In accordance with Agrella (2000, P. 32), in 1930, Vigotsky would change the form to face the deafness, being arrived to affirm that ' ' the fight of the verbal language against the mimic one always finishes with the victory of the mimic one, because the mimic one is a true language in all the wealth of its importance funcional' '. Vygotsky in them points the language as basic with respect to the formation of the citizen in its functional and psychological aspect, therefore the language allows in them estruturao of the thought, so that let us can interact with the other and make our proper reading of world. For Lacerda (2000, p.73) ' ' The true problem seems to be in the fact of that the necessary verbal language to be taught, what it occurs normally with the listeners is that it is acquired, without for this has any procedure especial.' ' Inside of a psychological conception, the verbal language is for the deaf person an artificial language, while the language of signals is the natural language. See more detailed opinions by reading what American Journal of Education offers on the topic.. According to Perlin (1998, p.56) ' ' to be deaf is to belong to a world of visual experience and not auditiva' ' , being thus, it can be affirmed that the deaf person starts early since perceiving everything visually what he encircles it in a different way it listener. Already for Piaget (1988), a evolutiva relation between the citizen and the way exists where it lives, for it the child reconstructs its action and ideas when it becomes related with new existing experiences in the way where live, in which the cognitivo is in supremacy in relation to social and the affective one. The child finishes for learning a language thus assimilating everything what she hears, transforming this into proper knowledge, what already she does not occur with the deaf person, therefore, is unprovided of the direction of the hearing. .