Legally blind, my mother, who has heard my voice over the past 54 years, like any other parent, can't recognize me by my voice. It hurt when she overheard me talking with relatives for a few minutes and asked me smiling and friendly, "And you are?" The relatives attributed it to the vision impairment. I would be able to recognize my close family members voices by phone without them identifying themselves. Who is in denial? Any reality checks for me out there, please. The families denial is frustrating. I wish there was compassion when I expressed my dismay with them privately. It's hard to have my mother ask who I am. My sister her POA will not answer my voice mail when I asked if my mother has been diagnosed with A or D.
All this to say, hearing can change suddenly, and even just a "moderate" loss can dramatically effect speech comprehension and recognition. Also, hearing loss can look like dementia as a result, and/or complicate and add to the burden of dementia. I agree she should have her hearing evaluated!
There's an interesting article at this address - http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170540/ - (don't know how the address will appear as I'm not sure how to add a URL other than copy and paste!) about voice processing in dementia. It's pretty difficult reading for us laypersons, but I think it might answer some of your questions.
As for your relatives being unable or unwilling to admit that your Mom might (or does) have dementia - this is very sad but not uncommon. Usually its the people who don't live near the person anymore who notice the problem first. Do you see your mother on a regular basis? If you don't, you will probably notice her problems and admit to them quicker than those who see her on a daily or weekly basis. I wish your sister was more forthcoming with you. After all, this person you care about is mother to BOTH of you. She should be willing to answer your questions. Has the fact that she is POA made her more distant with others in the family or given her the idea that she is somehow in authority over the other family members? If so, this is sad.
Most elderly have accepted their mortality and know they are going to die of something. However, older adults do not fear death as much as they fear dementia, losing control over their lives and being placed in a nursing home.
The best way to care for an elderly person with dementia is with kindness and compassion. Face each day with humor and understanding. Treat the person as a welcome and positive aspect of your life, not a burden. Most important, take care of yourself so you can take care of her.
I feel your pain as I dealt with it as well with my mother. One day my sister,my cousin and myself went to visit, after a little time had passed I noticed that my mother was looking at me in a very confused way. Not sure what was taking place I finally spoke in to response to something that was taking place at the time. My mother pipes up and says "oh Bon I was trying to figure out who you were" it was my voice that she recognized not the physical me. While it was very confusing at the time for me I did feel a bit of relief that she was no longer confused of me. We spent the day all together with her studying my every move. My mother was full blown Alz. All I can say is don't let this be a crutch as it will get worse in time, so prepare yourself. One day she will recognize you another day she won't. I hope this kind of helps you. Take care and best wishes.
I read your profile and , sheesh, I just don't know how to help you. I believe you that your Mom may have dementia , of course, I do not know this for a fact and not recognizing your voice could be a hearing issue -has she had her hearing checked? But on your profile you said she has some of the classic paranoia symptoms and such for AD.
I did read about how you were trying to step back from being so involved in the family drama-no? Do you think you need to re-evaluate if you should be so concerned with getting your family to admit there is a problem? I am just asking-I am not saying you should -just throwing that out there.
I wonder if your family does indeed know your Mom has dementia but just is not as open about it. I wear my emotions on my sleeve. Sheesh-I will tell the bus boy my life story if he wants to hear it but a lot of people are closed off and just do not like to talk about things. Like my sister. We butted heads for so long because she kept things bottled up and I am a tornado of emotion. Same parents-different personalities for sure!
I am sorry your Mom did not recognize your voice. It is sad. My Mom is just now forgetting things and each time it breaks my heart--because it just means her dementia is getting worse and that is just so sad. My Dad is in denial a lot of the time but what can I do? I just try and be there for him when he needs me. Sometimes it is just best to say -" if you ever want to talk about Mom I am here to listen" and leave the ball in their court.
Best of luck and many blessings to you!