Atypical brain torque in boys with developmental stuttering.
The counterclockwise brain torque, defined as a larger right prefrontal and left parietal-occipital lobe, is a consistent brain asymmetry. Reduced or reversed lobar asymmetries are markers of atypical cerebral laterality and have been found in adults who stutter. It was hypothesized that atypical brain torque would be more common in children who stutter. Magnetic resonance imaging-based morphology measures were completed in boys who stutter (n = 14) and controls (n = 14), ages 8-13. The controls had the expected brain torque configurations whereas the boys who stutter were atypical. These results support the hypothesis that developmental stuttering is associated with atypical prefrontal and parietal-occipital lobe asymmetries.
Louisiana State University Health Sciences Center, New Orleans, Louisiana 70112, USA. jmock@lsuhsc.edu
Jeffrey Ryan
JR
Mock
Janet N
JN
Zadina
David M
DM
Corey
Jeremy D
JD
Cohen
Lisa C
LC
Lemen
Anne L
AL
Foundas
D000293:Adolescent; D001921:Brain / Q000473:pathology*; D001931:Brain Mapping; D002648:Child; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D007360:Intelligence; D007802:Language; D008279:Magnetic Resonance Imaging; D008297:Male; D009483:Neuropsychological Tests; D013342:Stuttering / Q000473:pathology*