Abstract:
:Microinjections of D,L homocysteic acid (DLH, 40 nmoles) made in the lateral PAG of the unanesthetized and paralyzed decerebrate cat evoked distinct patterns of extracranial and hindlimb blood flow. One pattern, evoked from the pretentorial part of the lateral PAG (A3.3-A2.5), consisted of an extracranial vasodilation associated with an iliac vasoconstriction. Another pattern, evoked from the subtentorial part of the lateral PAG (P0.2-P0.9), consisted of an extracranial vasoconstriction associated with an iliac vasodilation. Both patterns were associated with increased arterial blood pressure. These results indicate (i) that the PAG contains neurons regulating head and hindlimb vasculature, and (ii) that these neurons are viscerotopically organized, in the sense that different representations of the head and hindlimb are found at different rostrocaudal levels. The significance of the results is discussed in the context of our previous findings that different kinds of defense reactions are evoked from these same pretentorial and subtentorial PAG regions.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Carrive P,Bandler Rdoi
10.1007/BF00230972subject
Has Abstractpub_date
1991-01-01 00:00:00pages
599-606issue
3eissn
0014-4819issn
1432-1106journal_volume
84pub_type
杂志文章abstract::Experiments were done to investigate the role of glutamatergic systems in the median preoptic nucleus (MnPO) in the water ingestion induced by administration of angiotensin II (ANG II) in the subfornical organ (SFO) in the awake rat. Microdialysis methods were utilized to quantify the extracellular content of glutamat...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-019-05681-1
更新日期:2020-01-01 00:00:00
abstract::Enteric glia share morphological, biochemical, and functional properties with astrocytes. Thus, like astrocytes, transplantation of enteric glia into the central nervous system (CNS) might facilitate the development of the characteristics of the blood brain barrier (BBB) in endothelial cells. This study explored this ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-004-2119-3
更新日期:2005-03-01 00:00:00
abstract::Learning in perceptual tasks is typically highly specific to the trained stimulus parameters. However, can learning be specific to a stimulus parameter that is perceptually indistinguishable from another? We assessed this question using a perceived sound location task in which the perceived sound location was created ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-014-3863-7
更新日期:2014-06-01 00:00:00
abstract::We compared set-related premotor cortex activity in two conditional motor tasks. In both tasks, a rhesus monkey moved its forelimb to one of two possible targets on the basis of visuospatial instruction stimuli. One target was located to the left of the limb's starting position, the other to the right. In the directio...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00247578
更新日期:1988-01-01 00:00:00
abstract::Cells in cat's area 17 respond optimally if elongated contrasts are presented at a certain angle or orientation with respect to the retina, or to the visual field, respectively (Hubel and Wiesel, 1962). The preferred orientation and the range of orientation sensitivity of cells in close proximity to one another have b...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00234062
更新日期:1975-12-22 00:00:00
abstract::Coordination is often observed as body parts moving together. However, when producing force with multiple fingers, the optimal coordination is not to produce similar forces with each finger, but rather for each finger to correct mistakes of other fingers. In this study, we aim to determine whether and how this skill d...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-017-5093-2
更新日期:2017-12-01 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::The biceps femoris (BF) muscle is divided into three neuromuscular compartments defined by the innervation patterns of the main nerve branches (English and Weeks 1987). The goals of this study were i) to determine how different regions of the biceps femoris muscle are activated in the intact cat during a broad range o...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00229406
更新日期:1991-01-01 00:00:00
abstract::Spike trains of long duration were recorded from concurrently active pairs of motor units in the human masseter and tibialis anterior muscles. An innovative analysis technique was used to investigate functional coupling between the motoneurons by plotting the discharge frequency of one motor unit with respect to the f...
journal_title:Experimental brain research
pub_type: 临床试验,杂志文章
doi:10.1007/BF00228735
更新日期:1996-10-01 00:00:00
abstract::Prevention of testosterone aromatization in the female rat pups by perinatal treatment with 1,4,6 androstatriene-3,17-dione (ATD) induces an important defeminization as shown by a reduction of fluctuations of LH release after castration and estradiol implantation. The fact that, under our in vitro experimental conditi...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00340477
更新日期:1986-01-01 00:00:00
abstract::The repetition of muscle contractions is likely to generate fatigue which can provoke alterations of postural control. Regulatory mechanisms can be triggered to counteract these alterations. However, these mechanisms would occur only when fatigue is induced through voluntary (VOL) contractions and not with electricall...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-018-5418-9
更新日期:2019-02-01 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::The present study examined, in the superior colliculus (SC) of anaesthetised cats, the functional connectivity between superficial-layer neurones (SLNs) and tectoreticular neurones (TRNs: collicular output cells). TRNs were antidromically identified by electrical stimulation of the predorsal bundle. The auto- and cros...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s002219900263
更新日期:2000-03-01 00:00:00
abstract::In order to further our understanding of action-blindsight, four hemianopic patients suffering from visual field loss contralateral to a unilateral occipital lesion were compared to six healthy controls during a double task of verbally reported target detection and saccadic responses toward the target. Three oculomoto...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-013-3803-y
更新日期:2014-03-01 00:00:00
abstract::In rat barrel cortex, evoked potentials (EPs) to vibrissa stimulation can be divided into two distinct classes according to the relative contribution of their principal components. Our experiments support the notion that these components can be attributed to activation of two pyramidal cell populations: supra- and inf...
