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Jay Kadis
 
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Default Analog/Digital Pepsi Challenge...(long-ish)

There is a problem using MRI (or fMRI) with audio cues: you cannot use dynamic
headphones in or near an MRI machine. Having done some fMRI experiments using
audio stimuli, it is not possible currently to deliver high quality audio to a
subject in an MRI machine. It was thought that electrostatic headphones might
work, but to my knowledge no one has yet succeeded. (Heaphones are necessary
because the MRI machine itself is very loud.)

We used the plastic-tube type headphones and verified that our sine-wave test
tones were not altered by the resonances of the tubing (quite by chance).
Full-spectrum audio stimuli are still not available.

We also wanted to have rappers scanned to see if they use the speech or music
areas of their brains, but no one wants to fund such a study. Wonder why?

-Jay
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