Abstract：
:The saccadic system has been traditionally regarded as two-dimensional (horizontal, vertical) and basically conjugate in the two eyes. However, saccades to disparate targets (e.g., targets in real three-dimensional space that are located in different directions and at different distances) are naturally disconjugate. We report here that memory-guided saccades to a disparate target flashed 1 s earlier become disconjugate following repeated trials. After 15 min of repetition, the disconjugacy persists even when the target to be remembered is no longer disparate. This suggests fast memory-based learning. Learning, however, fails to occur if, during the repetition trials, the memory delay is 2 s. These findings suggest that the saccadic system has access to a 3D representation of targets and is gifted with 3D short-term memory and learning capacity.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Kapoula Z,Bucci MP,Lavigne-Tomps F,Zamfirescu Fdoi
10.1007/s002210050529subject
Has Abstractpub_date
1998-10-01 00:00:00pages
413-23issue
4eissn
0014-4819issn
1432-1106journal_volume
122pub_type
临床试验,杂志文章abstract：:The purpose of this study was to test the principle of motor abundance, which has been hypothesized as the principle by which the central nervous system controls the excessive degrees of freedom of the human movements, in contrast to the traditional negative view of motor redundancy. This study investigated the change...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2486-x
更新日期：2011-02-01 00:00:00
abstract：:Intracellular recordings from thalamic neurons receiving cerebellar inputs were performed under urethane anesthesia in the rat. A total of 64 neurons were recorded intracellularly with micropipettes filled with 4% biocytin solution (dissolved in 0.5 M K-acetate), and cerebellar-induced EPSPs (CN-EPSPs), the membrane r...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231841
更新日期：1991-01-01 00:00:00
abstract：:The neuronal responsiveness to three-dimensional (3D) motion in cat posteromedial lateral suprasylvian (PMLS) cortex was studied using a computer-controlled, stereoscopic 3D graphic display capable of reproducing the major visual cues for natural 3D motion, including motion disparity, size, texture, and shading change...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050509
更新日期：1998-09-01 00:00:00
abstract：:The acuities of X-cells from the dorsal lateral geniculate nucleus (LGN) were measured in five cats raised with a convergent strabismus, surgically induced by tenotomy. The acuities of cells driven by the strabismic eye were not significantly different from the acuities of cells driven by the non-deviating eye over th...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00250595
更新日期：1988-01-01 00:00:00
abstract：:Peak grip aperture has often been used to quantify the influence of illusions on judgments of size for action. However, a larger peak grip aperture need not mean that the object looks larger. It could also mean that it was grasped more carefully. These two possibilities can be distinguished on the basis of the velocit...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0744-8
更新日期：2007-01-01 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
pub_type： 杂志文章
doi：10.1007/pl00005606
更新日期：1997-03-01 00:00:00
abstract：:The sense of agency is a profoundly important human experience and is strongly linked to volitional action. The importance of this experience is underscored by the fact that many neurological and psychiatric disorders are partially characterized by an abnormal sense of agency (e.g., schizophrenia, anxiety disorders, d...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3372-5
更新日期：2013-09-01 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
pub_type： 杂志文章
doi：10.1007/BF00235975
更新日期：1987-01-01 00:00:00
abstract：:Schizophrenia patients show impaired saccadic response switching, pointing to action control deficits at the level of response selection. Previous studies on healthy subjects suggested that response switch effects might decrease if the prior response is longer ago, reflecting a slow dissipation of the response program...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1871-9
更新日期：2009-07-01 00:00:00
abstract：:The Attention Network Test (ANT) is a frequently used computer-based tool for measuring the three attention networks (alerting, orienting, and executive control). We examined the psychometric properties of performance on a variant of the ANT, the Attention Network Test-Interaction (ANT-I) in healthy older adults (N = ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4493-4
更新日期：2016-03-01 00:00:00
abstract：:For 1 week, healthy human participants ( n=7) were devoid of normal vision by exposure to prism lenses that optically rotated their perceived world around the line of sight by 180 degrees. Adaptation to such prisms involved sustained and vigorous practice of the ability to redirect the unadapted efferent motor command...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1097-6
更新日期：2002-06-01 00:00:00
abstract：:A syntactic and a semantic task were performed by German-speaking healthy subjects and aphasics with lesions in the dominant left hemisphere. In both tasks, pictures of objects were presented that had to be classified by pressing buttons. The classification was into grammatical gender in the syntactic task (masculine ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210100794
更新日期：2001-09-01 00:00:00
abstract：:We applied vibration at various rates to the biceps tendon of a passive, restrained arm in normal human subjects and measured its effect on the perception of forearm position and the perception of forearm velocity. The disturbances of limb position perception and limb velocity perception depended on the vibration rate...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00269450
更新日期：1987-01-01 00:00:00
abstract：:In convergent strabismus (esotropia) the spatial asynchrony of the two eye inputs unbalances the interocular interactions, leading to the functional advantage of the nondeviated eye and the inhibition of the esotropic eye. It may be argued that the strabismic suppression, if it is the effect of inhibitory interactions...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1190-x
更新日期：2002-11-01 00:00:00
