies stabilizing center of pressure (COP)...

journal_title：Experimental brain research

authors： Nardini AG,Freitas SMSF,Falaki A,Latash ML

更新日期：2019-05-01 00:00:00

abstract：:Alcohol exposure can reduce adult proliferation and/or neurogenesis, but its impact on the ultimate neurogenic precursors, neural stem cells (NSCs), has been poorly addressed. Accordingly, the impact of voluntary consumption of alcohol on NSCs in the subventricular zone (SVZ) of the lateral ventricle was examined in t...

journal_title：Experimental brain research

authors： Campbell JC,Stipcevic T,Flores RE,Perry C,Kippin TE

更新日期：2014-09-01 00:00:00

abstract：:This paper reports an investigation of the magnitude and timing of the stretch reflex over the full range of activation of flexor carpi radialis. While it is well established that the magnitude of the reflex increases with the level of muscle activation, there have been few studies of reflex magnitude above 50% of max...

journal_title：Experimental brain research

authors： Cathers I,O'Dwyer N,Neilson P

更新日期：2004-08-01 00:00:00

abstract：:Intradermal injection of capsaicin results in sensitization of spinothalamic tract cells to brushing and pressure applied to the cutaneous receptive field in anesthetized monkeys. A significant increase in background activity also occurs immediately after capsaicin injection that lasts for at least 2 h. A 40-50% decre...

journal_title：Experimental brain research

authors： Sluka KA,Rees H,Chen PS,Tsuruoka M,Willis WD

更新日期：1997-06-01 00:00:00

abstract：:The control of eye movements depends in part on subcortical motor centres. Gaze is often directed towards salient visual stimuli of our environment with no conscious voluntary commands. To further understand to what extent preprogrammed eye movements can be triggered subcortically, we carried out a study in normal vol...

journal_title：Experimental brain research

authors： Castellote JM,Kumru H,Queralt A,Valls-Solé J

更新日期：2007-02-01 00:00:00

abstract：:The response characteristics of mechanoreceptive neurons (RA, SA, and PC) innervating the foot pad of cat were determined in the cuneate nucleus. The mechanical stimuli were single sinusoidal pulses of varying frequency (20, 60, 150, and 240 Hz), and vibratory trains of varying frequency (80 and 240 Hz) and duration (...

journal_title：Experimental brain research

authors： Pertovaara A,Huopaniemi T,Tukeva T

更新日期：1986-01-01 00:00:00

abstract：:Volume conduction measurements were carried out the brachial biceps, tibialis anterior and deltoid, in normal human subjects. Attenuation constant K and time constant tau of the muscle tissue transfer function were measured, and the average electrode uptake area calculated for the three muscles. The average number of ...

journal_title：Experimental brain research

authors： Gath I,Stålberg E

更新日期：1981-01-01 00:00:00

abstract：:Many studies have reported that blind people compensate for their visual deficit by sharpening auditory processes. Here we compare the sensitivity to echo cues between blind and sighted subjects. In the first experiment, the blind subjects were more accurate than the sighted subjects in localizing an object on the bas...

journal_title：Experimental brain research

authors： Dufour A,Després O,Candas V

更新日期：2005-09-01 00:00:00

abstract：:Changes in the direction of the line of sight (gaze) allow successive sampling of the visual environment. Saccadic eye movements accomplish this goal when the head does not move. Medium-lead burst neurons (MLBs) in the paramedian pontine reticular formation (PPRF) discharge a high frequency burst of action potentials ...

journal_title：Experimental brain research

authors： Walton MM,Freedman EG

更新日期：2011-10-01 00:00:00

abstract：:Past studies of the kinematics of human prehension have shown that varying object size affects the maximum opening of the hand, while varying object distance affects the kinematic profile of the reaching limb. These data contributed to the formulation of a theory that the reaching and grasping components of human preh...

journal_title：Experimental brain research

authors： Jakobson LS,Goodale MA

更新日期：1991-01-01 00:00:00

abstract：:Extracellular recordings of neuronal activity made in the lumbosacral spinal segments of the anesthetized cat have disclosed the existence of a set of neurons in Rexed's laminae III-VI that discharged in a highly synchronized manner during the occurrence of spontaneous negative cord dorsum potentials (nCDPs) and respo...

