Abstract：
:Eye and head movements in the horizontal, frontal and sagittal planes were recorded in the rabbit with a newly developed technique using dual scleral search coils in a rotating magnetic field. The compensatory eye movements elicited by passive sinusoidal oscillation deteriorated for frequencies below 0.1 Hz in the horizontal, but not in the frontal and sagittal planes. In the light gain was relatively independent of frequency in all planes and amounted to 0.82-0.69, 0.92-0.83 and 0.65-0.59 in the horizontal, frontal and sagittal plane, respectively. In freely moving animals, similar input-output relations were found. The stability of the retinal image thus proved to be inversely proportional to the amount of head movements associated with behavioural activity. Maximal retinal image velocities varied between 2-4 degree/s for a rabbit sitting quietly and 30-40 degrees/s during locomotor activity. Gaze displacements showed different characteristics in the various planes, possibly in relation with the structure of the retinal visual streak. Horizontal gaze changes were mainly effected by saccades. Gaze changes in the frontal plane were relatively rare and effected by non-saccadic, combined head and eye movements with temporary suppression of compensatory eye movements. Eye rotations in the sagittal plane, possibly functioning to adjust the direction of binocular vision vertically, were abundant and effected by large head movements in combination with a low gain of compensatory eye movements in this plane.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Van der Steen J,Collewijn Hdoi
10.1007/BF00236282subject
Has Abstractpub_date
1984-01-01 00:00:00pages
263-74issue
2eissn
0014-4819issn
1432-1106journal_volume
56pub_type
杂志文章abstract：:Hand muscle reflexes following muscle stretch and electrical nerve stimulation show a typical pattern consisting of short- and long-latency reflexes. The present investigation was designed to test reflexes following pure cutaneous stimulation. Air puffs were delivered to the palmar tip and the nail bed of the first, s...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00242189
更新日期：1995-01-01 00:00:00
abstract：:Previous investigations have revealed that perceived spatial frequency of gratings rises as contrast is lowered. In order to account for this finding it has been postulated that the spatial frequency which produces the maximum response from cortical neurones decreases with contrast. We have examined this hypothesis by...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236862
更新日期：1986-01-01 00:00:00
abstract：:To investigate whether priming stimulation influences the responses of intracortical inhibitory and facilitatory motor circuits to a subsequent plasticity-inducing inhibitory theta burst TMS paradigm. Using standard transcranial magnetic stimulation (TMS) procedures, MEP amplitude, short-interval intracortical inhibit...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2886-6
更新日期：2011-12-01 00:00:00
abstract：:In this study, we sought to examine the effect of experimentally induced somatic pain on memory. Subjects heard a series of words and made categorization decisions in two different conditions. One condition included painful shocks administered just after presentation of some of the words; the other condition involved ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05534-x
更新日期：2019-07-01 00:00:00
abstract：:This study investigated whether the execution of an accurate pointing response depends on a prior saccade orientation towards the target, independent of the vision of the limb. A comparison was made between the accuracy of sequential responses (in which the starting position of the hand is known and the eye centred on...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/BF00228987
更新日期：1994-01-01 00:00:00
abstract：:Conspicuous nerve-cell assemblies, identified as the marginal nuclei described in other sauropsidans, were found all along the spinal cord of turtles. gamma-aminobutyric acid (GABA) and nitric oxide synthase (NOS) activities were colocalized within these neurons, which also reacted positively to reduced nicotinamide a...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050499
更新日期：1998-09-01 00:00:00
abstract：:Motor sequence learning is a process whereby a series of elementary movements is re-coded into an efficient representation for the entire sequence. Here we show that human subjects learn a visuomotor sequence by spontaneously chunking the elementary movements, while each chunk acts as a single memory unit. The subject...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1548-8
更新日期：2003-09-01 00:00:00
abstract：:During the course of an in vivo intracellular labeling study, a chandelier (axo-axonic) cell was completely filled with biocytin in the CA1 region of the hippocampus. Chandelier cells are known to provide GABAergic terminals exclusively to the axon initial segment of pyramidal cells. The lateral extent and laminar dis...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230934
更新日期：1992-01-01 00:00:00
abstract：:Extracellular unit recording was employed to study the axonal properties and efferent projections of antidromically identified neurons in the olfactory peduncle (OP) region of a primitive eutherian macrosmatic mammal, the south american armadillo (Chaetophractus vellerosus). Of 72 cells which satisfied the criteria fo...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00340490
更新日期：1986-01-01 00:00:00
abstract：:Dementia due to cerebral ischemic lesions is relatively common in the elderly. Since many of these lesions are probably caused by emboli, studying emboli-induced cerebral lesions in rabbits should, hopefully, provide information that is useful when searching for a means of preventing and treating vascular dementia in ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050622
更新日期：1999-01-01 00:00:00
abstract：:Stroke is one of the leading causes of mortality and morbidity in advanced countries of the world. Despite the fact that reactive oxygen and nitrogen species (ROS and RNS) are the by-products of normal metabolic processes and mediate important physiological processes, they can inflict damage to the cell if produced in...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-007-1050-9
更新日期：2007-09-01 00:00:00
abstract：:This study examined the hypothesis that the mirror reflection of one hand's movement directly influences motor output of the other (hidden) hand, during performance of bimanual drawing. A mirror was placed between the two hands during bimanual circle drawing, with one hand and its reflection visible and the other hand...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1831-3
更新日期：2004-07-01 00:00:00
abstract：:Even the simplest volitional movements must be precisely coordinated with anticipatory postural adjustments. Little is currently known about the neural networks that coordinate these adjustments in healthy adults. We measured brain activity prior to movement during a bimanual load-lifting task, designed to elicit anti...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2470-5