abstract：:In rat barrel cortex, evoked potentials (EPs) to vibrissa stimulation can be divided into two distinct classes according to the relative contribution of their principal components. Our experiments support the notion that these components can be attributed to activation of two pyramidal cell populations: supra- and inf...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s002210050552
更新日期：1998-11-01 00:00:00
abstract：:The electrophysiological responses of 162 tectal cells to computer-generated visual stimuli were extracellularly recorded from 24 homing pigeons before and after injecting either lidocaine or N-methyl-D-aspartate (NMDA) into the nucleus isthmi pars magnocellularis (Imc) or the nucleus isthmi pars parvocellularis (Ipc)...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231973
更新日期：1995-01-01 00:00:00
abstract：:A central network of neurones in the spinal cord has been shown to produce a rhythmic motor output similar to locomotion after suppression of all afferent inflow. The experiments were performed mainly in acute spinal cats (th. 12), which had received DOPA i.v. and the monoamine oxidase inhibitor Nialamide. In some pre...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235671
更新日期：1979-01-15 00:00:00
abstract：:The spatial frequency tuning and the contrast-response function of striate neurons in Siamese cats were investigated with drifting sinusoidal gratings of high contrast, and the results were compared to the data obtained in normally pigmented cats. The optimal spatial frequency of the tuning curves obtained from Siames...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236278
更新日期：1984-01-01 00:00:00
abstract：:After minimizing proprioceptive input from the legs by ischemia without degradation of muscle force and excluding visual stabilization by eye closure, a characteristic anterior-posterior postural sway around 1 Hz was observed in three normal subjects. This is similar to the instability seen in two tabes dorsalis patie...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237939
更新日期：1980-01-01 00:00:00
abstract：:Everyday actions can be characterized by whether they are freely chosen or commanded by external stimuli, and whether they produce pleasant or unpleasant outcomes. To assess how these aspects of actions affect the sense of agency, we asked participants to perform freely selected or instructed key presses which could p...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-017-5112-3
更新日期：2018-01-01 00:00:00
abstract：:We describe a new form of gamma-aminobutyric acid (GABA) -mediated regulation of the inactivation and of the recovery from inactivation of the L-type Ca2+ current (I(Ca)) in crayfish muscle. GABA (1 mM) was applied during a 2-min period and the peak I(Ca) was measured using two-electrode voltage-clamp recordings 30 mi...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210000445
更新日期：2000-09-01 00:00:00
abstract：:This paper presents ILGM (the Infant Learning to Grasp Model), the first computational model of infant grasp learning that is constrained by the infant motor development literature. By grasp learning we mean learning how to make motor plans in response to sensory stimuli such that open-loop execution of the plan leads...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1914-1
更新日期：2004-10-01 00:00:00
abstract：:Previous studies have demonstrated the importance of both kinesthetic and auditory feedback for control of voice fundamental frequency (F0). In the present study, a possible interaction between auditory feedback and kinesthetic feedback for control of voice F0 was tested by administering local anesthetic to the vocal ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1330-z
更新日期：2008-06-01 00:00:00
abstract：:The smooth-pursuit system uses retinal image-slip-velocity information of target motion to match eye velocity to actual target velocity. The caudal part of the frontal eye fields (FEF) contains neurons whose activity is related to direction and velocity of smooth-pursuit eye movements (pursuit neurons), and these neur...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1606-3
更新日期：2009-02-01 00:00:00
abstract：:Although a number of studies have demonstrated state-related dependence of auditory steady-state responses (ASSRs), the investigations assessing trait-related ASSR changes are limited. Five consistently identified major trait dimensions, also referred to as "big five" (Neuroticism, Extraversion, Openness, Agreeablenes...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4494-3
更新日期：2016-03-01 00:00:00
abstract：:Rats with unilateral or bilateral partial section of the fornix were impaired on an eight arm radial maze task. Neurochemical analysis of hippocampal tissue four weeks after the lesions revealed a 50% reduction of choline acetyltransferase (ChAT) activity. The cholinergic marker was correlated negatively with the numb...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229009
更新日期：1992-01-01 00:00:00
abstract：:Cortical migration defects are often associated with epilepsy. In mesial temporal lobe epilepsy (MTLE), granule cell dispersion (GCD), a migration defect of dentate granule cells, is frequently observed. Little is known how GCD develops and to which extent it contributes to the development of seizure activity. Since t...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-009-1948-5
更新日期：2010-01-01 00:00:00
abstract：:Movement sequences such as typing or tapping display important interactions among finger movements arising from anticipatory motion (preparing for upcoming events) and coupling (non-independence among fingers). We examined pianists' finger tapping for the influence of cognitive chunking processes and biomechanical cou...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0760-8
更新日期：2007-04-01 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
pub_type： 杂志文章
doi：10.1007/BF00237049
更新日期：1977-08-31 00:00:00
abstract：:The synRas transgenic mice express constitutively activated Valin12-Harvey Ras in postnatal neocortical pyramidal neurons. This leads to somatodendritic hypertrophy, higher densities of spines and synapses, and an enhancement of synaptic long-term potentiation associated with an increased glutamate receptor-mediated a...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1688-y
更新日期：2009-12-01 00:00:00
