P2‐464: BIOLOGICAL CORRELATES OF WHITE MATTER CHANGES IN AUTOSOMAL DOMINANT ALZHEIMER'S DISEASE. (1st July 2006) - Strain, Jeremy F.; Smith, Robert X.; Wang, Qing; Fagan, Anne M.; Gordon, Brian A.; Hassenstab, Jason; Xiong, Chengjie; McDade, Eric; Morris, John C.; Benzinger, Tammie L.S.; Bateman, Randall J.; Ances, Beau M.; et al.