Alzheimer's disease and vascular dementia are associated with overlapping symptoms of anxiety and depression. More accurate discrimination between emerging neuropsychiatric and cognitive symptoms would better assist illness detection. The potential for protection against cognitive decline and dementia following early identification and intervention of neuropsychiatric symptoms warrants investigation.
Declaration of interest
B.J.S. consults for Peak, Mundipharma and Cambridge Cognition. J.T.O. has acted as a consultant for TauRx, Axon, GE Healthcare and Lilly.