journal_title：Experimental brain research

authors： Manjarrez E,Jiménez I,Rudomin P

更新日期：2003-02-01 00:00:00

abstract：:Reactive responses to balance perturbations have been shown to be improved by training. This investigation aimed to compare the effects of block and random training perturbation schedules on stability gains of compensatory arm and leg movements in response to unpredictable large-magnitude balance perturbations. Pertur...

journal_title：Experimental brain research

authors： Takazono PS,Ribeiro de Souza C,Ávila de Oliveira J,Coelho DB,Teixeira LA

更新日期：2020-05-01 00:00:00

abstract：:The smooth pursuit system moves the eyes in space accurately while compensating for visual inputs from the moving background and/or vestibular inputs during head movements. To understand the mechanisms underlying such interactions, we examined the influence of a stationary textured visual background on smooth pursuit ...

journal_title：Experimental brain research

authors： Takeichi N,Fukushima J,Kurkin S,Yamanobe T,Shinmei Y,Fukushima K

更新日期：2003-04-01 00:00:00

abstract：:The content of calcitonin gene-related peptide-like immunoreactivity (CGRP-LI) in motoneurons was studied in four motor pools supplying muscles in the rat hind limb subserving different types of motor activity. The motor pools were identified by retrograde labeling with horseradish peroxidase or fluorophore-conjugated...

journal_title：Experimental brain research

authors： Piehl F,Arvidsson U,Hökfelt T,Cullheim S

更新日期：1993-01-01 00:00:00

abstract：:The present study was conducted to visualize the ultrastructural features of vestibular efferent boutons in the oyster toadfish, Opsanus tau. The crista ampullaris of the horizontal semicircular canal was processed for and examined by routine transmission electron microscopy. The results demonstrate that such boutons ...

journal_title：Experimental brain research

authors： Holstein GR,Martinelli GP,Boyle R,Rabbitt RD,Highstein SM

更新日期：2004-07-01 00:00:00

abstract：:Our brain relies on neural mechanisms of selective attention and converging sensory processing to efficiently cope with rich and unceasing multisensory inputs. One prominent assumption holds that audio-visual synchrony can act as a strong attractor for spatial attention. Here, we tested for a similar effect of audio-v...

journal_title：Experimental brain research

authors： Keitel C,Müller MM

更新日期：2016-05-01 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：: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：:Selective lesions of the noradrenergic locus coeruleus (LC) system have recently been shown to aggravate both ischemic and epileptic brain damage. This study explores the possibility that the LC system also influences hypoglycemic brain injury. Bilateral 6-hydroxydopamine lesions of the LC projection to the forebrain ...

journal_title：Experimental brain research

authors： Lindvall O,Auer RN,Siesjö BK

更新日期：1988-01-01 00:00:00

abstract：:In cats the stretch responses of deafferented Ia afferent fibers from gastrocnemius muscle spindles were measured. The response properties were derived by correlating the action potentials to random mechanical stimuli applied to the gastrocnemius muscle. The muscle stretch consisted of band-limited, normally distribut...

journal_title：Experimental brain research

authors： Kröller J,Grüsser OJ,Weiss LR

更新日期：1985-01-01 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：:The habenulo-interpeduncular system of the rat constitutes an interesting model to address quantitatively problems related to synaptogenesis and to the interactions between neuronal populations after selective alteration of these elements during development. In the present study this has been achieved by experimentall...

journal_title：Experimental brain research

authors： Fasolo A,Virgili M,Panzica GC,Contestabile A

更新日期：1992-01-01 00:00:00

abstract：:Prevention of testosterone aromatization in the female rat pups by perinatal treatment with 1,4,6 androstatriene-3,17-dione (ATD) induces an important defeminization as shown by a reduction of fluctuations of LH release after castration and estradiol implantation. The fact that, under our in vitro experimental conditi...

journal_title：Experimental brain research

authors： Slama A,Gogan F,Sarrieau A,Vial M,Rostene W,Kordon C

更新日期：1986-01-01 00:00:00