Functional imaging of human motor cortex at high magnetic field
作者： A. P. Georgopoulos , H. Merkle , J. M. Ellermann , R. S. Menon , S. Ogawa
关键词:
摘要: 1. We used conventional gradient echo magnetic resonance imaging (MRI) at high field strength (4 Tesla) to functionally image the right motor cortex in six normal human subjects during performance of a sequence self-paced thumb digit oppositions with left hand (contralateral task), (ipsilateral and both hands (bilateral task). 2. A localized increase activity lateral was observed all task. The area activation similar contralateral bilateral tasks but 20 times smaller ipsilateral intensity 2.3 greater than
sci-hub.se 参考文章(32)
P. E. Roland, B. Larsen, N. A. Lassen, E. Skinhoj, Supplementary motor area and other cortical areas in organization of voluntary movements in man Journal of Neurophysiology. ,vol. 43, pp. 118- 136 ,(1980) , 10.1152/JN.1980.43.1.118
J. Tanji, K. Okano, K. C. Sato, Neuronal activity in cortical motor areas related to ipsilateral, contralateral, and bilateral digit movements of the monkey. Journal of Neurophysiology. ,vol. 60, pp. 325- 343 ,(1988) , 10.1152/JN.1988.60.1.325
J. G. Colebatch, M. P. Deiber, R. E. Passingham, K. J. Friston, R. S. Frackowiak, Regional cerebral blood flow during voluntary arm and hand movements in human subjects. Journal of Neurophysiology. ,vol. 65, pp. 1392- 1401 ,(1991) , 10.1152/JN.1991.65.6.1392
P. E. Roland, E. Skinhoj, N. A. Lassen, B. Larsen, Different cortical areas in man in organization of voluntary movements in extrapersonal space Journal of Neurophysiology. ,vol. 43, pp. 137- 150 ,(1980) , 10.1152/JN.1980.43.1.137
P. T. Fox, M. E. Raichle, Focal physiological uncoupling of cerebral blood flow and oxidative metabolism during somatosensory stimulation in human subjects. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 83, pp. 1140- 1144 ,(1986) , 10.1073/PNAS.83.4.1140
Seiji Ogawa, Tso-Ming Lee, Magnetic resonance imaging of blood vessels at high fields:In vivo andin vitro measurements and image simulation Magnetic Resonance in Medicine. ,vol. 16, pp. 9- 18 ,(1990) , 10.1002/MRM.1910160103
J. G. COLEBATCH, S. C. GANDEVIA, The distribution of muscular weakness in upper motor neuron lesions affecting the arm. Brain. ,vol. 112, pp. 749- 763 ,(1989) , 10.1093/BRAIN/112.3.749
H. J. Gould, C. G. Cusick, T. P. Pons, J. H. Kaas, The relationship of corpus callosum connections to electrical stimulation maps of motor, supplementary motor, and the frontal eye fields in owl monkeys The Journal of Comparative Neurology. ,vol. 247, pp. 297- 325 ,(1986) , 10.1002/CNE.902470303
Keith R. Thulborn, John C. Waterton, Paul M. Matthews, George K. Radda, Oxygenation dependence of the transverse relaxation time of water protons in whole blood at high field Biochimica et Biophysica Acta. ,vol. 714, pp. 265- 270 ,(1982) , 10.1016/0304-4165(82)90333-6
RICHARD D. JONES, IVAN MACG. DONALDSON, PHILIP J. PARKIN, IMPAIRMENT AND RECOVERY OF IPSILATERAL SENSORY-MOTOR FUNCTION FOLLOWING UNILATERAL CEREBRAL INFARCTION Brain. ,vol. 112, pp. 113- 132 ,(1989) , 10.1093/BRAIN/112.1.113