LATENCY JUMP OF RELAXED VERSUS CONTRACTED MOTOR EVOKED-POTENTIALS AS A MARKER OF CORTICOSPINAL MATURATION
LATENCY JUMP OF RELAXED VERSUS CONTRACTED MOTOR EVOKED-POTENTIALS AS A MARKER OF CORTICOSPINAL MATURATION
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DOI：
10.1016/0168-5597(93)90086-5
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发表时间：
1993-02-01
期刊：
影响因子：
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通讯作者：
ROSSINI, PM
中科院分区：
文献类型：
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作者：
CARAMIA, MD;DESIATO, MT;ROSSINI, PM
对17名2 ~ 12岁儿童进行了磁脑刺激，以研究放松和收缩运动诱发电位（MEP）之间的潜伏期差异作为年龄的函数。虽然收缩MEP的潜伏期随着年龄和身体大小以线性方式增加，但松弛MEP潜伏期的“成熟”要慢得多，其在大约10-12岁时获得成人值，同时获得手工技能。这种“潜伏期跳跃”的年龄相关变化似乎是与运动系统相关的成熟现象的具体指标。
Magnetic brain stimulation was carried out in 17 children, aged from 2 to 12 years, in order to investigate the latency difference between relaxed and contracted motor evoked potentials (MEPs) as a function of age. While the latency of contracted MEPs increased in a linear fashion with age and body size, the relaxed MEP latency had a much slower ''maturation,'' which gained the adult value at about 10-12 years of age in parallel with the acquisition of manual skills. The age-related variation of this ''latency jump'' appears to be a specific indicator of maturative phenomena relating to motor systems.