My understanding is that the sub-con takes everything at face value ... in other word's it believe's everything to be reality. This can probably be backed up with violence on TV and how it affects children, teens and to some degree adults.
I've also heard on some thread's on other DB how the sub-con does not and cannot assimilate negative information. IE - "I can't do it." -- is interpreted to "I do it" I'm far from being a scientist ... just an oberver on the 'quest' to knowledge and enlightment!
Well, back on track ... the PR in my opinion actively involves the mind to participate and give the reader a chance to determine if the materail is 'worth' reading or 'trashing'! Just think of all the time and aggrevation I could have saved in college when it came time to reading!
Keep the questions coming Weight39Doug and others ... that is what learning is all about ...
Remember to observe, question, seek and learn!