[1] Univ Munster, Inst Expt Audiol, Biomagnetism Ctr, D-48129 Munster, Germany
[2] Univ Munster, Dept Neurol, D-48129 Munster, Germany
[3] Cornell Univ, Weill Med Coll, Dept Psychiat, Funct Neuroimaging Lab, New York, NY 10021 USA
[4] Univ Munster, Dept Psychiat, D-48129 Munster, Germany