When blind people use another sense-touch or hearing, for example-to substitute for sight, the brain's visual cortex becomes active, even though no images reach it from the 9 optic nerve.

当盲人使用另一种官能——例如触觉或听觉——来代替视觉时，其大脑的视觉皮层就会活跃起来，尽管它没有接收到来自视觉神经的影像。

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Tactile communication USES touch rather than sight or hearing.

触觉交流，是用触摸感觉，而不是用看或听来感觉。

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"Now the question is: Do blind people have that same or similar functional organization, that these modules actually stay put and just get rededicated to touch and hearing?

VOA: special.2010.10.13

The added bulk of an iPhone or iPod touch could be a deterrent for someone whose focus is on hearing music, especially while jogging or working out at the gym.

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