06/15/07
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mlbot
OK, a quick googling and pubmedding and I come up with this for why backwards-masking occurs:
1. The Beatles were on too many drugs.
2. its a function of our ability to discern between two different sound sources.... such as ignoring one conversation while paying attention to another.
Apparently ignoring one conversation while remembering a second one is much easier when the two conversations have stereo seperation... or spectral spectral seperation, too.
And I gather back-masking is a way for our brains to pay more attention to the loud, potentially danger-warning sounds that occur very close in time to less important, softer sounds... even if the softer sound occurs first.
I guess I've always known stereo seperation is a good way to keep two instruments "seperate"... I guess I've never though about progressively hiding one behind another by mono-ising them. Appreantly, too, its easier to mask high frequency stuff than low-frequency stuff. Hmmm.,...
