Magnetic field of a nerve impulse: first measurements
- PMID: 7361105
- DOI: 10.1126/science.7361105
Magnetic field of a nerve impulse: first measurements
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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