INVESTIGADORES
GARCIA adolfo Martin
congresos y reuniones científicas
Título:
Reading and translation in bilinguals: A connectivity study with scalp and intracranial EEG recordings
Autor/es:
GARCÍA, A. M., MIKULAN, E., ADOLFI, F., SANTILLI, M., GONZALEZ VILAS, M., RIVERA-REI, Á., GARCÍA, M. DEL C., SILVA, W., VAUCHERET, E., CIRAOLO, C. E IBÁÑEZ, A
Lugar:
Buenos Aires
Reunión:
Encuentro; NeuroCog Buenos Aires 2015: Primer Encuentro de Neurología Cognitiva; 2015
Institución organizadora:
Universidad de Buenos Aires
Resumen:
As part of our research on the bilingual brain, we report preliminary results from a functional connectivity study on word translation. Scalp and intracranial EEG recordings were obtained from ten translators and a proficient bilingual, respectively. Distinct connectivity patterns were observed for backward translation (BT) and forward translation (FT), especially in the language-non-dominant hemisphere. Beta frequency patterns showed greater intra- and inter-hemispheric information exchange between temporo-occipital nodes for BT and fronto-temporal nodes for FT. Intracranial recordings replicated this pattern. Also, in the fusiform gyrus, the P2 component showed greater amplitude for FT, whereas a late N400 showed increased negativity for BT. These results suggest greater control demands and less effortful source-word access for FT than BT.