The studies pautados here, search to offer to a quarrel on the relation of the language and cognition and brain. The relation enters this two aspects in sends the directions to them that interact with the sociocultural questions and intersubjetividade. The functioning of the brain of the deaf person differs in parts from the brain from a falante, therefore, deficient the auditory one does not know sounds, then, if it cannot affirm that listening sounds in its mind, however, for the not deaf person, the thought produces sounds according to PINKER. ' ' (…) suddenly the sounds if had transformed into a choir of duendes bawling. Something thus: (beeper bop-bop).HUMPTY-DUMPTY (…). I verified the oscilloscope: two sequncias of tones, as programmed. The effect had of being percepivo. With a little of effort it obtained to go for front and it stops backwards listening to the sound as bips or as duendes.

(195, p.627). Ahead of this affirmation, a new questioning confides. It has a deaf brain? But to answer so complex questionings, she is necessary first to understand the relation between thought and speaks. Vigotsky says: ' ' The meaning of a word represents a so narrow amalgam of the thought and the language, that is difficult to say if it deals with a phenomenon of says or a phenomenon of pensamento' '. (150, P. 190) Of this form, we infer that even for the proper theoreticians, is a delicate subject of to be boarded and difficult affirmations, composing theories on theories, in intention to point with respect to one same route, codifying the link being thought and speak and as if of the o relation process. Vigotsky, speaks that a word without meaning is an empty sound, seeming the meaning is a component of speaks, but for psychology the meaning is a phenomenon of the thought.