Trying to engage the Alzheimer's patient is important....The point is to create new patterns of behavior that take them out of the their "current focus".
Amplify’d from www.alzheimersreadingroom.com
Many people with Alzheimer’s go through a period of heightened agitation, aggression, delusions, paranoia, or wandering during the late afternoon or early evening.
The phenomenon is commonly called Sundowning.
Tips for dealing with Sundowning
Original content Carol Larkin, the Alzheimer's Reading Room
Alzheimer's Disease, Tips for Dealing with Sundowning