Abstract：
:Extracellular recordings were performed from turtle red nucleus neurons to examine their responsiveness to peripheral somatic stimulation and to study differences between rubral sensory and movement-related responses. In pentobarbital sodium-anesthetized or decerebrate turtles, red nucleus neurons could be divided into two categories based on their response characteristics. The first group, which included 87% of neurons studied, had low spontaneous rates of activity and responded with excitation to electrical stimulation of the spinal cord or the cerebellum, or during active movement of the contralateral limbs. Neurons in this category were likely to be rubrospinal cells. The remaining 13% of cells studied had higher rates of spontaneous discharge and were inhibited by electrical stimulation or during active movement. These cells might be rubral GABAergic interneurons. Single red nucleus neurons responded with excitation and/or inhibition to somatosensory stimulation. Unlike the motor fields, which were restricted to a single contralateral limb, red nucleus sensory receptive fields were wide and often bilaterally distributed. Rubral responsiveness to sensory stimulation was found to be significantly diminished during active limb movements, thereby suggesting that sensory inputs to the red nucleus are not used for the on-line modification of motor commands. Inactivation of the cerebellar cortex enhanced the sensory responsiveness of rubral neurons and expanded the size of red nucleus receptive fields. These results suggest that the red nucleus receives substantial sensory input, and that the cerebellar cortex can modify the flow of sensory information to the red nucleus.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Sarrafizadeh R,Keifer J,Houk JCdoi
10.1007/BF00242899subject
Has Abstractpub_date
1996-02-01 00:00:00pages
1-17issue
1eissn
0014-4819issn
1432-1106journal_volume
108pub_type
杂志文章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：:We have previously reported that electrical stimulation in LC or NRM when tested on the activity of a multireceptive neurone in the spinal cord produced similar inhibitory actions. The present study aimed to define the pathways that mediate this descending inhibitory action in the spinal cord by pharmacological means ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237586
更新日期：1986-01-01 00:00:00
abstract：:A gradual increase in iron occurs in the lesioned hippocampus after neuronal injury induced by the excitotoxin kainate, and the present study was carried out to investigate whether this increase in iron might be associated with changes in expression of the iron binding protein, ferritin. An increase in ferritin immuno...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-2110-z
更新日期：2005-03-01 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：:Studies on motor learning typically present a constant adaptation stimulus, corresponding to the desired final adaptive state. Studies of the auditory and optokinetic systems provide compelling evidence that neural plasticity is enhanced when the error signal driving adaptation is instead adjusted gradually throughout...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1537-z
更新日期：2008-12-01 00:00:00
abstract：:The present study assessed changes in perceived heaviness of weights lifted by the thumb, index, ring and little fingers during anaesthesia of the "lifting" digit. Subjects (n = 19) lifted weights solely by flexion of the distal joint of the digit, using a bilateral weight-matching paradigm. Changes in perceived heavi...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050247
更新日期：1997-12-01 00:00:00
abstract：:The neuropeptide galanin (GAL) was injected intrathecally (i.t.) in decerebrate, spinalized, unanesthetized rats and its effect on the nocifensive flexor reflex was examined. The reflex, which was evoked by intense mechanical or thermal stimulation of the foot, was recorded from the ipsilateral hamstring muscles. I.t....
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00248760
更新日期：1988-01-01 00:00:00
abstract：:There are a number of studies concerning difference of postural control following left or right hemisphere lesions. Few studies, however, compare the role of the right and left hemisphere in learning new postural tasks. This study aimed to address this question. Twenty patients with hemiparesis after ischemic stroke i...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-2091-z
更新日期：2010-04-01 00:00:00
abstract：:The effect of Coriolis, cross-coupled stimulation on the vestibuloocular reflex and the elicitation of motion sickness depends on background gravitoinertial force level (DiZio et al. 1986, 1987; Graybiel et al. 1977; Lackner and Graybiel 1984, 1986). We have explored whether this response dependency is related to the ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00247597
更新日期：1988-01-01 00:00:00
abstract：:We investigated whether the control of movement of the left hand is more likely to involve the use of allocentric information than movements performed with the right hand. Previous studies (Gonzalez et al. in J Neurophys 95:3496-3501, 2006; De Grave et al. in Exp Br Res 193:421-427, 2009) have reported contradictory f...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3007-x
更新日期：2012-04-01 00:00:00
abstract：:We investigated the influence of gaze elevation on judging the possibility of passing under high obstacles during pitch body tilts, while stationary, in absence of allocentric cues. Specifically, we aimed at studying the influence of egocentric references upon geocentric judgements. Seated subjects, orientated at vari...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1589-0
更新日期：2009-02-01 00:00:00
abstract：:The integrity of the paramedian pontine reticular formation (PPRF) is necessary for the generation of rapid eye movements. The main saccade-related population is of the burst type with latencies between 0 and 40 ms preceding a saccade, and they can be divided into medium- and long-lead burst neurons. Burst neurons hav...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237155
更新日期：1983-01-01 00:00:00
