"Currently, the main scientific theories of voice hearing suggest that hallucinated voices occur through a combination of atypical activity in the language and memory systems of the brain and a tendency to attribute internally generated mental phenomena as coming from an external source. The idea is that voice hearers think phrases to themselves as part of their internal monologue but hear them as coming from outside due to problems with adequately distinguishing internally from externally generated experiences. There is lots of evidence from experimental studies to back up these theories, but they don’t really address the issue of how voices are perceived as social identities."