I read a story a while back that mentioned a system like this being used for old people in the early stages of Alzheimer's or whose memories were growing weake

I read a story a while back that mentioned a system like this being used for old people in the early stages of Alzheimer's or whose memories were growing weaker from age. Apparently wearing something like this and viewing the images in a quick slideshow at the end of the day helped improve memory as a whole. I think I would like to have something like this to be reminded what I've done in the day. Sort of an exercise in mindfulness.