abstract：:The results of this study show that the different receptive fields of multisensory neurons in the cortex of the cat anterior ectosylvian sulcus (AES) were in spatial register, and it is this register that determined the manner in which these neurons integrated multiple sensory stimuli. The functional properties of mul...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227844
更新日期：1992-01-01 00:00:00
abstract：:Supervised learning of different postural tasks in patients with lesions of the motor cortex or pyramidal system (poststroke hemiparesis: 20 patients), nigro-striatal system (Parkinson's disease: 33 patients) and cerebellum (spinocerebellar ataxia: 37 patients) was studied. A control group consisted of 13 healthy subj...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0096-9
更新日期：2006-01-01 00:00:00
abstract：:Mammalian muscle spindles show persistent after-effects following conditioning stretch or fusimotor stimulation. Most previous observations have been carried out on primary endings of spindles and using dynamic fusimotor stimulation. We report here observations on after-effects produced either by conditioning stretch ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237676
更新日期：1985-01-01 00:00:00
abstract：:We investigated how neurons in the different motor areas of the frontal lobe reflect the movement dynamics, and how their neuronal activity undergoes plastic changes when monkeys adapt to perturbing forces (they learn new dynamics). Here we describe the results obtained in the dorsal premotor area (PMd) and ventral pr...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0074-2
更新日期：2006-01-01 00:00:00
abstract：:Judgments on laterality of hand stimuli are faster and more accurate when dealing with one's own than others' hand, i.e. the self-advantage. This advantage seems to be related to activation of a sensorimotor mechanism while implicitly processing one's own hands, but not during explicit one's own hand recognition. Here...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4210-3
更新日期：2015-04-01 00:00:00
abstract：:The effects of intravenous doses (200 mug) of LSD on the activity of single neurones in the primary visual cortex have been studied in cats anaesthetized with urethane. Cells were stimulated with a bright bar of light moved over the receptive field, and orientation tuning was assessed quantitatively before and after a...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00234826
更新日期：1977-01-18 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：:Both vestibular and neck proprioceptive inputs contribute towards maintaining a walking trajectory. We investigated how aging alters neck proprioceptive and vestibular interaction for preserving equilibrium and spatial orientation during locomotion. Young and healthy elderly were exposed to two sensory manipulations a...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s00221-005-0182-z
更新日期：2005-12-01 00:00:00
abstract：:Supernumerary phantom limb (SPL) designates the experience of an illusory additional limb occurring after brain damage. Functional neuroimaging during SPL movements documented increased response in the ipsilesional supplementary motor area (SMA), premotor cortex (PMC), thalamus and caudate. This suggested that motor c...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-017-5044-y
更新日期：2017-10-01 00:00:00
abstract：:Current studies show that type II glucocorticoid receptor (GR) stimulation during recurring insulin-induced hypoglycemia (RIIH) results in diminished hypoglycemic activation of neurons in discrete CNS metabolic structures, namely the lateral hypothalamic area (LHA), hypothalamic paraventricular (PVH) and dorsomedial (...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0614-4
更新日期：2007-01-01 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：:Prior reports have described a transient and focal decline in transcranial magnetic stimulation (TMS)-induced motor evoked potential (MEP) amplitude following fatiguing motor tasks. However, the neurophysiological causes of this change in MEP amplitude are unknown. The aim of this study was to determine whether post-t...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2962-y
更新日期：2012-02-01 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：:In the present article, we summarize the recent progress on investigating the mechanism of corticofugal modulation on the auditory thalamus of mammals excluding the bat as it has a specialized auditory system. The article comprises: (1) a review of the anatomy and physiology of the auditory thalamus, and a discussion ...
journal_title：Experimental brain research
pub_type： 杂志文章,评审
doi：10.1007/s00221-003-1680-5
更新日期：2003-12-01 00:00:00
abstract：:It has previously been shown that unilateral ablation of the whole auditory cortex in the cat disrupts the precedence effect, and also interferes with the ability of the normal animal to discriminate in the Y-maze between a single sound on one side and a double sound consisting of a signal on both left and right sides...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237601
更新日期：1978-02-15 00:00:00
abstract：:In the context of an analysis concerning factors of importance for the relative contributions of recruitment and rate gradation of muscle force, the distribution of electrical excitability was analyzed for medial gastrocnemius (MG) motoneurones of rat and cat. The experimental data came from previously collected intra...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00232439
更新日期：1994-01-01 00:00:00
abstract：:Excitatory inputs to neurons in the Forel's field H (FFH) related to visually induced vertical saccades from the ipsilateral superior colliculus (SC) were investigated in chronically prepared alert cats. By stimulation of the deep or intermediate layer of the SC, upward augmenting neurons (ANs) and one long-lead downw...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230857
更新日期：1990-01-01 00:00:00
abstract：:In everyday life, we often use graphical interfaces where the visual space is mapped to the motor space with a visuomotor gain called the control display gain. One of the key objectives in the field of Human Computer Interaction is to design this control display gain so as to enhance users' performance. Although the c...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-020-05856-1
更新日期：2020-09-01 00:00:00
