Magnetoencephalography: Evidence of Magnetic Fields Produced by Alpha-Rhythm Currents
- 23 August 1968
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 161 (3843) , 784-786
- https://doi.org/10.1126/science.161.3843.784
Abstract
Weak alternating magnetic fields outside the human scalp, produced by alpha-rhythm currents, are demonstrated. Subject and magnetic detector were housed in a multilayer magnetically shielded chamber. Background magnetic noise was reduced by signal-averaging. The fields near the scalp are about 1 × 10 -9 gauss (peak to peak). A course distribution shows left-right symmetry for the particular averaging technique used here.Keywords
This publication has 2 references indexed in Scilit:
- Theory of Magnetic Detection of the Heart's Electrical ActivityJournal of Applied Physics, 1965
- Detection of the magnetic field of the heartAmerican Heart Journal, 1963