Brain activation during motor imagery (MI) has been studied extensively for years. Based on studies of brain activations of MI, in present study, a complex finger tapping imagery and execution experi- ment is design...Brain activation during motor imagery (MI) has been studied extensively for years. Based on studies of brain activations of MI, in present study, a complex finger tapping imagery and execution experi- ment is designed to test the brain activation during MI. The experiment results show that during MI, brain activation exists mainly in the supplementary motor area (SMA) and precentral area where the dorsal premotor area (PMd) and the primary motor area (M1) mainly located; and some activation can be also observed in the primary and secondary somatosensory cortex (S1), the inferior parietal lobule (IPL) and the superior parietal lobule (SPL). Additionally, more brain activation can be observed during left-hand MI than during right-hand MI, this difference probably is caused by asymmetry of brain.展开更多
基金supported by the National Natural Science Foundation of China under Grant No. 90820006 and 30770590Key Research Project of Science and Technology of MOE under Grant No. 107097National 863 Program under Grant No. 2008AA02Z408.
文摘Brain activation during motor imagery (MI) has been studied extensively for years. Based on studies of brain activations of MI, in present study, a complex finger tapping imagery and execution experi- ment is designed to test the brain activation during MI. The experiment results show that during MI, brain activation exists mainly in the supplementary motor area (SMA) and precentral area where the dorsal premotor area (PMd) and the primary motor area (M1) mainly located; and some activation can be also observed in the primary and secondary somatosensory cortex (S1), the inferior parietal lobule (IPL) and the superior parietal lobule (SPL). Additionally, more brain activation can be observed during left-hand MI than during right-hand MI, this difference probably is caused by asymmetry of brain.