Researchers at the University of Alberta's Institute for Stuttering Treatment and Research (ISTAR) used Magnetic resonance imaging to examine brain development in both children and adults who stammer.
They found abnormal development of grey matter in Broca's area, the region of the frontal lobe responsible for speech. It was the only abnormality found in the 30 regions of the brain the research team investigated.
"In every other region of the brain we studied, we saw a typical pattern of brain matter development. These findings implicate Broca's area as a crucial region associated with stuttering," said Deryk Beal, ISTAR executive director and an assistant professor in the Faculty of Rehabilitation Medicine.
Beal said the findings support the need for an even larger long-term study of brain development from infancy to adulthood to look at how brain growth in speech areas differs between children who stutter, those who don't, and kids who stutter and later recover.
The study was published in the journal Frontiers in Human Neuroscience.

Latest News from Lifestyle News Desk