Tuesday, December 14, 2010
New Study Sheds Light on How the Brain Distinguishes Speech
A new study is now showing more about how our brains can do this, and how the mechanism works. It's particularly interesting in relation to how the auditory system works when you're speaking. The study was done on hospitalized patients with epilepsy. By having patients speak and repeat words and vowels, they were able to distinguish minute parts of the brain that were active and inactive during speech.
According to Adeen Flinker, the lead author of the study, "We used to think that the human auditory system is mostly suppressed during speech, but we found closely knit patches of cortex with very different sensitivities to our own speech that paint a more complicated picture."
It's suggested in the article that people who have schizophrenia may have trouble distinguishing their own voice from the voices of others, which may lead to auditory hallucinations.