P3‐476: REDUCED LOCUS COERULEUS INTEGRITY IS ASSOCIATED WITH POOR ATTENTIONAL CONTROL IN OLDER ADULTS WITHOUT DEMENTIA. (1st July 2019) - Weigand, Alexandra J.; Thayer, Rachel E.; Solders, Seraphina K.; Elman, Jeremy A.; Mikhael, Tanya; Simone, Stephanie M.; Cummins, Pearl N.; Granholm, Eric L.; Frank, Lawrence R.; Bondi, Mark W.