Abstract：
:The egocentric localization of objects in extrapersonal space requires that the retinal and extraretinal signals specifying the gaze direction be simultaneously processed. The question as to whether the extraretinal signal is of central or peripheral origin is still a matter of controversy, however. Three experiments were carried out to investigate the following hypotheses: 1) that the proprioceptive feedback originating in eye and neck muscles might provide the CNS with some indication about the gaze direction; and 2) that the retinal and proprioceptive extraretinal inputs might be jointly processed depending on whether they are of monocular or binocular origin. Application of low amplitude mechanical vibrations to either the extraocular or neck muscles (or both) of a subject looking monocularly at a small luminous target in darkness resulted in an illusory movement of the target, the direction of which depended on which muscle was stimulated. A slow upward target displacement occurred on vibrating the eye inferior rectus or the neck sterno-cleido-mastoidus muscles, whereas a downward shift was induced when the dorsal neck muscles (trapezius and splenius) were vibrated. The extent of the perceptual effects reported by subjects was measured in an open-loop pointing task in which they were asked to point at the perceived position of the target. These results extend to visually-oriented behavior the role of extraocular and neck proprioceptive inputs previously described in the case of postural regulation, since they clearly show that these messages contribute to specifying the gaze direction. This suggests that the extraretinal signal might include a proprioceptive component.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Roll R,Velay JL,Roll JPdoi
10.1007/BF00229419subject
Has Abstractpub_date
1991-01-01 00:00:00pages
423-31issue
2eissn
0014-4819issn
1432-1106journal_volume
85pub_type
杂志文章abstract：:Parkinson's disease (PD) is a multifactorial disease with a complex etiology that results from genetic risk factors, environmental exposures and most likely a combination of both. Rodent models of parkinsonism aim to reproduce key pathogenic features of the syndrome including movement disorder induced by the progressi...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-006-0461-3
更新日期：2006-08-01 00:00:00
abstract：:This study employed neurophysiological methods to relate the condition of the corticospinal system with the voluntary control of lower-limb muscles in persons with motor-incomplete spinal cord injury. It consisted of two phases. In a group of ten healthy subjects, single and paired transcranial magnetic stimulation (T...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-2190-9
更新日期：2005-06-01 00:00:00
abstract：:The pharmacology of synaptic transmission was studied in slices of rat piriform cortex using the selective non-NMDA glutamate receptor antagonist 6.7-dinitroquinoxaline-2,3-dione (DNQX) and the selective NMDA receptor antagonist D-2-amino-5-phosphonopentanoate (D-AP5). DNQX produced a dose-dependent blockade of synapt...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231264
更新日期：1990-01-01 00:00:00
abstract：:Stellate cells within the ventral cochlear nucleus (VCN) are a diverse cell group that have been classified according to their size and morphology. Some of these stellate cell types constitute major projection neurones into the brainstem and directly into the inferior colliculus, while others are implicated in more lo...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1602-6
更新日期：2003-12-01 00:00:00
abstract：:The modification of the normal locomotor pattern of humans was investigated using a split-belt locomotion protocol (treadmill belt speeds of 4.5 km/h and 1.5 km/h for the right and left legs, respectively) and also by changing afferent input from the legs (30% reduction or increase in body weight by suspending subject...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s002210050262
更新日期：1998-01-01 00:00:00
abstract：:The anatomical pathway from the prepyriform cortex to the hippocampus in the cat was traced autoradiographically by means of anterograde transport of [3H] leucine. A direct projection from the prepyriform cortex to the lateral entorhinal area was confirmed in the cat: the termination of these fibers was largely confin...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236644
更新日期：1980-02-01 00:00:00
abstract：:We examined modulation of transmission of short-latency excitation produced by distal hindlimb cutaneous input, as well as fluctuations in motoneuron membrane potential and input resistance, in flexor digitorum longus (FDL) motoneurons during fictive locomotion. Fictive stepping was induced in unaesthetized, decerebra...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00248749
更新日期：1988-01-01 00:00:00
abstract：:The coordination between eye and head movements during a rapid orienting gaze shift has been investigated mainly when subjects made horizontal movements towards visual targets with the eyes starting at the centre of the orbit. Under these conditions, it is difficult to identify the signals driving the two motor system...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/pl00005663
更新日期：1997-05-01 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：:When the head rotates, vestibulocollic reflexes counteract the rotation by causing contraction of the neck muscles that pull against the imposed motion. With voluntary head rotations, these same muscles contract and assist the movement of the head. The purpose of this study was to determine if an infinite variety of m...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF02259112
更新日期：1992-01-01 00:00:00
abstract：:In order to determine whether neurones in the parvicellular reticular formation are in direct synaptic contact with motoneurones innervating facial muscles, a combined retrograde and anterograde transport study was carried out in the rat. Animals received injections of the retrograde tracer cholera toxin B conjugated ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227336
更新日期：1994-01-01 00:00:00
abstract：:Stimulating electrodes were chronically implanted in the ventral hippocampal commissure and the entorhinal cortex or angular bundle of rats. Moveable metal microelectrodes which could be passed through the hippocampus were implanted. All hippocampal units were classified s complex-spike cells or theta cells on the bas...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238898
更新日期：1981-01-01 00:00:00
abstract：:In the thalamic reticular nucleus (TR) of the rat a cluster of neurons has been located which receives auditory inputs and acts as a source of inhibition for relay neurons of the medial geniculate nucleus (MG). These TR neurons (auditory thalamic reticular neurons; A-TR neurons) showed a repetitive burst of grouped di...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238784
