Does barometric pressure or changes in the weather affect dementia and Alzheimer’s symptoms?

So far, there is no direct association between Alzheimer's symptoms and weather changes. Yes, there is such an association with arthritic pain. If the person with dementia suffers as well of severe arthritis, it's logical to think that if the joint pains increase due to the weather, this may affect indirectly his/her behavior.

Nay, why do you ask? Have you observed a pattern in your mother's behaviour when there's a change in barometric pressure?

In a brief internet search I couldn't find anything that related to your question. I did find studies about dementia and weather as it relates to hospital admission due to weather conditions (cold weather = ice = falling, hot weather = dehydration). My husband has been a life-long migraine sufferer and barimetric pressure has often set off his headaches. His mother was the same -- until she got dementia and then she never complained of anothe migraine since. We think hers were mostly from stress. With short-term memory loss she can no longer remember the stressors in her life. When my husband had a signigicant blow to his head he wound up in the ER with concussion symptoms, mainly he was in a memory loop for 24 hours. He said is was the most peaceful he's ever felt. I can't think of what about barimetric pressure would impact ALZ/dementia, since it permanently wrecks certain parts of the brain. Once it's wrecked, it is wrecked. No air pressure is going to bring back that grey matter or make it go away "temporarily". It would be extremely difficult to conduct a study to research this since dementia can present differently in different people on different days. There'd be no way to get accurate feedback from the dementia patients themselves, either. And then there's the unpredictable weather, so all subjects would need to be in the same facility at the same time. It couldn't be done.