Sensory and affective aspects of pain perception: is medial thalamus restricted to emotional issues?

abstract：:Depending on individual lesion location and extent, reorganization of the human motor system has been observed with a high interindividual variability. In addition, variability of forces exerted, of motor effort, and of movement strategies complicates the interpretation of functional imaging studies. We hypothesize th...

journal_title：Experimental brain research

authors： Konrad C,Henningsen H,Bremer J,Mock B,Deppe M,Buchinger C,Turski P,Knecht S,Brooks B

更新日期：2002-03-01 00:00:00

abstract：:Aiming movements of the upper limbs can be classified either as discrete, or reciprocal, or cyclic. The control of these movements after a stroke can be affected. The aim of this experimental, cross-sectional study was to characterize the performance of these movements after the right and left hemisphere chronic strok...

journal_title：Experimental brain research

authors： Carvalho DB,Freitas SMSF,Alencar FAD,Silva ML,Alouche SR

更新日期：2020-10-01 00:00:00

abstract：:The objectives of this study were to determine whether changes in electromyographic (EMG) responses observed during prolonged intracortical microstimulation (ICMS) were due to local plasticity of the motor system or to global changes in the preparation. Local effects would be expressed as changes only along the activa...

journal_title：Experimental brain research

authors： Gu X,Fortier PA

更新日期：1996-02-01 00:00:00

abstract：:The main aim of the present study was to explore, by means of high-density EEG, the intensity and the temporal pattern of event-related sensory-motor alpha desynchronization (ERD) during the observation of different types of hand motor acts and gestures. In particular, we aimed to investigate whether the sensory-motor...

journal_title：Experimental brain research

authors： Streltsova A,Berchio C,Gallese V,Umilta' MA

更新日期：2010-09-01 00:00:00

abstract：:Interlateral transfer of learning between the legs in body balance training is a topic of theoretical and practical interest, but it has been left untouched in previous research. In this investigation, we aimed to evaluate the magnitude and asymmetry of interlateral transfer of balance stability following the practice...

journal_title：Experimental brain research

authors： Marcori AJ,Teixeira LA,Mathias KR,Dascal JB,Okazaki VHA

更新日期：2020-12-01 00:00:00

abstract：:The effects of short-term, constant practice on the kinematics of a multi-joint pointing movement were studied in the hemiparetic arm of 20 chronic patients with unilateral left cerebro-vascular accident (CVA) and in 10 age- and sex-matched healthy individuals. Practice consisted of a single session of 70 pointing mov...

journal_title：Experimental brain research

authors： Cirstea MC,Ptito A,Levin MF

更新日期：2003-10-01 00:00:00

abstract：:A green button may be the target of a movement, or it may instruct the opening of an adjacent door. In the first case, its spatial configuration serves to guide the hand, whereas in the second case its colour allows a decision between alternative courses of action. This study contrasts these two categories of visuomot...

journal_title：Experimental brain research

authors： Toni I,Rushworth MF,Passingham RE

更新日期：2001-12-01 00:00:00

abstract：:Humans can skillfully recognize actions from others' body motion and make a judgment or response at once. Previous neuroimaging studies have mostly utilized diminished and brief human motion stimuli and indicated that human occipito-temporal cortex plays a critical role at biological motion recognition. It remains unc...

journal_title：Experimental brain research

authors： Ma F,Xu J,Li X,Wang P,Wang B,Liu B

更新日期：2018-03-01 00:00:00

abstract：:We tested the hypothesis that geniculate X cells are the neural substrate of psychophysically identified pattern channels and that geniculate Y cells are the neural substrate of psychophysically identified flicker channels. The hypothesis was tested by measuring the relative sensitivity of isolated X and Y cells in th...

journal_title：Experimental brain research

authors： Frascella J,Lehmkuhle S

更新日期：1984-01-01 00:00:00

abstract：:This review summarizes anatomical and electrophysiological observations related to corticovestibular interactions as a step toward understanding their possible functions. Vestibular information is represented in at least three distinct regions of the cerebral cortex in cats and monkeys: the parietal and somatosensory ...

