  Using simple radiofrequency (RF) instrumentation, we detect spontaneous RF
emission from Drosophila immersed in a magnetic field within a waveguide or a
shielded RF resonator. Remarkably, the RF emissions are abolished by chloroform
anesthesia. Conversely, activation of the nervous system by
temperature-sensitive cation channels causes bursts of radiofrequency emission.
Both observations suggest that the radiofrequency emissions come from the
nervous system. RF frequency and magnetic field dependence are consistent with
RF emission being related to electron Zeeman energy. Since the RF emission
occurs without external energy input, its energy must come from cell
metabolism.We propose that RF emissions are due to in vivo spin-polarised
cellular electron currents. We suggest that spin-polarised currents relax
radiatively to equilibrium at the Larmor frequency and are detected under our
experimental conditions (resonator cavity and lock-in detection). We invite
scrutiny of our methods and results, aim to elicit theorists interest in this
novel phenomenon, and encourage replication in this and other preparations.
