rontotemporal dementia: Shared causation? MICHAL HARCIAREKI, DOLORES MALASPINA2, TAO SUN' & ELKHONON GOLDBERG' 'Division of Clinical Psydtokgy and Neuropsydrology, Institute of Psychology, University of Gdansk, Poland, 2Depar:ment of Psychiatry, New York University School of Medicine, Newlbrk, USA, 3Department of Cell and Development