Your Brain Gave You Away
Because I watched 24 last night and had dreams that Jack Bauer was trying to save me, I thought this would be my offering to you today. We knew it was coming--we've seen the gambling studies and the preliminary data leading up to lying studies. Will it be better than the polygraph? Will it be better than Jack Bauer? I fear that those of you dreading the polygraph portion of your security clearance now have one more thing to worry about.
My suggestion for expanding this study, the one thing I bring up every time I meet an investigator in the field of "lying", is that one needs to have a group of people who are "expert" liars to see if you can still pick up brain activation in the "lying" regions/patterns. In studies of language, working memory, etc., one always makes sure to keep the demands of the task even across groups, and that is an important factor for "lying" studies also. There are probably folks who have included this group; I've noticed, however, its absence in the few talks that I've gone to on the subject.