RT Journal Article SR Electronic T1 Aerobic exercise effects on cognitive and neural plasticity in older adults JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 22 OP 24 DO 10.1136/bjsm.2008.052498 VO 43 IS 1 A1 Erickson, K I A1 Kramer, A F YR 2009 UL http://bjsm.bmj.com/content/43/1/22.abstract AB