Hallucinations and hearing voices
Neurosarcoidosis Information Page | National Institute of Neurological Disorders and Stroke
A paracusia , or auditory hallucination ,  is a form of hallucination that involves perceiving sounds without auditory stimulus. A common form of auditory hallucination involves hearing one or more talking voices. This may be associated with psychotic disorders, and holds special significance in diagnosing these conditions. There are three main categories into which the hearing of talking voices often fall: a person hearing a voice speak one's thoughts, a person hearing one or more voices arguing, or a person hearing a voice narrating their own actions. Hallucinations of music also occur. In these, people more often hear snippets of songs that they know, or the music they hear may be original, and may occur in normal people and with no known cause  Other types of auditory hallucination include exploding head syndrome and musical ear syndrome. In the latter, people will hear music playing in their mind, usually songs they are familiar with.
The Impact of Deafness on Hallucinations and Delusions
Facial trauma , also called maxillofacial trauma , is any physical trauma to the face. Facial trauma can involve soft tissue injuries such as burns , lacerations and bruises , or fractures of the facial bones such as nasal fractures and fractures of the jaw, as well as trauma such as eye injuries. Symptoms are specific to the type of injury; for example, fractures may involve pain, swelling, loss of function, or changes in the shape of facial structures.
They typically begin after a traumatic event and following the development of trauma-related disorders. They often contain themes related to trauma. Auditory hallucinations in chronic trauma disorders are commonly negative in content, heard inside the head or both inside and outside the head, occur relatively frequently, and cause distress.