Hallucination of soliloquy: speaking component and hearing component of schizophrenic hallucinations.

In the present paper, two cases of schizophrenia with hallucinatory soliloquy are presented, and the concept of the symptom, hallucination of soliloquy is proposed. In hallucination of soliloquy, while having the experience of hearing his own voice, the patient has a conviction that he speaks out aloud, without actually vocalizing. It is an abnormal experience of both speaking and hearing; that is, a combination of auditory hallucination and motor hallucination. It is considered that hallucination of soliloquy is an exemplar of schizophrenic hallucinations.