Until recently, the cause of this speech disorder was largely unknown. But a new study may have just found the answer.
A Root Cause of Stuttering Is Being Pinpointed in the Brain
“Now, thanks to advances in brain imaging, more and more research — including Maguire’s own — is proving that a dominant factor behind stuttering may indeed lie within the brain. The latest research, published in the journal Human Brain Mapping, found that blood flow is reduced in the Broca’s area — the region in the frontal lobe of the brain linked to speech production — in people who stutter.”
Reduced Perfusion in Broca’s Area in Developmental Stuttering
“We detected lower regional Cerebral Blood Flow (rCBF) at rest in the stuttering group compared with healthy controls in Broca’s area bilaterally and the superior frontal gyrus. rCBF values in Broca’s area bilaterally correlated inversely with the severity of stuttering and extended posteriorly into other portions of the language loop.”
Stuttering linked to reduced blood flow in area of brain associated with language
“A new study demonstrates that regional cerebral blood flow is reduced in the Broca’s area — the region in the frontal lobe of the brain linked to speech production — in persons who stutter. More severe stuttering is associated with even greater reductions in blood flow to this region.”
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Special thanks to Jules Suzdaltsev for hosting and writing this episode of DNews!
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