A Weak Shadow of Early Life Language Processing Persists in the Right Hemisphere of the Mature Brain.

ABSTRACT: Studies of language organization show a striking change in cerebral dominance for language over development: We begin life with a left hemisphere (LH) bias for language processing, which is weaker than that in adults and which can be overcome if there is a LH injury. Over development this LH bias becomes stronger and can no longer be reversed. Prior work has shown that this change results from a significant reduction in the magnitude of language activation in right hemisphere (RH) regions in adults compared to children. Here we investigate whether the spatial distribution of language activation, albeit weaker in magnitude, still persists in homotopic RH regions of the mature brain. Children aged 4-13 (n = 39) and young adults (n = 14) completed an auditory sentence com

SUBMITTER: Martin KC 

PROVIDER: S-EPMC9169899 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature