Cognitive development in the brain has the largest influence on language acquisition, because variations in the initial brain structure can make qualitative differences in language acquisition.
Cognitive development and social interaction affect language acquisition. Lateralization of linguistic functions in the brain takes place very early in life. The left hemisphere is dominant for language , although the right hemisphere participates as well. A sensitive period exists before lateralization of language is firmly fixed and therefore, it is crucial that no damage occurs that will affect cognitive development. Language is a social act. ...
Cognitive development and social interaction affect language acquisition.