DrmDoc; After reading your recent post regarding 'brain' development in the different races, I looked at you profile, quickly moving on to your blogs. Aside from being very interesting, it created a question, many of us older folks probably have thought about, more than once...
Regressive Memory and of course dementia. Past 70, I've been noticing a remarkable increase in recalling things further back in time, while forgetting things that should have been current or in your words 'the working memory'. I do have a rather busy daily routine, with my own stock portfolio, research for an occasional article, my daily three post on various forums, toped off each night playing Texas holdem for a couple hours. Yet each new day is almost requires reading my own stuff, to recall where I left off.
In your blog, I noticed that dreams are thought to come from the current or working memory, assume in the frontal lobe. In addition to remembering, even with concentration, things increasingly further back (past 8 years or so), my dreams are also regressing. That is most dreams remembered 8 years ago were reasonable current, while dreams today are of events 30-40 years ago, gradually regressing over those 8 or so years. I've been accepting this as lack of meaningful activity, never the less these dreams have continued to regress.
Now from your blog; If the working memory controls dreams, could this mean my working memory is decreasing in function, or has basically stopped and my mind is working off another part of the brain, based on my routine, daily activity and nothing exciting/stimulating. From your experiences, could there be a connection?