Linguistic view on brain-computer interface

Being a sort of communication, Brain-Computer Interface (BCI) uses a language, and therefore can be an object of linguistic consideration. This fact gives rise to two questions. What analogies can be found between BCI and linguistic approaches, methods, experience; what hypothesis about applicability of linguistics to BCI can be proposed? What challenges for linguistics can result from prospective development of BCI? The paper considers both issues. For the first it draws parallels between BCI (particularly training the BCI skill) and field linguistics. For the second the paper considers challenges connected with general and semantic linguistic issues.