 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
In Reply to: Re: No… posted by Pat D on November 17, 2002 at 08:27:35:
The evidence offered was PET scans showing brain activity in areas not involved when listening to music with no ultrasonic content. I can't see why intermodulation products in the audible range should excite such activity when normal musical content in the same range didn't.It seems reasonable to me for the researchers to assume that a different part of the brain is responding to the ultrasonic frequencies given the results. There could be all sorts of reasons for that amd it doesn't contradict the paper you referred to which was about heard differences rather than about perception in a non-auditory area of the brain.
More work required by both research teams?
David Aiken
Follow Ups:
More work is always needed. Spectral analysis showed the intermodulation effects, and DBTs showed they were audible. Whether that can be correlated with the brain scans is another matter, but we'll never know unless the intermodulation effects are eliminated. As I said, the effects may be due to intermodulation effects, and we can hardly know otherwise until the tests are done under conditions where they do not occur. I don't think we disagree here.
____________________________________________________________
"Nature loves to hide."
---Heraclitus of Ephesus (trans. Wheelwright)
This post is made possible by the generous support of people like you and our sponsors:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
