Statistical study of the oral production of Catalan-Spanish bilingual people with aphasia

The statistical study of speech production in aphasiology poses the challenge that there is usually little data to validate models and linguistic laws. On the other hand, there is still a lack of consensus as to which model offers a more robust explanation of bilingual language processing, mainly between declarative-procedural, shared brain network models or, recently, implicit-statistical learning models. In this context, in this work we will study the statistical patterns derived from the oral production of bilingual Catalan-Spanish people with aphasia. We compare the discursive ability in their initial language (L1) and in their second language (L2). For this purpose, the Western Aphasia Battery has been adapted to Catalan and Spanish, so that the traditional analysis of aphasic production has been compared with the computational analysis. In the results section, the comparative data will be presented according to the sets of discourse analysis in L1 and L2. The discussion will address aspects related to speech complexity, as well as other statistical indicators, with regard to bilingual language processing models. We finally focus on the possibilities offered by statistical indicators for diagnosis and automatic patient assessment considering the type of aphasia.
This work was supported by the project PRO2023-S03-HERNANDEZ by the Secció de Ciències i Tecnologia de l’Institut d’Estudis Catalans, recognition 2021-SGR-Cat (01266 LQMC) from AGAUR (Generalitat de Catalunya) and grants AGRUPS-2022 and AGRUPS-2023 from Universitat Politècnica de Catalunya, and by Institut de Ciències de l’Educació (UPC). Maite Zaragoza-Cortés was supported by grant PREDOCS UB-2020. The project was approved by the CSI IDIBELL and by the Ethics Committee of the Universitat Politecnica de Catalunya (UPC).
Peer Reviewed
Objectius de Desenvolupament Sostenible::3 - Salut i Benestar
Objectius de Desenvolupament Sostenible::17 - Aliança per a Aconseguir els Objetius
Postprint (published version)