I think writing notes may help initially but as dementia progresses, the ability to a.) notice the sign, b.) the ability to comprehend what the note says and c.) the ability to translate the meaning into action is failing because the person has brain failure, not just memory as many people believe. Dementia has different stages as it progresses. I needed to know what is likely to happen in each stage. I highly recommend taking the online courses offered by Teepa Snow at Positive Approach to Care. This lady gets it. She is all about how we can care for our loved ones in a positive loving manner. I have taken the 1st and 2nd courses and will be taking the 3rd and 4th in December. I have learned so much that has helped me understand what is happening to my husband's brain. For instance I learned that dementia patients often lose their peripheral vision. My husband has and I have to be directly in font of him for him to notice me and listen to what I say. These courses are designed to help you work with what is still there in the person with dementia. Best thing I ever did FOR MYSELF on this journey of dementia caregiving. God bless you all, you are all in my prayers.