Re: the elephant in the room
1. I have nowhere seen an indication that the falses were all false positives. They might as well have been all false negatives, although a split into false pos and negs is the more likely variant. Assuming a 50:50 split between pos and neg it would give a false positive to 12 percent. And it would "miss" the other 12 percent.
2. You're sort of assuming that this kind of brain scan is going to be mandatory for everyone. I doubt that anyone advocates this kind of method becoming even a routing screening in hospitals. It is just another diagnostical tool to be usedby medical professionals.
Biting the hand that feeds IT
