Abnormal motor asymmetry only during bimanual movement in schizophrenic patients compared with healthy subjects

Abnormal motor asymmetry only during bimanual movement in schizophrenic patients compared with healthy subjects
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与健康受试者相比,精神分裂症患者仅在双手运动时出现异常运动不对称

DOI:
10.1016/s0920-9964(02)00286-4
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发表时间:
2003
影响因子:
4.5
通讯作者:
M. Gómez
M. Gómez
中科院分区:
医学2区
文献类型:
--
作者:
R. Tabarés;J. Salazar;Gabriel Selva;Vicente Balanzá;Francisco Ballester;Rosa Cózar;C. Leal;M. Gómez

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在精神分裂症中,关于运动不对称的研究主要集中在使用单手运动测试和任务的惯用手的方向和程度上。然而,在大多数手动动作的产生中,通常双手协作。本研究采用一种新的实验性运动成套测验,探讨精神分裂症患者和健康人在单手和双手任务中的运动不对称性。具体而言,作者调查了偏侧运动指数在手指敲击和手转动任务在四个unimanual和四个双手的条件下,在84精神分裂症和31名健康受试者,所有的右手。与健康受试者相比,精神分裂症患者仅在双手叩击时表现出运动不对称性降低,这是由于右手表现降低。这些结果强调了在评估运动不对称性时考虑双手操作的重要性,并表明有必要使用双手操作任务来检验精神分裂症异常运动偏侧化的假设。
In schizophrenia, research on motor asymmetry has focused on the direction and the degree of handedness using unimanual motor tests and tasks. However, typically both hands collaborate in the production of most manual movements. This study explored motor asymmetry exhibited during unimanual and bimanual tasks in schizophrenic and healthy subjects using a new experimental motor battery. Specifically, the authors investigated the motor indices of laterality during finger-tapping and hand-turning tasks in four unimanual and four bimanual conditions in 84 schizophrenic and 31 healthy subjects, all right-handed. The schizophrenic patients showed reduced motor asymmetries only during bimanual tapping compared with healthy subjects due to reduction in right-hand performance. These results stress the importance of considering bimanual conditions in the assessment of motor asymmetries, and suggest that it is necessary to use bimanual tasks to test hypotheses about abnormal motor lateralization in schizophrenia.
DOI: 10.1093/oxfordjournals.schbul.a033369
发表时间: 1999
影响因子: 6.6
作者:
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通讯作者: J. Ragland;R. Gur;B. Klimas;N. Mcgrady;R. Gur
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期刊: The International journal of neuroscience
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DOI: 10.1093/oxfordjournals.schbul.a033368
发表时间: 1999
影响因子: 6.6
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通讯作者: Gur,RE