2022-12-052022-12-052017-12ORTIZ-PREUSS, Elena; RODRIGUES, Taiany Braz. Produção de fala bilíngue: avaliando similaridade linguística, custos de troca entre línguas e sistema atencional. Ilha do Desterro, Florianópolis, v. 70, n. 3, p. 63-79, set./dez. 2017. DOI: https://doi.org/10.5007/2175-8026.2017v70n3p63. Disponível em: https://periodicos.ufsc.br/index.php/desterro/article/view/2175-8026.2017v70n3p63. Acesso em: 25 nov. 2022.e- 2175-8026http://repositorio.bc.ufg.br/handle/ri/21645This article presents a study which aimed at analyzing both linguistic similarity and switching cost efects on the attentional network task and picture-naming task, within the language-switching paradigm. Reaction time and accuracy of responses in these tasks were observed in bilingual Portuguese-English and Portuguese-Spanish participants’ performances. he results did not show any signiicant diferences in the means between the groups. On the other hand, in the within-subjects comparison, statistically signiicant diferences were observed when the participants switched from the L2 to the L1, evidencing an asymmetrical switching cost. Some correlations were also found between the two tasks in the Portuguese-Spanish bilingual group. hese results are interpreted as indications of linguistic similarity efects in both naming and attention tasks.porAcesso AbertoSimilaridade linguísticaCusto assimétricoNomeação de figurasAtençãoBilinguismoLinguistic similarityAsymmetric costPicture namingAttentionBilingualismArtigohttps://doi.org/10.5007/2175-8026.2017v70n3p63