Long term memory is usually a little better than short term. Something that triggers a fond memory from past. Funny story - I and my kids were visiting my mom (dementia) on Christmas Day. We gave her a number of gifts in bags. She opened them and seemed to be happy. We helped her set the gifts aside. 10 minutes later she said, “oh, who’s getting the gifts?” My daughter said, “those are for you gramma”. She opened them again. She repeated this 5 times in the next hour 😂. We had fun each time.