Thanx Gregory! Your e-mail confirmed what I was thinking. Intuitively, I kinda thought that several PR sessions would definitely be of benefit - even if only to give me a conscious sense of satisfaction, achievement and of really hammering the info in.
But you had one line in your reply that said, "You only need to PR a book once though". I can agree with this - for immediate activation and use. But what about over extended periods of time (eg. a semester)?
The theory of "once it is in there, it is in there forever" doesn't gel with me. This seems to suggest that the subconscious mind can never forget. Can that possibly be true? Is our subconscious mind hanging onto every single memory that we have ever had? (Retrieval gets increasingly harder of course). I would have thought that the subconscious mind also requires reinforcement the way the conscious mind does, to hang onto a neural connection.
I know that our brains have the characteristic of 'plasticity' - ie. the neurons are constantly remodelling and reconfiguring their synaptic connections, based on use. So if I PhRd and activated a book 1 year ago, isn't it likely that my subconscious would have remodelled itself several times since then, probably wiping out some of the unused connections? Even 1 week may be sufficient to cause this. So I can see a definite advantage in re-PhRding certain books or certain bits of books as the need arises.
Hmmmm. Would love to hear more on other people's experiences with this. Particularly with thick textbooks that take long periods and many activation sessions to get through. If I photoread a section of a book but don't activate it for some time, will the activation be harder when I do get around to it?
