What year? When it comes to CS, you won't find anything in the psych text books. And langauge acquisition is only addressed in depth in the advanced developmental and cognitive courses. However, the texts used in the lower level courses will tell you that a deaf child of deaf signing parents acquires language in the same way that a hearing child of hearing parents acquires language...through peripheral exposure, and does not experience the same delays that a deaf child not exposed to sign experiences.
If you truly want to understand language acquisition differences between deaf and hearing, you will need to add some studies that address deafness, linguistics, and cognitive psychology as applied to deafness. And some psychological anthropology wouldn't hurt, either.
