Home > Neurologic Disease > Frontotemporal Dementia Affects Behavior Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Oct 26, 2008 by BMiller, Views: 3382 Frontotemporal Dementia has significant effects on behavior and language. There are 3 major subtypes of Frontotemporal Dementia. The 3 affect behavior and language in different ways. Dr. Bruce Miller, the Director of the Memory and Aging Center at UCSF, discusses frontotemporal dementia.