Characterization of Brain Noise with a 7-Channel SQUID Magnetometer
- 1 January 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (S3-2)
- https://doi.org/10.7567/jjaps.26s3.1569
Abstract
The characteristics of neuromagnetic fields produced by spontaneous brain activity have been studied using of a large-area 7-channel DC SQUID magnetometer. By means of correlation analysis, it is shown that the signals from the brain are highly correlated on the area covered by the magnetometer. These findings illustrate the possibility of taking into account this correlated noise to provide more accurate description for the neural sources associated with specific sensory stimuli in the evoked response measurements.Keywords
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