 From 1985 on in Vienna, Deecke has built his own MEG, the first generation with a five-channel MEG-System, and from 1995 on with the MEG Centre Vienna an MEG-whole head system with 143 channels (CTF Vancouver, Canada) has been established.Deecke and his team were successful to prove the participation of the SMA not only with the early Bereitschaftspotential but also with the Bereitschaftsmagnetfeld (Bereitschaftsfield in the MEG, solving the cancellation problem of the two SMAs opposing each other.In 1984 visual tracking movements were investigated.