Figure 2

Procedures for the multi-dipole analysis. Data from a representative subject. A), superimposed waveforms recorded from 204 gradiometers. Aa shows original waveforms and Ab~d shows the residual waveforms not explained by a model. B) schematic drawings of the location and orientation of each dipole. C), source strength as a function of time of each dipole. D), the location and orientation of each dipole. E), the location of each dipole on the subject's own MR images. PT, planum temporale; STG, superior temporal gyrus.