Pros: one must subsequently think about what they want to say before it comes out of their mouth so they will have control over their worlds in a conversation. Other people in conversation will be clearer in their message so the recipient with this disorder will be able to understand them.
Cons: difficulty communicating on an intelligent level, distance from society and communication, being left behind in group conversation.
Hearing the voice can help to conceive the emotion of the character
B: the subject's diary
all other sources are not primary, and therefore trash