I didn't respond, 'cause I'm not sure exactly *how* to respond.
When my dp/dr is not real "active," my memory and concentration are generally fine. However, if I focus too intently on memories, it can actually tend to "activate" my dp/dr -- which I don't want to do.
Also, when my dp/dr is active, memory is often foggy and distant. OTOH, I can experience various "paramnesias" all too clearly.