Intra-cortical inhibition prevents simple cells from responding to textured visual patterns.

abstract：:Previous work has shown that motoneurone excitability is enhanced by a hyperpolarization of the membrane potential at which an action potential is initiated (V(th)) at the onset, and throughout brainstem-evoked fictive locomotion in the adult decerebrate cat and neonatal rat. Modeling work has suggested the modulation...

journal_title：Experimental brain research

authors： Power KE,Carlin KP,Fedirchuk B

更新日期：2012-03-01 00:00:00

abstract：:We have investigated the visual responses of 184 single units located in the superficial layers of the optic tectum (OT) of the decerebrate, paralysed pigeon. Visual responses were similar to those reported in non-decerebrate preparations; most units responded best to moving visual stimuli, 18% were directionally sele...

journal_title：Experimental brain research

authors： Knox PC,Whalley HC

更新日期：1997-10-01 00:00:00

abstract：:The microtubule associated tau protein becomes hyperphosphorylated in Alzheimer's disease (AD). While hyperphosphorylation promotes neurodegeneration, the cause and consequences of this abnormal modification are poorly understood. As impaired energy metabolism is an important hallmark of AD progression, we tested whet...

journal_title：Experimental brain research

authors： Ahmad W

更新日期：2018-11-01 00:00:00

abstract：:Cerebellar cell suspensions were prepared from normal mouse embryos and implanted into the cerebellum of Purkinje cell degeneration (pcd) mutant mice, which are characterized by a virtually complete degeneration of Purkinje cells between postnatal day (P) 17 and P45. The expression of immunoreactivity for PEP-19, a de...

journal_title：Experimental brain research

authors： Chang AC,Triarhou LC,Alyea CJ,Low WC,Ghetti B

更新日期：1989-01-01 00:00:00

abstract：:Short interval intracortical inhibition (SICI) is a common paired-pulse TMS technique that is used to measure GABAa-ergic inhibition in the cerebral motor cortex. However, inhibition evaluated with an interstimulus interval (ISI) between the TMS pulses of 2.5 ms has quite different properties from that seen at 1 ms. I...

journal_title：Experimental brain research

authors： Cengiz B,Murase N,Rothwell JC

更新日期：2013-03-01 00:00:00

abstract：:Perceived motion may be a stimulus for anticipatory slow eye movements. To test this possibility, the production of anticipatory slow eye movements in humans was studied using apparent motion stimuli. Short range apparent motion was produced with random dot stimuli and the anticipatory slow eye movements were isolated...

journal_title：Experimental brain research

authors： Boman DK,Hotson JR

更新日期：1989-01-01 00:00:00

abstract：:When we press an elevator button or pick up a coffee cup, different visual information is used to guide our reach and to form our conscious experience of these objects. But can the information guiding our hand be brought into awareness? The fact that we can see and feel our own hand in action suggests that it might be...

journal_title：Experimental brain research

authors： Chua R,Enns JT

更新日期：2005-03-01 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：:We investigated the role of additional perceptual information (finger touch) and additional mechanical support (hand grasp) on the anticipatory postural adjustments (APAs) associated with fast arm movements performed by standing subjects. The subjects performed fast, unilateral shoulder ante-flexion movements while st...

journal_title：Experimental brain research

authors： Slijper H,Latash M

更新日期：2000-11-01 00:00:00

abstract：:After partial (spared-root) or complete hindlimb deafferentation, locomotion and accurate limb placement during locomotion recover considerably. In the present study movement was studied during and after recovery to determine whether altered motor patterns could substitute for normal ones in the recovery of motor beha...

journal_title：Experimental brain research

authors： Goldberger ME

更新日期：1988-01-01 00:00:00

abstract：:Four experiments were performed with macaque monkeys (rhesus, Macaca mulatta, and cynomolgus, M. fascicularis). In experiment 1 six rhesus monkeys learned pre-operatively to perform delayed matching-to-sample, with complex naturalistic scenes as the stimulus material. Three of these monkeys then received bilateral abl...

journal_title：Experimental brain research

authors： Gaffan D

更新日期：1994-01-01 00:00:00

abstract：:In three monkeys made hemianopic by unilateral striate cortical ablation, in one normal monkey and in a human hemianope (GY), we measured reaction times to chromatic targets presented in the normal hemifield as a function of prior chromatic primes in the blind field. The first of our three tasks showed an unspecific p...

journal_title：Experimental brain research

authors： Cowey A,Stoerig P,Hodinott-Hill I

更新日期：2003-09-01 00:00:00

abstract：:Dopamine and somatostatin-14 (SRIF) were incubated with a membrane fraction of rat caudate-putamen (CP) tissue in an adenylate cyclase assay in order to examine the D-1-receptor coupled adenylate cyclase activity 5 days and 3 weeks after unilateral ablation of the left frontal and lateral cortex. Five days after decor...

journal_title：Experimental brain research

authors： Moser A,Reavill C,Liebetrau A,Jenner P,Marsden CD,Cramer H

更新日期：1987-01-01 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：:Neurons responding to deep or cutaneous stimuli are situated in different parts of the ventrobasal complex. Within the cutaneous region elongated clusters of cells with common place and modality properties project to single columns in the somatic sensory cortex. The present study sought to determine to what extent sin...

journal_title：Experimental brain research

authors： Rainey WT,Jones EG

更新日期：1983-01-01 00:00:00

abstract：:This paper reports on experiments in which the effect of disconnection of association fibres from Area 17/18 to the posterior suprasylvian cortex (PSSC) was investigated. In the control experiments, all neurons had large receptive fields in the central 5-10 degrees of the visual field without detailed retinotopy. In t...

