MAPPING MOTOR REPRESENTATIONS WITH POSITRON EMISSION TOMOGRAPHY

被引:775
作者
DECETY, J
PERANI, D
JEANNEROD, M
BETTINARDI, V
TADARY, B
WOODS, R
MAZZIOTTA, JC
FAZIO, F
机构
[1] UNIV MILAN,SCI INST H SAN RAFFAELE,INB,CNR,I-20132 MILAN,ITALY
[2] UNIV CALIF LOS ANGELES,SCH MED,DEPT NEUROL,DIV BRAIN MAPPING,LOS ANGELES,CA 90024
关键词
D O I
10.1038/371600a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
BRAIN activity was mapped in normal subjects during passive observation of the movements of an 'alien' hand and while imagining grasping objects with their own hand. None of the tasks required actual movement. Shifting from one mental task to the other greatly changed the pattern of brain activation. During observation of hand movements, activation was mainly found in visual cortical areas, but also in subcortical areas involved in motor behaviour, such as the basal ganglia and the cerebellum. During motor imagery, cortical and subcortical areas related to motor preparation and programming were strongly activated. These data support the notion that motor learning during observation of movements and mental practice involves rehearsal of neural pathways related to cognitive stages of motor control(1-3).
引用
收藏
页码:600 / 602
页数:3
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