Abstract：
:A Fitts' task was used to examine whether the large movement asymmetry in subjects with spastic hemiparesis can be reduced or eliminated when both limbs are required to perform functionally equivalent tasks. Furthermore, it was determined whether any such benefit was expressed as mutual accommodation, or whether one hand "slaves" the other. Finally, the effect of increased task constraints on the magnitude of the asymmetry was considered. A group of ten students served as controls. Subjects had to grasp small balls and subsequently place them into holes. As expected, large total response time differences were present between the hands of the hemiparetic subjects in the unimanual conditions. However, 92% of the difference between hands was eliminated in the bimanual conditions. It is argued that the observed temporal invariance, or time locking, between hands in the bimanual conditions might be facilitated through the activity of bilateral controls exerted from each hemisphere and neural crosstalk at different levels of the central nervous system. Still, an asymmetric tendency remained in the bimanual conditions: a tendency existed for the impaired hand to reach the "target" later in time compared with the dominant hand. This tendency was enlarged as the asymmetry in task demands for the two limbs increased.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Steenbergen B,Hulstijn W,de Vries A,Berger Mdoi
10.1007/BF00241378subject
Has Abstractpub_date
1996-06-01 00:00:00pages
91-8issue
1eissn
0014-4819issn
1432-1106journal_volume
110pub_type
杂志文章abstract：:Control of velocity in rapid flexion movements of the interphalangeal joint of the thumb was investigated by examining movement trajectories and patterns of activity in the extensor pollicis longus (EPL) and flexor pollicis longus (FPL) muscles. Although velocity was controlled with considerable accuracy, it was not s...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00237406
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
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更新日期：2000-04-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-003-1648-5
更新日期：2004-01-01 00:00:00
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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
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235825
更新日期：1984-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-016-4606-8
更新日期：2016-07-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
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更新日期：2005-07-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
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更新日期：2017-06-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00229263
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/BF00239202
更新日期：1983-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228003
更新日期：1990-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228811
更新日期：1990-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230698
更新日期：1989-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-004-1940-z
更新日期：2004-11-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238808
更新日期：1981-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228792
更新日期：1990-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-005-2314-x
更新日期：2005-06-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2214-6
更新日期：2010-05-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236532
更新日期：1985-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235790
更新日期：1982-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00235897
更新日期：1982-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-006-0583-7
更新日期：2006-11-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00238464
更新日期：1979-06-01 00:00:00
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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
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-010-2376-2
更新日期：2010-09-01 00:00:00
abstract：:In classic conditioning, the interstimulus interval (ISI) between the conditioned (CS) and unconditioned (US) stimulus is a critical parameter. The aim of the present experiment was to assess whether, during conditioning, modification of the CS-US interval could reliably produce changes in the functional properties of...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s002219900290
更新日期：2000-06-01 00:00:00
abstract：:1. An intracellular study on pyramidal tract (PT) neurons in the cat's motor cortex was carried out to examine whether their antidromic activation would be able to induce plastic changes in the efficacy of the synapses situated on their membrane. 2. The experimental paradigm was based on the principles of classical co...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236602
更新日期：1981-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00239360
更新日期：1982-01-01 00:00:00
abstract：:People are more sensitive to detecting asynchrony between a self-generated movement of the hand and delayed visual feedback when what they see matches the expected "self" perspective rather than an "other" perspective (Hoover and Harris in Exp Brain Res 222:389-397, 2012). We take this as corresponding to the ability ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-014-4181-9
更新日期：2015-04-01 00:00:00
abstract：:This study explored the directional specificity of fear of falling (FoF) effects on the stabilizing function of anticipatory postural adjustments (APA). Participants (N = 71) performed a series of lateral leg raises from an elevated surface in three conditions: in the "Control condition", participants stood at the mid...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/s00221-015-4471-x
更新日期：2016-03-01 00:00:00
