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In Reply to: Re: No… posted by John Escallier on November 13, 2002 at 19:14:00:
have an effect the PET system. It is just a fancy geiger counter :-) I do not know about the EEG, that is way outside of my field of expertise,I think both could be easyly verified by taking measurements without the subjects present and with and without US fields.
BTW i like this study because it does not rely on what the subjects percieve, but rather on what stimuli their brain reacts to.
Follow Ups:
Pet is "Positron Emmision Tomography. But it has a 2mm accuracy, as that is the average distance a gamma ray travels before impact and emission of positron; giving a rather fuzzy picture of brain activity with respect to tagged molecules. Or is it the other way around... So confusing..Now, EEG, "electro"... there's a measurement that an EE can handle...
Actually, they do PET stuff here. I give tours to the college students and professors occasionally, and sometimes I actually learn about it.
But, what scares me is the fact that the medical people who do the research have no idea how the systems interact, and sometimes that can bias the results.
John,I do medical imaging software for living, so PET is one of the areas that i had to struggle with for a number of years :-). In any case the verification of the measurement accuracy is quite simple, as i mentioned in the previous post. Whether they actually calibrated their measurement is not clear from the article, i hope they did. (Nobody wants to be in the cold fusion vs. red cooler discussion.) I would love to see independent verification of their results since they do go against the grain of conventional wisdom. Better way of measuring this would be using functional MR (Magentic Resonance). The effect of HF sound field on the pick up coils would need to be studied more carefully, i suspect an open MR would be more susceptible to interference. I do not see how you could do this with a traditional small bore MR.
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