it used to be tse connectis in thebrain, 100 billion nerve cells in the average human ain, each nerve cell makes something like 1,000-10,000ontacts with other nerve cells. the contacts n be on, can be off,omeone calculated that the nuer of brain states -- the number opossible permutations ceeds the number of elemeary particles in thenown universe. how do y make theconnections? oneiew is it's allade by genes, there in thgenome and fixed in infancynd there is not much you can do when there is damag to the adult brain, for exame when there is stroke the dogma h always beethat there is ts -- this ties into the modular vi ofrain functis that there are different highly specialized regions, andvery point on the skin surface goes to a particular point ithe brain, and so on and so forth, so if you punch out a mole a function is lost a that's , so what we have learned from our experiments in the last 10-15 years and some of my colleagues in other stitutions is this is simply not true. instead of thinking of punched-t modules you really thinkf a dynamic organism, almost, a brain, and when there

thebrain will not tell you which specic ugs, but there can be some cellular changes that could have developed. especially dealing with something like propol. >> the part of the veigation, if the propofol is found in his body, why wouldn't it justbe as simple as one, two, three. ator there gave it tohim. he d a heart attack around that would be e reason he died. >> we m want find that it is far different from whatou have just prognosticate however, obviously, it remains toe seen what the analysis shows. i want to say this about profol, diprivan. it is a drug only t be ministered by a doctor. only in a hospitalsetting. itknown to produce a marke decrease in arterial height in ood prsure and it is arug so mostly given under highly aseptic technique becaus it is suspectable to bacterial contamination. a these reasons, ifny doctorpscribed propofol for michjackson to take at home without an anesthesiologist, in my opinion that is gross negative le. >> thank yo >>>up next. did team obama underc themselves on a stimulus? the battle overhow the money is being spent a whether a second stulus is needed

and thebrain, did fabab joinin us w.w. sten, what doeoe the future hold rere?al l estete ever going t t turnrnaround? >> eventually it wll turn ouou. unfortunately, i t tnknk wre gogointoto go roroug a pocket o tutuulence once again. belief is in the summer as you head into the fall you're going to see t ususin market take a lilele b of a breather agn. you've h h a a number of what wowoulcall temporararystimuli that have nefited housingng f the lalast several monthth mamanyff these we'regetting aned off of and is going too have anegative depressant on thhohoing markrket >> d dss this scenario makee sense? ththe alalstate markrket like ay other market, is a big cocoononn ofof psychology involveded here. absolutely.y. >> and i'm thinking sisinc e maet has beeninin troubleleor theeears now, we rllll really the top back i in'06. arwe not reaching, say, perhaps,s, iour timetablble you're tkiking about late summer oror fall, mightht that not be time enen people r rlly start t ththw w inhe towel because bebeuse they've been sittiting ththsidelinesnd they p put t the p