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posted by martyb on Friday August 21 2015, @03:39AM   Printer-friendly
from the do-you-see-what-I-hear? dept.

By early childhood, the sight regions of a blind person's brain respond to sound, especially spoken language, a neuroscientist has found. Working with individuals who are blind offers cognitive researchers an opportunity to discover how nature and nurture, or a person's genes and their experience, sculpt brain function, the researcher says.
...
Bedny, an assistant professor in the Department of Psychological and Brain Sciences, studied 19 blind and 40 sighted children, ages 4 to 17, along with Massachusetts Institute of Technology cognitive scientists Hilary Richardson and Rebecca Saxe. All but one of the blind children were blind since birth.

They monitored the children's brain activity with functional magnetic resonance imaging while the children listened to stories, music or the sound of someone speaking an unfamiliar language. The blind children's vision portion of the brain, the left lateral occipital area, responded to spoken language, music and foreign speech -- but most strongly to stories they could understand. In sighted children and sighted children wearing blindfolds, that same area of the brain didn't respond.

The researchers concluded that blind children's 'visual' cortex is involved in understanding language.

The neuroplasticity this demonstrates bodes well for our future ability to accommodate and control cybernetic implants. Perhaps we can implant lab-grown mini-brains to supplement what our natural brains can't...


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  • (Score: 2) by morgauxo on Friday August 21 2015, @02:16PM

    by morgauxo (2082) on Friday August 21 2015, @02:16PM (#225847)

    That was already discovered in blind adults. In fact, I remember reading about an experiment where people went long lengths of time (I forget how long) with blindfolds on and they discovered it happened with them! After removing the blindfolds for some number of days their brain activity eventually returned to normal. I guess in this study they probably didn't keep the sighted kids blindfolded long enough for that to happen.

    I'm not sure why it would be surprising at all that this happens in blind children too.

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