更新日期：2011-01-01 00:00:00
abstract：:It is known that arbitrary target accelerations along the horizontal generally are extrapolated much less accurately than target speed through a visual occlusion. The extent to which vertical accelerations can be extrapolated through an occlusion is much less understood. Here, we presented a virtual target rapidly des...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-2041-9
更新日期：2010-03-01 00:00:00
abstract：:We studied the circuitry between the utricular (UT) nerve and ventral neck motoneurons innervating the longus capitis (LC), a neck flexor muscle, in decerebrate cats. We recorded intracellularly from 63 LC (ipsilateral 37, contralateral 26) motoneurons in C1 and C2 segments. UT nerve stimulation evoked disynaptic, exc...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00233975
更新日期：1994-01-01 00:00:00
abstract：:The present study aimed to elucidate the distribution of ferric and ferrous iron in the hippocampus after kainate-induced neuronal injury. A modified Perl's or Turnbull's blue histochemical stain was used to demonstrate Fe3+ and Fe2+ respectively. Very light staining for iron was observed in the hippocampus, in normal...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-001-0971-y
更新日期：2002-03-01 00:00:00
abstract：:We studied the effects of fatigue, induced by a 60-s maximal isometric force production with the index finger, on multi-finger coordination and force production by the other fingers of the hand. Finger forces were measured during single- and multi-finger maximal voluntary force production (MVC) at two sites, the middl...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210100698
更新日期：2001-06-01 00:00:00
abstract：:Interactions from both inhibitory and excitatory interneurons are necessary components of cortical processing that contribute to the vast amount of motor actions executed by humans daily. As transcranial magnetic stimulation (TMS) over primary motor cortex is capable of activating corticospinal neurons trans-synaptica...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-020-05875-y
更新日期：2020-08-01 00:00:00
abstract：:Sudden stretch of active muscle typically results in two characteristic electromyographic responses: the short latency M1 and the long latency M2. The M1 response originates from the monosynaptic Ia afferent reflex pathway. The M2 response is less well understood and is likely a compound response to different afferent...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1647-7
更新日期：2009-03-01 00:00:00
abstract：:For an understanding of how various degrees of altered use (training, disuse) affect the properties of skeletal muscles, it is important to know how much they are used normally. The main aim of the present project was to produce such background knowledge for hindlimb muscles of the cat. In four adult female cats, each...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/pl00005701
更新日期：1997-06-01 00:00:00
abstract：:We recently argued that the specific compensation of spatial neglect by manipulating neck proprioceptive and vestibular input is due to a central "correction" of the disturbed neural transformation process converting the afferent input coordinates from the peripheral sensory organs into a central representation of ego...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231791
更新日期：1996-05-01 00:00:00
abstract：:Objective attempts to characterize postural control in subjects with cerebellar (Cb) pathology have focused primarily on sagittal plane responses to static standing, semi-dynamic standing, and platform perturbation. Repeated, dynamic, functional movement may provide a better opportunity to study the effects of ataxia ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002219900291
更新日期：2000-05-01 00:00:00
abstract：:A photographic technique was used to study the evolution of lateral head-tilt following hemilabyrinthectomy in adult cats. Animals were maintained post-operatively in normally lit conditions (LM cats), in total darkness (DM cats), or in stroboscopic light. In LM casts, the head tilt peaked at 45 degrees (with the lesi...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235707
更新日期：1977-06-27 00:00:00
abstract：:Single neuronal activities were recorded in the arm/trunk region of the postcentral gyrus in awake Japanese monkeys. A total of 1608 units were isolated from four hemispheres of two animals, and receptive fields (RFs) and submodalities were identified in 1162 units. Deep or skin submodality neurons were dominant in ar...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050574
更新日期：1998-12-01 00:00:00
abstract：:Electrophysiological methods were employed to study the axonal properties of the neurons of anterior olfactory nucleus (AON), transition zone (TZ), and rostral prepyriform cortex (RPPC) and their projections towards the ipsilateral and contralateral olfactory bulb (IOB, COB) in the rat. Of 91 antidromically driven cel...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237113
更新日期：1980-01-01 00:00:00
abstract：:Upper trunk bending movements were accompanied by opposite movements of the lower body segments. These axial kinematic synergies maintained equilibrium during the movement performance by stabilizing the center of gravity (CG), which shifted on average across all the subjects by 1 +/- 4 cm in the anteroposterior direct...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s002210050274
更新日期：1998-01-01 00:00:00
abstract：:A magnetic stimulus applied to the human scalp over the motor cortex causes a short latency contraction of contralateral limb muscles. This is presumed to result from the indirect excitation of corticospinal neurons with monosynaptic connections to motoneurons. The excitability of these cortical neurons can be estimat...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247369
更新日期：1989-01-01 00:00:00
abstract：:Ball-racket interactions were investigated in a task where participants propelled a ball rhythmically into the air. The study contrasted two ball-racket conditions: (1) an elastic impact where the ball was able to rebound due to the elasticity of the colliding objects and participants bounced the ball, and (2) a non-e...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1331-2
更新日期：2003-03-01 00:00:00
abstract：:Single cell activity was recorded from the putamen in rhesus monkeys (Macaca mulatta) performing limb movements made both with and without a preceding preparatory "set" concerning the impending direction of movement. The monkeys were trained to perform an elbow step-tracking task, each trial of which required the subj...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247293
更新日期：1987-01-01 00:00:00
abstract：:Motor-unit activity in m. biceps brachii during isometric flexion contractions has been compared with motor-unit activity during a) slow voluntary movements against constant or increasing preloads and b) flexion contractions while movements were imposed by a torque motor. Recruitment levels and firing frequency behavi...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228882
更新日期：1990-01-01 00:00:00