journal_title:Experimental brain research
pub_type: 杂志文章,评审
doi:10.1007/s002210050552
更新日期:1998-11-01 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::Autologous segments of peroneal nerve were implanted into the medulla of adult rats to induce axonal regeneration of central neurons axotomised during the grafting procedure. Grafts were inserted in the midline--where respiratory axons decussate--or laterally, either in the nucleus tractus solitarius or in the nucleus...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00228412
更新日期:1994-01-01 00:00:00
abstract::The presence of discrete events during an interval to be estimated generally causes a dilation of perceived duration (event-filling effect). Here, we investigated this phenomenon in the thermal modality using multi-seconds (19 s) innocuous cool stimuli that were either constant (continuous interval) or fluctuating to ...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-015-4537-9
更新日期:2016-04-01 00:00:00
abstract::Many vertebrates generate blinks as a component of saccadic gaze shifts. We investigated the nature of this linkage between saccades and blinking in normal humans. Activation of the orbicularis oculi, the lid closing muscle, EMG occurred with 97% of saccadic gaze shifts larger than 33 degrees. The blinks typically beg...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00227203
更新日期:1994-01-01 00:00:00
abstract::Upright stance has allowed for substantial flexibility in how the upper limbs interact with each other: the arms can be coordinated in alternating, synchronous, or asymmetric patterns. While synchronization is thought to be the default mode of coordination during bimanual movement, there is little evidence for any bil...
journal_title:Experimental brain research
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00221-011-2687-y
更新日期:2011-06-01 00:00:00
abstract::Bradykinin is an endogenous nonapeptide known to induce pain and hyperalgesia to heat and mechanical stimulation. Correspondingly, it excites nociceptors in various tissues and sensitizes them to heat, whereas sensitizing effect on the mechanical response of nociceptors is not well established. Protein kinase C and TR...
journal_title:Experimental brain research
pub_type: 杂志文章,评审
doi:10.1007/s00221-009-1814-5
更新日期:2009-06-01 00:00:00
abstract::Human gait is a complex process in the central nervous system that results from the integrity of various mechanisms, including different cortical and subcortical structures. In the present study, we investigated cortical activity during lower limb movement using EEG. Assisted by a dynamic tilt table, all subjects perf...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-010-2223-5
更新日期:2010-05-01 00:00:00
abstract::Electrical stimulation over the cerebellum is known to transiently suppress the contralateral motor cortex in humans. However, projections from the cerebellar nuclei to the primary motor cortex are disynaptic excitatory pathways through the ventral thalamus. In the present investigation we studied facilitatory effects...
journal_title:Experimental brain research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00221-004-1979-x
更新日期:2004-12-01 00:00:00
abstract::Normal development of motor function was compared to that of cats with spinal transections at birth (newborn operates) or at approximately two weeks after birth (two week operates). Newborn operates expressed motor behavior not seen until sometime later in normal newborn cats, suggesting that this behavior is normally...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00238857
更新日期:1986-01-01 00:00:00
abstract::The development of visual cell properties was studied in cortical Area 18 (A18) of normal (NRs) and dark-reared kittens (DRs), from 2 weeks of age to adulthood. In addition to the orientation selective (S) and non-selective (NS) cells, we describe a new type of non-selective cell with a peripheral zone (NSp), which co...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00247518
更新日期:1988-01-01 00:00:00
abstract::The cerebellum is known to participate in visually guided eye movements. The cerebellar uvula receives projections from pontine nuclei that have been implicated in visual motion processing and the generation of smooth pursuit. Single-unit and lesion studies were conducted to determine how the uvula might further proce...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00241368
更新日期:1996-06-01 00:00:00
abstract::We studied Fos expression in the central nociceptive pathways at different sedative levels in order to clarify the central mechanism of propofol's nociceptive action. Sprague-Dawley rats received propofol (PRO) or pentobarbital (PEN) and were divided into two groups with different doses of drug administration (light a...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-006-0779-x
更新日期:2007-05-01 00:00:00
abstract::The stronger anatomo-functional connections of the supplementary motor area (SMA), as compared with premotor area (PM), with regions of the limbic system, suggest that SMA could play a role in the control of movements triggered by visual stimuli with emotional content. We addressed this issue by analysing the modifica...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/s00221-002-1346-8
更新日期:2003-03-01 00:00:00
abstract::The response characteristics of mechanoreceptive neurons (RA, SA, and PC) innervating the foot pad of cat were determined in the cuneate nucleus. The mechanical stimuli were single sinusoidal pulses of varying frequency (20, 60, 150, and 240 Hz), and vibratory trains of varying frequency (80 and 240 Hz) and duration (...
journal_title:Experimental brain research
pub_type: 杂志文章
doi:10.1007/BF00236027
更新日期:1986-01-01 00:00:00
abstract::In 1995, an aftereffect following treadmill running was described, in which people would inadvertently advance when attempting to run in place on solid ground with their eyes closed. Although originally induced from treadmill running, the running-in-place after-effect is argued here to result from the absence of senso...
journal_title:Experimental brain research
pub_type: 临床试验,杂志文章
doi:10.1007/s002210050769
更新日期:1999-07-01 00:00:00