Fig. 1: (Top) auditory evoked magnetic field response to standard tone in healthy subjects (solid lines) and depressive patients (dotted lines) measured with a magnetometer. The stimuli were delivered to the left ear. The enlarged response presents the largest responses over the right temporal areas (contralateral to the ear stimulated). (Bottom) Contour maps at the peak of the P1m. Solid lines indicate where magnetic flux where it enters outside the head, and dotted lines indicate where magnetic flux exits within the head. Contour line separation is 10 ft. The arrows depict the strength and location of single equivalent current dipoles of P1m applied to data.