Is my wife listening or zoning out?

In the evenings, my wife sits on the side of the bed facing away from the TV. Is she listening to the TV or just zoning out?. She does not speak.
In your other post you wrote:

"My wife is approaching end stage early onset Alzheimer's. I am her sole caregiver. She was first diagnosed in October, 2010."


Both of my parents had Alzheimer's. They had next to NO attention span towards the end.

Your wife could be both listening and zoning out.