[Kosirich]

The fact smells, bad or good, act as strong triggers of memory should be indicative that this area is worth exploring in relation to dementia. For me texture works to some extent in a similar fashion. I can remember the feeling of textures of different items that I haven't touched since I was a child and the act of trying to make myself remember the feeling of touching them, brings memory back in a different that is more "vivid" than just thinking about their shape (color).