An international research group succeeded in identifying the probable origin of stuttering in the brain.
An international research group led by researchers from the University of Turku and Turku University Hospital in Finland has succeeded in identifying the probable origin of stuttering in the brain.
Stuttering may also be acquired as a result of certain neurological diseases, such as Parkinson's disease or a stroke. However, the neurobiological mechanisms of stuttering are not yet fully understood, and where it originates in the brain remains uncertain. The findings from brain imaging studies are partly contradictory, and it is challenging to determine which changes are the root cause of stuttering and which are merely associated phenomena.
"These findings explain well-known features of stuttering, such as the motor difficulties in speech production and the significant variability in stuttering severity across emotional states. As major nuclei in the brain, the putamen regulates motor function and the amygdala regulates emotions. The claustrum, in turn, acts as a node for several brain networks and relays information between them," explains Joutsa.
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