No evidence of altered language laterality in people who stutter across different brain imaging studies of speech and language.

ABSTRACT: A long-standing neurobiological explanation of stuttering is the incomplete cerebral dominance theory, which refers to competition between two hemispheres for 'dominance' over handedness and speech, causing altered language lateralization. Renewed interest in these ideas came from brain imaging findings in people who stutter of increased activity in the right hemisphere during speech production or of shifts in activity from right to left when fluency increased. Here, we revisited this theory using functional MRI data from children and adults who stutter, and typically fluent speakers (119 participants in total) during four different speech and language tasks: overt sentence reading, overt picture description, covert sentence reading and covert auditory naming. Laterality indices were calcu

SUBMITTER: Demirel B 

PROVIDER: S-EPMC11430911 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature