抄録
A weak magnetic field associated with eye movement (Magneto-oculogram: MOG) is analysed both experimentally and theoretically in this study.
First, a spatial distribution of the MOG signals is experimentally measured by SQUID (Superconducting Quantum Interference Device) with a second derivative gradiometer in a magnetically shielded room.
Second, under the assumption that the source of the MOG signals can be approximated by one current dipole, it has been theoretically conjectured that there exists a current dipole of 200-350nA-m in the retina.
