Sudden accent change?

[SinisterBumFacedCat]

My DM has been diagnosed with Alzheimer’s. I think early to mid stages, she still lives independently but needs a lot of help with practical stuff. I have noticed she has started to talk with a northern accent for certain words. Not all words just ones with certain sounds that can be adapted. Odd thing is, she is not northern, she was born and raised in the south of England and only lived briefly up north for a couple of years with her late husband. He was originally from up north but was brought up in the south and sounded pretty southern. I don’t know if her sudden accent change is a way of memorialising her late husband or a symptom of the disease affecting her voice. We’ve been through a shitstorm of paranoia and false accusations over the last few years so I know this disease is hell but I just find this change really puzzling. Anyone else has this happen?

Think of Alzheimer's as time travel, it's possible that the part of her brain that deals with accent is stuck when she lived up north and sometimes it breaks through her natural accent

I agree with Getting. She's probably gone back to where she was in time when she lived in the North.

DMIL was stuck for a long time on when she first started to work and was ok that she would talk about.