Caption Broca's area, located in the frontal lobe of brain, plays a key role in expressive speech. Blue regions represent areas of decreased blood flow in children and adults with stuttering when ...

This area is located in the inferior frontal gyrus area of the frontal cortex and is a part of the wider Broca’s area. The ...

Wernicke's area is another part of the brain. This is named after the German scientist Carl Wernicke (1848-1905). Shortly after Broca wrote about his findings, Wernicke began his own research.