journal_title：Experimental brain research

authors： Fukushima K

更新日期：1997-10-01 00:00:00

abstract：:Nine participants performed a reciprocal precision aiming task under different experimental conditions. Due to the anisotropy of the work space, varying the direction of motion (from 0 degrees to 315 degrees in steps of 45 degrees ) allowed exploration of the effects of biomechanical constraints that were found to aff...

journal_title：Experimental brain research

authors： Fernandez L,Bootsma RJ

更新日期：2004-12-01 00:00:00

abstract：:Although the perception of emotion in individuals is an important social skill, very little is known about how emotion is determined from a crowd of individuals. We investigated the perception of emotion in scenes of crowds populated by dynamic characters each expressing an emotion. Facial expressions were masked in t...

journal_title：Experimental brain research

authors： McHugh JE,McDonnell R,O'Sullivan C,Newell FN

更新日期：2010-07-01 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：:Intraparenchymal injections of the neurotoxin 6-hydroxydopamine (6-OHDA) into the medial forebrain bundle in rats destroys the dopaminergic neurons in the pars compacta of the substantia nigra. In other transmitter systems it has been found that axotomy or neurotoxin exposure produces an initial loss of neurotransmitt...

journal_title：Experimental brain research

authors： Bowenkamp KE,David D,Lapchak PL,Henry MA,Granholm AC,Hoffer BJ,Mahalik TJ

更新日期：1996-09-01 00:00:00

abstract：:Light touch of the index finger with a stationary surface at non-mechanically supportive force levels (<100 g) greatly attenuates the body sway of standing subjects. In three experiments, we evaluated the properties of finger contact and of the contacted object necessary to produce postural stabilization in subjects s...

journal_title：Experimental brain research

authors： Lackner JR,Rabin E,DiZio P

更新日期：2001-08-01 00:00:00

abstract：:Response time, or latency, is increasingly being used to provide information about neural decision processes. LATER (Linear Approach to Threshold with Ergodic Rate) is a quasi-Bayesian model of decision-making, with the additional feature that it introduces a degree of gratuitous randomisation into the decision proces...

journal_title：Experimental brain research

authors： Noorani I,Gao MJ,Pearson BC,Carpenter RH

更新日期：2011-04-01 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：:Mammalian muscle spindles show persistent after-effects following conditioning stretch or fusimotor stimulation. Most previous observations have been carried out on primary endings of spindles and using dynamic fusimotor stimulation. We report here observations on after-effects produced either by conditioning stretch ...

journal_title：Experimental brain research

authors： Proske U,Morgan DL

更新日期：1985-01-01 00:00:00

abstract：:An experiment using reciprocal arm and wrist aiming movements with an amplitude of 16(o) and target width of .5° (ID = 6) was conducted to determine the impact of adding external loads. We predicted that wrist and arm performance may be differentially impacted by the added mass. Participants were asked to flex/extend ...

journal_title：Experimental brain research

authors： Panzer S,Boyle JB,Shea CH

更新日期：2013-01-01 00:00:00

abstract：:We use a vibrotactile-delayed match-to-sample paradigm to evaluate the effects of interference on working memory. One of the suggested mechanisms through which interference affects performance in working memory is feature overwriting: Short-term representations are maintained in a finite set of feature units (such as ...

journal_title：Experimental brain research

authors： Bancroft T,Servos P

更新日期：2011-02-01 00:00:00

abstract：:5-Hydroxytryptamine (5-HT) has the most diverse set of receptors in comparison with any other neurotransmitter or hormone in the body. To date, seven families of 5-HT receptors have been characterized. A great number of studies have been published regarding the role of 5-HT and its receptors in seizures. However, with...

