Sign Language and mother tongue

It is worth keeping in mind that the so called bilingual approach defines the Sign Language as L1 and the writing in Portuguese as L2. The present study approaches the deaf person writing ability from a theoretical perspective which tries to explain their productions and difficulties as effects of the functioning of language and not as cognitive deficits. The discussion developed here was guided by propositions from the Brazilian Interactionism, proposed and advanced by Cláudia Lemos and other authors as well as the theoretical developments put forward by the research group Language Pathology and Clinic, headed by Maria Francisca Lier-DeVitto and Lúcia Arantes