Application of a SQUID for monitoring magnetic response of the human brain
作者： D. Brenner , L. Kaufman , S. Williamson
DOI: 10.1109/TMAG.1977.1059327
关键词:
摘要: Noise characteristics are reported for a SQUID system which is sufficiently sensitive to detect visually evoked magnetic fields of the human brain without shielding. Discrimination against much larger ambient background obtained through use flux transporter with detection coils in form second order gradiometer. The continuous spectrum noise, coherent noise at isolated frequencies, and transient features described. Examples spatial variation neuromagnetic field given emphasis on those aspects important considerations design effective systems.
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sci-hub.se 参考文章(9)
D. Cohen, Large-volume conventional magnetic shields Revue de Physique Appliquée. ,vol. 5, pp. 53- 58 ,(1970) , 10.1051/RPHYSAP:019700050105300
L. D. Jackel, R. A. Buhrman, Noise in the rf SQUID Journal of Low Temperature Physics. ,vol. 19, pp. 201- 246 ,(1975) , 10.1007/BF00116178
A. J. Surkan, L. J. Lanzerotti, ULF geomagnetic power near L=4 3. Statistical study of power spectra in conjugate areas during December solstice Journal of Geophysical Research. ,vol. 79, pp. 2403- 2412 ,(1974) , 10.1029/JA079I016P02403
J. E. Zimmerman, Paul Thiene, J. T. Harding, Design and Operation of Stable rf‐Biased Superconducting Point‐Contact Quantum Devices, and a Note on the Properties of Perfectly Clean Metal Contacts Journal of Applied Physics. ,vol. 41, pp. 1572- 1580 ,(1970) , 10.1063/1.1659074
D. Brenner, S. Williamson, L. Kaufman, Visually evoked magnetic fields of the human brain. Science. ,vol. 190, pp. 480- 482 ,(1975) , 10.1126/SCIENCE.170683
R. P. Giffard, R. A. Webb, J. C. Wheatley, Principles and methods of low-frequency electric and magnetic measurements using an rf-biased point-contact superconducting device Journal of Low Temperature Physics. ,vol. 6, pp. 533- 610 ,(1972) , 10.1007/BF00644085
J. Opfer, Y. Yeo, J. Pierce, L. Rorden, A superconducting second-derivative gradiometer IEEE Transactions on Magnetics. ,vol. 10, pp. 536- 539 ,(1974) , 10.1109/TMAG.1974.1058425
A. C. Fraser-Smith, J. L. Buxton, Superconducting magnetometer measurements of geomagnetic activity in the 0.1- to 14-Hz frequency range Journal of Geophysical Research. ,vol. 80, pp. 3141- 3147 ,(1975) , 10.1029/JA080I022P03141
Martin Reite, James E Zimmerman, Jochen Edrich, John Zimmerman, The human magnetoencephalogram: some EEG and related correlations. Electroencephalography and Clinical Neurophysiology. ,vol. 40, pp. 59- 66 ,(1976) , 10.1016/0013-4694(76)90179-6