Study: Speech processing requires both sides of our brain

Posted on January 16, 2014
Study: Speech processing requires both sides of our brain

A new study by Cogan et al proposes that speech processes occur on both sides of the brain and are distinct from language, which occurs on one side, typically on the left. This suggests a revision to the standard model of how speech is linked to language with some processes going through a “bilateral sensory-motor interface”. Credit: Greg Cogan and Bijan Pesaran
We use both sides of our brain for speech, a finding by researchers at New York University and NYU Langone Medical Center that alters previous conceptions about neurological activity. The results, which appear in the journal Nature, also offer insights into addressing speech-related inhibitions caused by stroke or injury and lay the groundwork for better rehabilitation methods.

“Our findings upend what has been universally accepted in the scientific community—that we use only one side of our brains for speech,” says Bijan Pesaran, an associate professor in NYU’s Center for Neural Science and the study’s senior author. “In addition, now that we have a firmer understanding of how speech is generated, our work toward finding remedies for speech afflictions is much better informed.”

Read more at: MedicalXpress