[转帖]our brains filter out unwanted noise

“Like the mute button on the TV remote control, our brains filter out unwanted noise so we can focus on what we’re listening to. But when it comes to following our own speech, a new brain study from the University of California, Berkeley, shows that instead of one homogenous mute button, we have a network of volume settings that can selectively silence and amplify the sounds we make and hear.”

http://newscenter.berkeley.edu/2010/12/08/auditory/

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