According to the theory of Universal Grammar, the primary linguistic data guides children through an innately specified space of hypotheses. On this view, similarities between child-English and adult-German are as unsurprising as similarities between cousins who have never met. By contrast, experience-based approaches to language acquisition contend that child language matches the input, with n...

Children acquire a mature language system and sometimes this system differs from that of their parents. This is a significant part of language change and understanding acquisition is key to understanding this kind of change in people's internal grammars. I outline one approach to language acquisition, based on children finding cues expressed in the input they are exposed to. This enables us to ...

In this research, it has been attempted to determine the social role of two languages, Persian and Mazandarani languages ​​in Qaemshahr and their influence on young people on the use of these linguistic species. In societies with more than one language, we see the collision of languages ​​in various forms. In other words, some consequences of this collision of language cause the loss of the imp...