Musical hallucinations and palinacousis.

So far, little attention has been paid to the similarities between musical hallucinations and palinacousis. Since the authors found a 75-year-old woman suffering from both symptoms, the similarities were investigated. As a result, musical hallucinations have all the four components of palinacousis structurally, although there are some differences in content. Thus, there exist substantial similarities. Moreover, both symptoms are often associated with seizure activity and there have been several case reports where anticonvulsants were successfully used to treat both symptoms. These findings indicate the possibility that there may exist a common pathway generating musical hallucinations and palinacousis.