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. 1980 Apr 4;208(4439):53-5.
doi: 10.1126/science.7361105.

Magnetic field of a nerve impulse: first measurements

J P Wikswo, J P Barach, J A Freeman

Magnetic field of a nerve impulse: first measurements

J P Wikswo et al. Science. .

Abstract

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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