journal_title：Experimental brain research

authors： Gharedaghi MH,Seyedabadi M,Ghia JE,Dehpour AR,Rahimian R

更新日期：2014-02-01 00:00:00

abstract：:Many previous studies have demonstrated the existence of neurons with tremor-frequency activity ("tremor cells") in the thalamus of Parkinson's disease (PD) patients and these neurons are presumed to play a role in the pathogenesis of tremor. Since a major input to motor thalamus (Voa and Vop) is from the internal seg...

journal_title：Experimental brain research

authors： Hutchison WD,Lozano AM,Tasker RR,Lang AE,Dostrovsky JO

更新日期：1997-03-01 00:00:00

abstract：:Two components of long-term potentiation (LTP) are distinguished with extracellular recording electrodes: a synaptic and an EPSP-Spike (E-S) component. The latter consists of the enhancement produced in the population spike amplitude in excess of that predicted by EPSP potentiation alone. The experiments carried out i...

journal_title：Experimental brain research

authors： Chavez-Noriega LE,Halliwell JV,Bliss TV

更新日期：1990-01-01 00:00:00

abstract：:How are multiple, multi-sensory stimuli combined for use in segmenting spatio-temporal events? For an answer, we measured the effect of various auditory or visual stimuli, in isolation or in combination, on a bistable percept of visual motion ("bouncing" vs. "streaming"). To minimize individual differences, the physic...

journal_title：Experimental brain research

authors： Zhou F,Wong V,Sekuler R

更新日期：2007-07-01 00:00:00

abstract：:When walking with a hand-held object, grip force is coupled in an anticipatory manner to changes in inertial force resulting from the accelerations and decelerations of gait. However, it is not known how grip and inertial forces are organized at the onset of gait, and if the two forces are coupled in the early phases ...

journal_title：Experimental brain research

authors： Diermayr G,Gysin P,Hass CJ,Gordon AM

更新日期：2008-09-01 00:00:00

abstract：:We investigated the effect of different spatial and temporal parameters on the saccadic reaction times (SRTs) of the antisaccades and on the frequency and the SRTs of erratic prosaccades in five adult human subjects. The subjects were instructed to aim their saccades to the side opposite to where a visual go-stimulus ...

journal_title：Experimental brain research

authors： Fischer B,Weber H

更新日期：1997-09-01 00:00:00

abstract：:A total of ten alpha motor axons which innervated the peroneus brevis muscle were isolated in two cynomolgus monkeys. In each experiment, the isolated alpha axons were stimulated collectively to deplete glycogen from their muscle units. The muscle was then frozen quickly , cut serially, and stained for glycogen. Of th...

journal_title：Experimental brain research

authors： Murthy KS,Letbetter WD,Eidelberg E,Cameron WE,Petit J

更新日期：1982-01-01 00:00:00

abstract：:The superior colliculus has long been recognized as an important structure in the generation of saccadic displacements of the visual axis. Neurons with presaccadic activity encoding saccade vectors are topographically organized and form a "motor map." Recently, neurons with fixation-related activity have been recorded...

journal_title：Experimental brain research

authors： Paré M,Guitton D

更新日期：1994-01-01 00:00:00

abstract：:We used the framework of the uncontrolled manifold (UCM) hypothesis to analyze the structure of finger force variability in discrete (ramp) and oscillatory force production tasks performed by the index and middle fingers of the right hand acting in parallel. Subjects performed the tasks at fast and slow rates, with an...

journal_title：Experimental brain research

authors： Latash ML,Scholz JF,Danion F,Schöner G

更新日期：2002-10-01 00:00:00

abstract：:Research in the vestibular field has revealed the existence of a central process, called 'velocity storage', that is activated by both visual and vestibular rotation cues and is modified by gravity, but whose functional relevance during natural motion has often been questioned. In this review, we explore spatial orien...

journal_title：Experimental brain research

authors： Laurens J,Angelaki DE

更新日期：2011-05-01 00:00:00