Abstract：
:This article investigated both the ability of naive human subjects to learn interval production, as well as the properties of learning generalization across modalities and interval durations that varied systematically from the over-trained interval. Human subjects trained on a 450-, 650-, or 850-ms single-interval production task, using auditory stimuli to define the intervals, showed a significant decrease in performance variability with intensive training. This learning generalized to the visual modality and to non-trained durations following a Gaussian transfer pattern. However, the learning carryover followed different rules, depending on the duration of the trained interval as follows: (1) the dispersion of the generalization curve increased as a function of the trained interval, (2) the generalization pattern was tilted to the right in the visual condition, and (3) the transfer magnitude for 650 ms was less prominent than for the other two intervals. These findings suggest the existence of neural circuits that are tuned to specific time lengths and that show different temporal processing properties depending on their preferred interval duration.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Bartolo R,Merchant Hdoi
10.1007/s00221-009-1895-1subject
Has Abstractpub_date
2009-07-01 00:00:00pages
91-100issue
1eissn
0014-4819issn
1432-1106journal_volume
197pub_type
杂志文章abstract：:It is an unresolved question whether the posture of single fingers relative to each other is represented in the brain within an external frame of reference. In two experiments, we investigated postural influences on the processing of tactile stimuli at fingers and hands. Healthy subjects received two simultaneous tact...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2396-y
更新日期：2010-09-01 00:00:00
abstract：:The distribution of the calcium-binding proteins calbindin D-28K and parvalbumin was examined in newborn and adult superior colliculus of cat and rhesus monkey using immunohistochemical techniques. In adult animals of both species, calbindin-immunoreactive neurons had a three-tiered arrangement: one band was present i...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-001-0908-5
更新日期：2001-12-01 00:00:00
abstract：:After a single adaptation session to prisms with gradually incremented shift magnitude, the prism adaptation aftereffect was measured by open loop mid-sagittal pointing (O) to a visual target without visual feedback. This aftereffect corresponded to the summation of the shift in proprioception, measured by straight ah...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0381-2
更新日期：2006-08-01 00:00:00
abstract：:The gain (ratio of eye velocity to head velocity) of the initial horizontal vestibulo-ocular reflex (VOR) was calculated in 12 normal subjects over 350 ms during impulsive, unpredictable whole body rotation under three conditions: (1) darkness; (2) visual enhancement of the VOR, while the subjects fixated a stationary...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/BF00239596
更新日期：1994-01-01 00:00:00
abstract：:This study examined hippocampal theta power during configural and non-configural tasks in rats. Experiment 1 compared hippocampal theta power during a negative patterning task (A+, B+, AB-) to a configural task and a simple discrimination task (A+, B-) as a non-configural task. The results showed that hippocampal thet...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3359-2
更新日期：2013-03-01 00:00:00
abstract：:A growing body of evidence suggests that the mode of movement selection is relevant for the readiness potential, namely, internal (or free) selection of movements is associated with increased readiness potential amplitudes compared to predetermined or externally guided selection. It is little acknowledged, however, th...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-020-05878-9
更新日期：2020-10-01 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
pub_type： 杂志文章
doi：10.1007/s00221-014-3958-1
更新日期：2014-09-01 00:00:00
abstract：:The developmental pattern of hippocampal mossy fiber (dentate granule cell axon) innervation to the pyramidal cell layer was examined with anterograde transport methods. Injection of 3H-leucine into the dentate gyrus on PN 1 resulted in labeling of the incipient stratum lucidum extending to, but not beyond, the CA3 re...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00248368
更新日期：1988-01-01 00:00:00
abstract：:Discrimination learning can cause improved and worsened ability to perceive differences. This subsequently affects how stimuli are associated with meanings and behaviors. Here, human listeners were trained with frequency-modulated (FM) tonal sweeps (500-1000 Hz) in a paradigm where one FM rate (8.29 octaves per second...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4866-3
更新日期：2017-04-01 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
pub_type： 杂志文章
doi：10.1007/s002210100877
更新日期：2001-12-01 00:00:00
abstract：:Percutaneous electrical stimulation of the motor cortex was used to activate rapidly conducting corticofugal pathways to human abdominal muscles. Following cortical stimulation the response latencies for the abdominal muscles were similar to those for limb muscles which are a similar distance from the motor cortex. Co...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228901
更新日期：1989-01-01 00:00:00
abstract：:We have reported previously that intracranial application of near-infrared light (NIr) reduces clinical signs and offers neuroprotection in a subacute MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) monkey model of Parkinson's disease. In this study, we explored whether NIr reduces the gliosis in this animal model...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4720-7
更新日期：2016-11-01 00:00:00
abstract：:Deficits in postural control are one of the hallmarks of disability in children with cerebral palsy (CP). Yet, much remains unknown regarding the etiology of postural deficits in these children. Here we evaluated postural control at a simplified task level by measuring head stability during quiet sitting while systema...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-2001-4
