Abstract：
:Intracellular recording techniques were used to test for cross-modality and topographic convergence among inputs to area 3a of cerebral cortex. Recordings were made within the projection area of group I afferent fibers of the deep radial nerve in barbiturate-anesthetized cats. Epsps were evoked in 90% of neurons (81/90) by electrical stimulation of more than one nerve of the contralateral forelimb. The deep radial nerve evoked the shortest latency epsps within this region of cortex and the only ones likely to be mediated by a monosynaptic thalamocortical pathway. However, the epsps evoked from other forelimb nerves (of deep or cutaneous origin) had mean latencies only a few milliseconds (1.3-3.0 ms) longer. Furthermore, there were a variety of interactions among inputs from separate afferent sources. The observed interactions included spatial facilitation, occlusion and afferent inhibition. The consequence of these interactions was that neuronal responses were shaped by combinations of effects from different topographic regions of the forelimb or of different modalities. The findings are interpreted as indicating a sharing of neurons among pathways to cortical neurons from separate afferent sources. Interactions between ascending pathways by way of such shared neurons may contribute to the modulation or plasticity of somatosensory responsiveness during behavior or after deafferentation.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Kang R,Herman D,MacGillis M,Zarzecki Pdoi
10.1007/BF00236532subject
Has Abstractpub_date
1985-01-01 00:00:00pages
271-8issue
2eissn
0014-4819issn
1432-1106journal_volume
57pub_type
杂志文章abstract：:A photograph of an action contains implicit information about the depicted motion. Previous studies using either psychophysics or neuroimaging suggested that the neural processing of implied-motion images shares some features of real-motion processing. According to the hypothesis that the target depicted in photograph...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2598-y
更新日期：2011-04-01 00:00:00
abstract：:Spatial orientation is crucial when subjects have to accurately reach memorized visual targets. In previous studies modified gravitoinertial force fields were used to affect the accuracy of pointing movements in complete darkness without visual feedback of the moving limb. Target mislocalization was put forward as one...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-2087-7
更新日期：2005-03-01 00:00:00
abstract：:The present study investigated how valence, arousal, and subjective liking of music affect visually induced motion sickness (VIMS). VIMS is a common side effect when interacting with virtual environments, resulting in discomfort, dizziness, and/or nausea. Music has previously been shown to reduce VIMS, but the precise...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-020-05871-2
更新日期：2020-10-01 00:00:00
abstract：:Motor control tasks like stance or object handling require sensory feedback from proprioception, vision and touch. The distinction between tactile and proprioceptive sensors is not frequently made in dynamic motor control tasks, and if so, mostly based on signal latency. We previously found that force control tasks en...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3341-z
更新日期：2013-02-01 00:00:00
abstract：:Changes in cognition due to age have been associated with falls and reduced standing postural control. Sensory integration is one component of postural control that may be influenced by certain aspects of cognitive functioning. This study investigated associations between measures of cognitive function and sensory int...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-018-5394-0
更新日期：2019-01-01 00:00:00
abstract：:Intradermal injection of capsaicin results in sensitization of spinothalamic tract cells to brushing and pressure applied to the cutaneous receptive field in anesthetized monkeys. A significant increase in background activity also occurs immediately after capsaicin injection that lasts for at least 2 h. A 40-50% decre...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/pl00005675
更新日期：1997-06-01 00:00:00
abstract：:We constructed average histograms from responses evoked by flashing stimuli and noted previously described variations in the shape of the response profile, particularly with respect to sharpness of the peak. To express this variable, we measured the half-rise latency, which is the latency from stimulus onset required ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00242177
更新日期：1995-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-0938-8
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/BF02259147
更新日期：1992-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-1146-2
更新日期：2008-02-01 00:00:00
abstract：:Previous work has highlighted the role of haptic feedback for manual dexterity, in particular for the control of precision grip forces between the index finger and thumb. It is unclear how fine motor skills involving more than just two digits might be affected, especially given that loss of sensation from the hand aff...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-019-05583-2
更新日期：2019-09-01 00:00:00
