Sunday, March 25, 2007

Study of Hearing Speech in Noise

Scientists in Great Britain show how the brain makes sense of speech in noisy environments:

In an ordinary setting, where background noise is minimal and a person's speech is clear, it is mainly the left and right temporal lobes that are involved in interpreting speech. However, the researchers have found that when hearing is impaired by background noise, other regions of the brain are engaged, such as the angular gyrus, the area of the brain also responsible for verbal working memory -- but only when the sentence is predictable.

The study was intended to simulate the everyday experience of people who rely on cochlear implants.....

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