McGill University Montreal, Montreal Neurological Institute, Prof.dr. A. Evans, Dr. C.L. Collins
Institute of Psychiatry at Maudsley, London, Prof.dr. R. Murray
UCLA School of Medicine, Prof.dr. P. Thompson
Free University Amsterdam, Dept. of Biological Psychology, Prof.dr. D. I. Boomsma
Free University Amsterdam, Dept. of Clinical Neurophysiology, Prof.dr. C.J. Stam