Mirrored brain organization: Statistical anomaly or reversal of hemispheric functional segregation bias?

ABSTRACT: Humans demonstrate a prototypical hemispheric functional segregation pattern, with language and praxis lateralizing to the left hemisphere and spatial attention, face recognition, and emotional prosody to the right hemisphere. In this study, we used fMRI to determine laterality for all five functions in each participant. Crucially, we recruited a sample of left-handers preselected for atypical (right) language dominance (n = 24), which allowed us to characterize hemispheric asymmetry of the other functions and compare their functional segregation pattern with that of left-handers showing typical language dominance (n = 39). Our results revealed that most participants with left language dominance display the prototypical pattern of functional hemispheric segregation (44%) or d

SUBMITTER: Gerrits R 

PROVIDER: S-EPMC7322015 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature