Reading Braille activates the brain’s visual area

by JOE KLOC

Whether reading the word “orange” in Braille or in English, the same brain area identifies it. The idea that different sensory inputs are necessarily processed in disparate regions may be obsolete. IMAGE/Aurora photos

Does a blind person reading Braille process words in the brain differently than a person who reads by sight? Mainstream neuroscience thinking implies that the answer is yes because different senses take in the information. But a recent study in Current Biology finds that the processing is the same, adding to mounting evidence that using sensory inputs as the basis for understanding the brain may paint an incomplete picture.

Researchers in Israel, Canada and France used brain imaging to observe the neural activity of eight blind subjects as they read Braille. They found that although the blind subjects were using their sense of touch, their brains showed activity in the same so-called visual region that sighted people use when they read.

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