Abstract：
:The spatial separation of the eyes in animals with overlapping visual fields means that parts of a three dimensional object project to slightly disparate retinal points in each eye. This disparity, once interpreted by the brain, is thought to be a sufficient condition for stereoperception. In the present experiment, stereopsis based on spatial disparity cues was evaluated in cats using Julesz random-dot stereograms before and after sections of the optic chiasm, the corpus callosum or both. Normal cats were able to solve the random-dot problem. Optic chiasm transection drastically diminished this ability, callosal section had little effect and combined lesions of these two structures abolished stereoperception. These results suggest that central stereopsis based on spatial disparity is mainly mediated by binocular cortical cells receiving their input via the ipsilateral and the through-the-chiasm contralateral thalamo-cortical pathways.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Lepore F,Ptito M,Lassonde Mdoi
10.1007/BF00239515subject
Has Abstractpub_date
1986-01-01 00:00:00pages
258-64issue
2eissn
0014-4819issn
1432-1106journal_volume
61pub_type
杂志文章abstract：:The firing patterns of alpha and gamma efferent fibres and of group I and group II afferent fibres innervating the gastrocnemius muscle were observed during spontaneous locomotor movements in the thalamic cat. Multi-unit discharges of each kind of fibre were obtained by electronic sorting of the action potentials from...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00340493
更新日期：1986-01-01 00:00:00
abstract：:Ideal grasping movements should maintain an appropriate probability of success, while controlling movement-related costs, in the presence of varying visual (and motor) uncertainty. It is often assumed that the probability of errors is managed by adjusting a margin for error in hand opening (e.g., opening the hand wide...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05489-z
更新日期：2019-04-01 00:00:00
abstract：:The total number of granule cells in the dentate gyrus was estimated in 17 male rats, four each aged 30, 120, and 200 days, and five aged 365 days. There is a substantial 35-43% linear increase between 1 month and 1 year. Two parameters of the granular layer are involved in the numerical change. First, total granular ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238626
更新日期：1982-01-01 00:00:00
abstract：:In anesthetized cats 251 cells within the cortical vestibular projection area, adjacent to the post-cruciate dimple, were analyzed as to their input characteristics employing extracellular recording techniques. The post cruciate dimple vestibular field, which is located in area 3a, has a high degree of convergence bet...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237688
更新日期：1975-01-01 00:00:00
abstract：:Inter-limb learning transfer (ILT) between the upper-limbs has been well documented, but no corresponding study of the lower limbs has been done. We investigated ILT in the lower limbs of subjects who learned to move a cursor toward targets within 800 ms using ankle movements: plantar/dorsi-flexion and inversion/evers...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1547-x
更新日期：2009-01-01 00:00:00
abstract：:Is it possible to learn to perform a motor sequence without awareness of the sequence? In two experiments, we presented participants with the most elementary sequence: an alternation between two options. We used a double-step pointing task in which the final position of the target alternated between two quite similar ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4566-z
更新日期：2016-06-01 00:00:00
abstract：:Multisensory integration is known to create a more robust and reliable perceptual representation of one's environment. Specifically, a congruent auditory input can make a visual stimulus more salient, consequently enhancing the visibility and detection of the visual target. However, it remains largely unknown whether ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4591-y
更新日期：2016-05-01 00:00:00
abstract：:Effects of electrical stimulation of the ipsilateral tooth pulp (TP) on C1 spinal neurons were determined in 33 anesthetized rats. One hundred and seven neurons responded to TP stimulation. In 10 rats, the activity of 18 C1 spinal neurons and the amplitude of a digastric electromyogram (dEMG, n = 10) increased proport...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050742
更新日期：1999-06-01 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
pub_type： 杂志文章
doi：10.1007/s00221-015-4392-8
更新日期：2016-05-01 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
pub_type： 杂志文章
doi：10.1007/s00221-019-05510-5
更新日期：2019-05-01 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：:Load perturbations were applied to the arm of human subjects under conditions where both limb segments (upper arm and forearm) were free to move. The perturbations consisted of pulses of torque 50 ms in duration and of pseudo-random sequences of such pulses. They were applied to either the forearm or the upper arm. Un...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237573
更新日期：1986-01-01 00:00:00
abstract：:The organisation of the human neuromuscular-skeletal system allows an extremely wide variety of actions to be performed, often with great dexterity. Adaptations associated with skill acquisition occur at all levels of the neuromuscular-skeletal system although all neural adaptations are inevitably constrained by the o...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0547-y
更新日期：2006-11-01 00:00:00
abstract：:In natural environments depth-related information has to be extracted very fast from binocular disparity even if cues are presented shortly. However, few studies used efMRI to study depth perception. We therefore analyzed extension and localization of activation evoked by depth-by-disparity stimuli that were displayed...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1844-z
更新日期：2009-07-01 00:00:00
