Brain Scans in PWS (IMAGE) University of California - Santa Barbara Caption (a) This image shows regions connected by tracts with a significant morphological difference between stutterer and matched controls. (b) This image shows anatomy present in controls and absent in stutterers highlighted by dark blue spheres, maroon for the opposite. Top: This image shows the left arcuate connection. Middle: The right arcuate connection. Bottom: This image shows the left temporo-striatal connection. Credit UCSB Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.