Thought this was interesting: According to the Faculty of 1000 Medicine [url="http://f1000medicine.com/article/lrqbfysb40nj39h/id/3202958"]MRIs change brain activity[/url].
Thoughts/comments?
New research suggests MRIs change brain activity. (spam lite please)
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New research suggests MRIs change brain activity. (spam lite please)
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The study is published in Neuroimage, a high-impact journal for brain research, and the first author, Nora Volkow, is a leading scientist in the field and also the head of NIDA. This paper is very important and will create a lot of waves in the fMRI world. Together with the dead-fish study, I think it's a very funny paper 
"There are in fact two things, science and opinion; the former begets knowledge, the latter ignorance." - Hippocrates
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I almost participated in fMRI calibration tests two years ago. Sounded interesting at the time, but as it turned out I had a chunk of metal in my mouth that disqualified me. Perhaps a good thing then?
[INDENT]'..tolerance when fog rolls in clouds unfold your selfless wings feathers that float from arabesque pillows I sold to be consumed by the snow white cold if only the plaster could hold withstand the flam[url="http://bit.ly/foT0XQ"]e[/url] then this fountain torch would know no shame and be outstripped only by the sun that burns with the glory and honor of your..'[/INDENT]
Tricky, it's highly unlikely that the very low and very transient electromagnetic field used for fMRI would cause any harm or lasting effects. What is interesting with Nora's paper, is that it may be a confounding factor in all fMRI studies used to identify brain regions that are activated when various tasks are performed, as well as differences in activation between patients and normal control subjects.
"There are in fact two things, science and opinion; the former begets knowledge, the latter ignorance." - Hippocrates
Moderator of Planescape: Torment, Diablo I & II and Dungeon Siege forums