journal_title：Experimental brain research

authors： Guedes R,Watanabe S,Creutzfeldt OD

更新日期：1983-01-01 00:00:00

abstract：:Microscopic illumination of two neighbouring photoreceptor cells within a single ommatidium induces a strong sequence-dependent response in a directionally selective, motion-sensitive neuron. The response is characterized by a strong facilitation in the preferred direction and a weaker inhibition in the reverse direct...

journal_title：Experimental brain research

authors： Riehle A,Franceschini N

更新日期：1984-01-01 00:00:00

abstract：:We previously described significant relationships between amplitude variations in slow brain potentials and timed between-press intervals (2.5 s). We suggested that these variations are neural traces of timing mechanisms. To determine which time processing stage is concerned, the current study examines whether these v...

journal_title：Experimental brain research

authors： Macar F,Vidal F

更新日期：2002-08-01 00:00:00

abstract：:Sensorimotor synchronization is hypothesized to arise through two different processes, associated with continuous or discontinuous rhythmic movements. This study investigated synchronization of continuous and discontinuous movements to different pacing signals (auditory or visual), pacing interval (500, 650, 800, 950 ...

journal_title：Experimental brain research

authors： Lorås H,Sigmundsson H,Talcott JB,Öhberg F,Stensdotter AK

更新日期：2012-08-01 00:00:00

abstract：:We investigated how neurons in the different motor areas of the frontal lobe reflect the movement dynamics, and how their neuronal activity undergoes plastic changes when monkeys adapt to perturbing forces (they learn new dynamics). Here we describe the results obtained in the dorsal premotor area (PMd) and ventral pr...

journal_title：Experimental brain research

authors： Xiao J,Padoa-Schioppa C,Bizzi E

更新日期：2006-01-01 00:00:00

abstract：:The amyloid precursor protein (APP) has a pivotal role in pathogenesis of Alzheimer's disease (AD) via its beta- and gamma-secretase-derived cleavage products--the A-beta peptides. An alternative processing pathway provided by the alpha-secretase prevents formation of those toxic peptides and gives rise to the neurotr...

journal_title：Experimental brain research

authors： Endres K,Fahrenholz F

更新日期：2012-04-01 00:00:00

abstract：:Movements of the dominant and nondominant hand have been claimed to differ with respect to how they take intersegmental dynamics into account. Consistent with this claim, movements of the dominant hand are hypothesized to better exploit the intrinsic limb dynamics, whereas movements of the nondominant hand are control...

journal_title：Experimental brain research

authors： Heuer H

更新日期：2007-04-01 00:00:00

abstract：:We recognize objects even when they are partially degraded by visual noise. Using monkeys performing a sequential delayed match-to-sample task, we studied the relation between the amount of visual noise (5, 10, 15, 20 or 25%) degrading the eight black and white stimuli used here, and the accuracy and speed with which ...

journal_title：Experimental brain research

authors： Shidara M,Richmond BJ

更新日期：2005-05-01 00:00:00

abstract：:Norepinephrine has been hypothesized to provide a learning and memory signal. Norepinephrine long-term potentiation of perforant path input to the dentate gyrus of the hippocampus provides a model for norepinephrine initiated memory processes. However, in vitro, the pairing of perforant path stimulation and norepineph...

journal_title：Experimental brain research

authors： Reid AT,Harley CW

更新日期：2010-01-01 00:00:00

abstract：:The aim of this study was to examine the post-exercise effects of fatiguing the wrist extensor muscles of a single arm on postural tremor and muscle activity in both arms. Previous research has shown that, for neurologically normal subjects, the tremor seen within a single limb segment is uncorrelated to that seen con...

journal_title：Experimental brain research

authors： Morrison S,Kavanagh J,Obst SJ,Irwin J,Haseler LJ

更新日期：2005-12-01 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：:It has long been assumed that the human central nervous system uses flexible combinations of several muscle synergies to effortlessly and efficiently control redundant movements. However, whether muscle synergies exist in the neural circuit remains controversial, and it is critical to examine the association between t...

journal_title：Experimental brain research

authors： Hagio S,Kouzaki M

更新日期：2015-06-01 00:00:00

abstract：:Quick detection of changes in the sensory environment is very important for survival, resulting in automatic shifts of attention to the event and the facilitation of subsequent processes to execute appropriate behaviors. The abrupt onset or offset of a sensory stimulus should also activate the neural network detecting...

journal_title：Experimental brain research

authors： Yamashiro K,Inui K,Otsuru N,Kida T,Akatsuka K,Kakigi R

更新日期：2008-09-01 00:00:00

abstract：:1. Individual neurons were recorded extracellularly in the precentral forelimb area of two monkeys trained to perform rapid, large amplitude flexion and extension movements of the contralateral forearm in response to auditory signals. Electromyographic (EMG) activity in the biceps/triceps muscles was recorded separate...

journal_title：Experimental brain research

authors： Doudet DJ,Gross C,Arluison M,Bioulac B

更新日期：1990-01-01 00:00:00

abstract：:Many studies have demonstrated attenuated verbal working memory (WM) under articulatory suppression. However, performance is not completely abolished, suggesting a less efficient, non-articulatory mechanism for the maintenance of verbal information. The neural causes for the reduced efficiency of such a putative compl...

journal_title：Experimental brain research

authors： Trapp S,Mueller K,Lepsien J,Krämer B,Gruber O

更新日期：2014-02-01 00:00:00