Multi-sensor magnetoencephalography with atomic magnetometers

被引:110
作者
Johnson, Cort N. [1 ]
Schwindt, P. D. D. [1 ]
Weisend, M. [2 ]
机构
[1] Sandia Natl Labs, Albuquerque, NM 87185 USA
[2] Wright State Res Inst, Beavercreek, OH 45431 USA
基金
美国国家卫生研究院;
关键词
SPIN-EXCHANGE; ALKALI VAPORS; MAGNETOCARDIOGRAPHY; ARRAY; FIELD;
D O I
10.1088/0031-9155/58/17/6065
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The authors have detected magnetic fields from the human brain with two independent, simultaneously operating rubidium spin-exchange-relaxation-free magnetometers. Evoked responses from auditory stimulation were recorded from multiple subjects with two multi-channel magnetometers located on opposite sides of the head. Signal processing techniques enabled by multi-channel measurements were used to improve signal quality. This is the first demonstration of multi-sensor atomic magnetometer magnetoencephalography and provides a framework for developing a non-cryogenic, whole-head magnetoencephalography array for source localization.
引用
收藏
页码:6065 / 6077
页数:13
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