Transient selective aphasia in highly proficient bilinguals triggered by electrical stimulation of the left superior temporal gyrus.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 40186800.
- Also identified by DOI 10.1007/s00701-025-06508-5 and PMC identifier 11972172.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Are an individual's first (L1) and second (L2) languages represented in shared or distinct brain territories? Using intraoperative electrical stimulation mapping (ESM) in two Basque-Spanish bilinguals with non-growing lesions-thus avoiding confounding effects of adaptive plasticity-this study identified distinct language representations within the left temporal lobe. Stimulation of posterior and anterior superior temporal gyri induced language-selective aphasias, whereas stimulation of the mid-temporal region and inferior fronto-occipital fasciculus produced naming errors without language specificity. These findings highlight both shared and distinct loci for L1 and L2, advancing our understanding of bilingual brain organization.
Medical subject headings
- Multilingualism
- Temporal Lobe
- Aphasia