更新日期：2010-02-01 00:00:00
abstract：:Eye-hand coordination is geometrically complex. To compute the location of a visual target relative to the hand, the brain must consider every anatomical link in the chain from retinas to fingertips. Here we focus on the first three links, studying how the brain handles information about the angles of the two eyes and...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1523-4
更新日期：2003-09-01 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：: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
pub_type： 杂志文章
doi：10.1007/BF02259100
更新日期：1992-01-01 00:00:00
abstract：:The latencies of visually-evoked responses from X- and Y-type neurons of the cat's dorsal lateral geniculate nucleus were measured in a manner that takes account of the inherent variability of discharge in these cells. Latencies measured in this way vary from trial to trial in one cell (and also between cells) by tens...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235998
更新日期：1987-01-01 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
pub_type： 杂志文章
doi：10.1007/s00221-020-05930-8
更新日期：2020-12-01 00:00:00
abstract：:The neural activity in area 7a and the arm area of motor cortex was recorded while real or path-guided apparent motion stimuli were presented to behaving monkeys in the absence of a motor response. A smooth stimulus motion was produced in the real motion condition, whereas in the apparent motion condition five stimuli...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1664-5
更新日期：2004-02-01 00:00:00
abstract：:Using near infrared spectroscopy and repetitive transcranial magnetic stimulation (rTMS), we studied interhemispheric interactions between bilateral motor and sensory cortices in humans. RTMS consisted of a triple-pulse burst (50 Hz) repeated every 200 m for 2 s (10 bursts, 30 pulses); one kind of theta burst TMS (TBS...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-0884-5
更新日期：2007-07-01 00:00:00
abstract：:(1) The responses of CA1 pyramidal cells to short glutamate pulses (10-50 ms) delivered at sensitive spots in the apical dendrites have been analysed by intracellular recording. (2) The glutamate pulses elicited stable depolarizing responses in a dose- and frequency-dependent manner. (3) When a single action potential...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228178
更新日期：1992-01-01 00:00:00
abstract：:Standing and walking are very different tasks. It might be reasonable, therefore, to assume that the mechanisms used to maintain the stability of standing and walking should be quite different. However, many studies have shown that postural stability measures can generally predict risk of falls, even though most falls...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0224-6
更新日期：2006-06-01 00:00:00
abstract：:Horizontal DC-electrooculograms were recorded in subjects rotating on a horizontal turntable sinusoidally at 0.1 Hz and 35 to 40 degrees amplitude. The subjects either fixated a stroboscopically illuminated vertically striped pattern (1.15 to 3.45 degrees period) rotating with the turntable or initiated Sigma-OKN befo...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235311
更新日期：1985-01-01 00:00:00
abstract：:In order to study prehension in a reproducible manner, we trained monkeys to perform a task in which rectangular, spherical, and cylindrical objects were grasped, lifted, held, and lowered in response to visual cues. The animal's hand movements were monitored using digital video, together with simultaneously recorded ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050803
更新日期：1999-08-01 00:00:00
abstract：:In walking cats decerebrated at the premammillary level, single neurone activity of Purkinje cells (P-cells) with long corticofugal axons was recorded in the cerebellar vermis. The P-cells (N = 145) were identified as they showed spontaneous simple and complex spikes and also antidromic activation from Deiters' nucleu...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238886
更新日期：1981-01-01 00:00:00
abstract：:Eight rhesus monkeys (Macaca mulatta) were trained to detect an instantaneous lateral displacement of a small spot of light. The smallest movement for 79% correct performance was then determined. Severing the splenium of the corpus callosum, which has to be done to reveal the superior colliculi, had no effect on the m...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237444
更新日期：1984-01-01 00:00:00
abstract：:The information transmitted (Ti) by the direction of two-dimensional (2-D) isometric forces at different stereoscopic depths was studied in 50 naive human subjects using an isometric manipulandum and random dot stereograms generated in a color display (Massey et al. 1988). Subjects viewed the display through appropria...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231170
更新日期：1991-01-01 00:00:00
abstract：:Associations between cognitive and motor timing performance are documented in hundreds of studies. A core finding is a correlation of about - 0.3 to - 0.5 between psychometric intelligence and time interval production variability and reaction time, but the nature of the relationship remains unclear. Here, we investiga...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-020-05780-4
更新日期：2020-04-01 00:00:00
abstract：:Cortical spreading depression (CSD) is influenced by brain excitability and is related to neurological diseases, such as epilepsy. In vitro evidence indicates that neuronal electrical activity is potentiated after CSD. Malnutrition can cause electrophysiological changes in the brain, both in animals and in humans. Her...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2844-3
更新日期：2011-10-01 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
pub_type： 杂志文章
doi：10.1007/s00221-004-1848-7
更新日期：2004-08-01 00:00:00
