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 have predominantly spatially coded movement fields in the rostral PPRF, while in the caudal PPRF they increase their burst strength in temporal coding approximately in the pulling directions of extraocular eye muscles (i.e. almost horizontal or vertical). Both neuronal populations have ipsilateral on-directions and contain long-lead burst neurons. In a quantitative analysis the firing patterns of long-lead burst neurons are compared to those of medium-lead burst neurons, which form the predominant output of the saccadic pulse generator to the motoneurons. The firing patterns of temporally coded long-lead bursters are similar to those of medium-lead bursters, except for earlier on-latencies, larger statistical fluctuations, and specializations for small or large saccades in oblique directions. The spatially coded burst neurons form a motor map of saccadic vectors. The diameter of their movement field is often about the size of the saccade vector, and they encode saccadic onset and duration. These results are consistent with a model for visual saccades in eye displacement coordinates, where the spatio-temporal recording of horizontal eye movements is effected by long-lead burst neurons in the PPRF.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Hepp K,Henn Vdoi
10.1007/BF00237155subject
Has Abstractpub_date
1983-01-01 00:00:00pages
105-20issue
1eissn
0014-4819issn
1432-1106journal_volume
52pub_type
杂志文章abstract：:The organization of corticocortical connections in the representation of the forepaw in cat primary somatosensory cortex (SI) was studied following injections of various tracers into different cortical cytoarchitectonic areas. Small injections of horseradish peroxidase, wheat germ agglutinin-conjugated HRP, Phaseolus ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227839
更新日期：1992-01-01 00:00:00
abstract：:Retinal ganglion cells of adult cats have the potential to regenerate their axons into autografted peripheral nerve. Two months after transplantation of the sciatic nerve to the axotomized optic stump, regenerated axons were labeled anterogradely with biocytin, and myelin formation by Schwann cells was examined electr...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229107
更新日期：1994-01-01 00:00:00
abstract：:Accurate information about gaze direction is required to direct the hand towards visual objects in the environment. In the present experiments, we tested whether retinal inputs affect the accuracy with which healthy subjects indicate their gaze direction with the unseen index finger after voluntary saccadic eye moveme...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-002-1029-5
更新日期：2002-06-01 00:00:00
abstract：:The effects of electrical stimulation within the midbrain on fusimotor output to the jaw elevator muscles were studied in anaesthetized cats. Muscle spindle afferents recorded in the mesencephalic trigeminal nucleus were categorised as primary or secondary by their responses to succinylcholine during sinusoidal or ram...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227778
更新日期：1993-01-01 00:00:00
abstract：:The gain (ratio of eye velocity to head velocity) of the initial horizontal vestibulo-ocular reflex (VOR) was calculated in 12 normal subjects over 350 ms during impulsive, unpredictable whole body rotation under three conditions: (1) darkness; (2) visual enhancement of the VOR, while the subjects fixated a stationary...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/BF00239596
更新日期：1994-01-01 00:00:00
abstract：:Adequate postural control is a prerequisite for daily activities such as reaching for an object. However, knowledge on the relationship between postural adjustments and the quality of reaching movements during human ontogeny is scarce. Therefore we evaluated the development of the relationship between the kinematic fe...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-0964-6
更新日期：2007-08-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05492-4
更新日期：2019-05-01 00:00:00
abstract：:The parietal lobes contribute to body-space representation. The present work aims at characterizing the functional role of the inferior parietal lobe in body-space representation and at studying the different roles of the angular gyrus in the right and left hemisphere. We conducted three separate transcranial direct c...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-013-3538-9
更新日期：2013-07-01 00:00:00
abstract：:We explored digit coordination during the acceleration phase of a quick lifting movement of a hand-held horizontal object. We tested three hypotheses related to: (1) the scaling of mechanical variables produced by the hand with changes in the external load, torque, and moment of inertia; (2) changes in the safety marg...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3215-4
更新日期：2012-10-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237473
更新日期：1986-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239148
更新日期：1979-02-15 00:00:00
abstract：:Muscle activity patterns in some complex human jaw muscles appear to be task sensitive. However, it is presently uncertain how changes in motor task affect motor unit (MU) behaviour in the human temporalis muscle. In this study, activity was recorded from 40 MUs in the anterior region of the muscle. The lowest sustain...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230303
更新日期：1993-01-01 00:00:00
abstract：:The purpose of this study was to examine the effect of prior experience concerning direction of a postural perturbation on the balance response of cats to translations of their support surface. Previous work has shown that, when cats are translated in many directions in the horizontal plane, they respond by exerting a...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00227333
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/s00221-018-5384-2
更新日期：2018-12-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0057-3
更新日期：2005-12-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0387-9
更新日期：2006-08-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2703-2
更新日期：2011-06-01 00:00:00
abstract：:Saccade characteristics in response to moving and stationary targets were studied in three monkeys (Macaca mulatta) that had been trained to look at a target, which after an initial jump either remained in place or moved forward or backward with constant velocity (10 degrees /s). Eye movements were recorded using a se...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-2070-3
更新日期：2005-02-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2947-x
更新日期：2012-02-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-0189-5
更新日期：2006-03-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章,评审
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更新日期：2009-06-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237322
更新日期：1976-05-10 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2396-y
更新日期：2010-09-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-013-3460-1
更新日期：2013-05-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4735-0
更新日期：2016-11-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050453
更新日期：1998-07-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00243221
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/BF00227137
更新日期：1993-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章,评审
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更新日期：2020-08-01 00:00:00
abstract：:Neuromagnetic fields from the left cerebral hemisphere of five healthy, right-handed subjects were investigated under three different experimental conditions: (1) electrical stimulation of the right index finger (task S); (2) voluntary movement of the same finger (M); (3) M+S condition, consisting of voluntary movemen...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/BF00230430
更新日期：1996-01-01 00:00:00
