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Science 4 April 1980:
Vol. 208. no. 4439, pp. 53 - 55
DOI: 10.1126/science.7361105
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Articles

Science, Vol 208, Issue 4439, 53-55
Copyright © 1980 by American Association for the Advancement of Science

articles

Magnetic field of a nerve impulse: first measurements

JP Wikswo, JP Barach, and JA Freeman

The magnetic field of the action potential from an isolated frog sciatic nerve was measured by a SQUID magnetometer with a novel room-temperature pickup coil. The 1.2 x 10(-10) tesla field was measured 1.3 millimeters from the nerve with a signal-to-noise ratio of 40 to 1.


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T. Heimburg and A. D. Jackson (2005)
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Electrical sources in human somatosensory cortex: identification by combined magnetic and potential recordings.
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