抄録
Middle-latency auditory evoked magnetic fields in the human brain were measured by using a 7-channel dc SQUID system. The locations of the electric sources of Pa, Nb, and Pb components were estimated by solving the inverse problem, and were compared with the sources of long-latency auditory evoked magnetic fields. The sources of Pa and N100 were estimated at similar positions in the auditory cortex, whereas the source of Pb was estimated in a separate area anterior to the sources of Pa and N100.