abstract：:The development of the electromyogram (EMG) of tibialis anterior (TA) and medial gastrocnemius (GM) during locomotion was studied in normal rats from the onset of quadruped walking (postnatal day 10, P10) until P42. The objectives were to relate signal properties of the EMG and coordination of muscle activity to funct...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229036
更新日期：1993-01-01 00:00:00
abstract：:The cerebral representation of space depends on the integration of many different sensory inputs. The vestibular system provides one such input and its dysfunction can cause profound spatial disorientation. Using positron emission tomography (PET), we measured regional cerebral perfusion with various vestibular stimul...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/BF00241421
更新日期：1994-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4443-1
更新日期：2016-01-01 00:00:00
abstract：:Feedback about error or reward is regarded essential for aiding learners to acquire a perceptual-motor skill. Yet, when a task has redundancy and the mapping between execution and performance outcome is unknown, simple error feedback does not suffice in guiding the learner toward the optimal solutions. The present stu...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4251-7
更新日期：2015-06-01 00:00:00
abstract：:We investigated the effects of intracerebroventricular (i.c.v.) pertussis toxin upon the sensitivity of supraoptic oxytocin neurones to intravenous morphine (1-5000 micrograms/kg) in urethane-anaesthetized rats. The maximal inhibitory capacity of morphine was diminished by prior administration of pertussis toxin. Some...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230292
更新日期：1993-01-01 00:00:00
abstract：:Earlier studies have suggested an impairment in the attention and eye movement control of children with ADHD. An important phenomenon in the control of attentional shifts and eye movements is the inhibition of return (IOR), which states that our brain works in a way that prevents our attention from returning to a spat...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1362-8
更新日期：2003-03-01 00:00:00
abstract：:The uptake of tritiated gamma-aminobutyric acid (3H-GABA) in the oculomotor nucleus of the cat was studied, using light and electron microscopic examination of radioautograms after intracerebral in vivo administration of the amino-acid. A glial uptake by oligodendrocytes was seen together with a neuronal uptake of the...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239581
更新日期：1982-01-01 00:00:00
abstract：:Previous studies in our laboratory examining pointing and reach-to-grasp movements of Parkinson's disease patients (PDPs) have found that PDPs exhibit specific deficits in movement coordination and in the sensorimotor transformations required to accurately guide movements. We have identified a particular difficulty in...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s00221-005-0080-4
更新日期：2006-01-01 00:00:00
abstract：:In the present study, the sensitivity to sinusoidal linear accelerations in the plane of the utricular macula was tested in afferents. The head orientation relative to the translation axis was varied in order to determine the head position that elicited the maximal and minimal responses for each afferent. The response...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050219
更新日期：1997-11-01 00:00:00
abstract：:The gain of the vestibulo-ocular reflex (VOR) of intact pigmented rats was adaptively modified by training protocols that created a visual-vestibular conflict. For training, head restrained animals were oscillated on a turntable in front of an optokinetic pattern projected onto a cylindrical wall. The optokinetic patt...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230530
更新日期：1991-01-01 00:00:00
abstract：:Electrical activity of neurons in rat hypothalamic ventromedial nucleus was recorded in tissue slices, to investigate central neural mechanisms underlying reduction of food intake caused by TRH and its metabolite, cyclo(His-Pro) [cHP]. Application of TRH had two actions: stimulation of neuronal activity, which was des...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00269457
更新日期：1987-01-01 00:00:00
abstract：:Single unit recording from trained rhesus monkeys demonstrate that the activity of the prelunate cortex is enhanced when a visual stimulus becomes a target of saccadic eye movement. As a rule, the enhancement is spatially selective: it does not occur if the animal makes an eye movement away from, rather than towards t...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237333
更新日期：1981-01-01 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
pub_type： 杂志文章
doi：10.1007/s00221-003-1568-4
更新日期：2003-10-01 00:00:00
abstract：:Automatic postural responses of leg muscles to the sudden displacement of standing support were investigated under four different conditions of information given to subjects in advance. Results from three groups of subjects were compared: 6 normal subjects, 10 patients with cerebellar disease, and 9 patients with Park...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231777
更新日期：1991-01-01 00:00:00
abstract：:There is ample evidence that motor learning changes the function of perceptual systems. Previous studies examining the interactions between speech production and perception have shown that the discrimination of phonetic contrasts characterized by the difference in articulatory place features is altered following their...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05584-1
更新日期：2019-09-01 00:00:00
abstract：:Humans are known to show anticipatory adjustments in the grip force prior to a self-generated or predictable action or perturbation applied to a hand-held object. We investigated whether humans can also adjust covariation of individual finger forces (multi-finger synergies) prior to self-triggered perturbations. To ad...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0583-7
更新日期：2006-11-01 00:00:00