abstract：:The human soleus H-reflex is commonly tested as an indicator of the reflex excitability of the calf muscles with infrequent stimuli to a subject seated and at rest. However, the reflex varies widely with the level of voluntary contraction and with the time history of stimulation. We studied two aspects of this variati...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-007-0989-x
更新日期：2007-09-01 00:00:00
abstract：:Changing direction during walking is a common task humans encounter every day. This destabilizing event requires the central nervous system (CNS) to quickly produce an appropriate response, maintain stability, and propel the body in the intended direction. Previous research has demonstrated that 'individuals with mult...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-014-3873-5
更新日期：2014-06-01 00:00:00
abstract：:The latencies of visually-evoked responses from X- and Y-type neurons of the cat's dorsal lateral geniculate nucleus were measured in a manner that takes account of the inherent variability of discharge in these cells. Latencies measured in this way vary from trial to trial in one cell (and also between cells) by tens...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235998
更新日期：1987-01-01 00:00:00
abstract：:The ability to make accurate reaching movements toward proprioceptively defined target locations was studied in seven normal subjects who were trained to reach to five different targets in a horizontal plane, with no vision of hand or target. The task consisted of moving a handle from a fixed origin to each target loc...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229793
更新日期：1993-01-01 00:00:00
abstract：:Human observers are experts at visual face recognition due to specialized visual mechanisms for face processing that evolve with perceptual expertize. Such expertize has long been attributed to the use of configural processing, enabled by fast, parallel information encoding of the visual information in the face. Here ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-013-3463-y
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/s00221-013-3708-9
更新日期：2013-12-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210050803
更新日期：1999-08-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1915-1
更新日期：2009-08-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230938
更新日期：1992-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230932
更新日期：1992-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-008-1595-2
更新日期：2009-02-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-011-2966-7
更新日期：2012-02-01 00:00:00
abstract：:Since normal human subjects can perform smooth-pursuit eye movements only in the presence of a moving target, the occurrence of these eye movements represents an ideal behavioural probe to monitor the successful processing of visual motion. It has been shown previously that subjects can execute smooth-pursuit eye move...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002210000459
更新日期：2000-08-01 00:00:00
abstract：:We investigated the effect of musical expertise on sensitivity to asynchrony for drumming point-light displays, which varied in their physical characteristics (Experiment 1) or in their degree of audiovisual congruency (Experiment 2). In Experiment 1, 21 repetitions of three tempos x three accents x nine audiovisual d...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-009-1817-2
更新日期：2009-09-01 00:00:00
abstract：:In the present study pineal glands of rats aged 69-71 days were studied in vivo and in vitro with respect to day/night changes of "synaptic" ribbons and spherules. It was found that ribbons outnumber spherules by a factor of 3. In vivo, both ribbons and spherules show a roughly 3-fold increase in number at 1 a.m. when...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237178
更新日期：1982-01-01 00:00:00
abstract：:Many studies have reported that blind people compensate for their visual deficit by sharpening auditory processes. Here we compare the sensitivity to echo cues between blind and sighted subjects. In the first experiment, the blind subjects were more accurate than the sighted subjects in localizing an object on the bas...
journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
doi：10.1007/s00221-005-2329-3
更新日期：2005-09-01 00:00:00
abstract：:Groups of pregnant rats were injected with two successive daily doses of 3H-thymidine from gestational day 12 and 13 (E12+13) until the day before parturition (E21+22) in order to label in their embryos the proliferating precursors of neurons. At 60 days of age the proportion of neurons generated (or no longer labelle...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237506
更新日期：1981-01-01 00:00:00
abstract：:Prior research has concluded that the correlations of isometric finger forces represent the extent to which the fingers are controlled as a single unit. If this is the case, finger force correlations should be consistent with estimates of the controlled (dynamical) degrees of freedom in finger forces. The present stud...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-012-3280-8
更新日期：2012-12-01 00:00:00
abstract：:Brain-damaged patients may extinguish contralesional stimuli when ipsilesional stimuli are presented simultaneously. Most theories of extinction postulate that stimuli compete for pathologically limited attentional resources with a bias to process ipsilesional over contralesional stimuli. Implicit in this view is the ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1823-8
更新日期：2004-07-01 00:00:00