更新日期：1983-01-01 00:00:00
abstract：:The present study used the redundant target paradigm on healthy subjects to investigate functional hemispheric asymmetries and interhemispheric cooperation in the perception of emotions from faces. In Experiment 1 participants responded to checkerboards presented either unilaterally to the left (LVF) or right visual h...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0279-4
更新日期：2006-05-01 00:00:00
abstract：:In three monkeys trained to finely grade grip force in a visuomotor step-tracking task, the effect of the context on neuronal force correlates was quantitatively assessed. Three trial types, which differed in force range, number, and direction of the force steps, were presented pseudo-randomly and cued with the color ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050827
更新日期：1999-09-01 00:00:00
abstract：:Excitation of dorsal neck motoneurones evoked by electrical stimulation of primary trigeminal afferents in the Gasserian ganglion has been investigated with intracellular recording from alpha-motoneurones in the cat. Single stimulation in the Gasserian ganglion ipsi- and contralateral to the recording side evoked exci...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227964
更新日期：1992-01-01 00:00:00
abstract：:The latency of eye movements is influenced by the fixation task; when the fixation stimulus is switched off before the target presentation (gap paradigm) the latency becomes short and express movements occur. In contrast, when the fixation stimulus remains on when the target appears (overlap paradigm), eye movement la...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-2214-0
更新日期：2005-07-01 00:00:00
abstract：:The distribution of anterogradely-labeled fibers and retrogradely-labeled cell bodies in the interpeduncular nucleus (IPN) was mapped after injections of wheat-germ agglutinin conjugated to horseradish peroxidase (WGA-HRP) into various structures of the basal forebrain in adult rats. WGA-HRP injections into the medial...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00279657
更新日期：1988-01-01 00:00:00
abstract：:The characteristics of vibration-induced illusory joint movements were studied in healthy human subjects. Unseen by the subject, constant frequency vibration trains applied to the distal tendon of the Triceps or Biceps induced an almost constant velocity illusory movement of the elbow whose direction corresponded to t...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239377
更新日期：1982-01-01 00:00:00
abstract：:This study investigated the effects of declined accommodation on reading performance in non-native and native languages. Eighteen native Japanese speakers participated: eight presbyopes and ten non-presbyopes. In the experiment, participants were asked to scan, or sequentially read six-word items presented in two-line...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05588-x
更新日期：2019-09-01 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：:We investigated the accuracy with which, in the absence of vision, one can reach again a 2D target location that had been previously identified by a guided movement. A robotic arm guided the participant's hand to a target (locating motion) and away from it (homing motion). Then, the participant pointed freely toward t...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1833-1
更新日期：2004-07-01 00:00:00
abstract：:At a descriptive level, prehension movements can be partitioned into three components ensuring, respectively, the transport of the arm to the vicinity of the target, the orientation of the hand according to object tilt, and the grasp itself. Several authors have suggested that this analytic description may be an opera...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228557
更新日期：1996-07-01 00:00:00
abstract：:Postural instability evokes cortical and autonomic reactions in addition to the primary compensatory response, and it is hypothesized that these responses may be related to underlying affective influences such as tonic physiological arousal. The purpose of this study was to determine whether perturbation-evoked cortic...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2257-8
更新日期：2010-06-01 00:00:00
abstract：:We studied the development of information-movement couplings in a ball-bouncing task with a special interest in how space- and time-related information is used by people of different ages. Participants from four age groups (children aged 7-8, 9-10 and 11-12 years, and adults) performed a virtual ball-bouncing task in ...
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：:The motor cortex contains a distributed map of muscles, with a single muscle represented over a wide cortical area. We have searched for inter-connections between distant sites projecting to common muscles by delivering pairs of 20-microA single-pulse intracortical microstimuli (ICMS) to sites separated by 1.5-2 mm in...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050585
更新日期：1998-12-01 00:00:00
abstract：:The present study was conducted to visualize the ultrastructural features of vestibular efferent boutons in the oyster toadfish, Opsanus tau. The crista ampullaris of the horizontal semicircular canal was processed for and examined by routine transmission electron microscopy. The results demonstrate that such boutons ...
journal_title：Experimental brain research
pub_type： 更正并重新发布的文章,杂志文章
doi：10.1007/s00221-004-1898-x
更新日期：2004-07-01 00:00:00
abstract：:Properties of otolith inputs to vestibulocerebellar neurons were investigated in 14 adult cats. In the vestibular nuclei, we recorded single-unit activities that responded orthodromically after stimulation of the utricular and/or saccular nerves and antidromically after stimulation of the cerebellum (uvula-nodulus and...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210000424
更新日期：2000-09-01 00:00:00
abstract：:This study was designed to determine how visual feedback mediates error corrections during reaching. We used visuomotor rotations to dissociate a cursor, representing finger position, from the actual finger location. We then extinguished cursor feedback at different distances from the start location to determine wheth...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1749-x
更新日期：2009-05-01 00:00:00
abstract：:How are multiple, multi-sensory stimuli combined for use in segmenting spatio-temporal events? For an answer, we measured the effect of various auditory or visual stimuli, in isolation or in combination, on a bistable percept of visual motion ("bouncing" vs. "streaming"). To minimize individual differences, the physic...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-0897-0
更新日期：2007-07-01 00:00:00
