Subject: musical hallucinations From: Diana Deutsch <ddeutsch(at)UCSD.EDU> Date: Wed, 7 Aug 2002 15:37:11 -0700A number of researchers have indeed suggested that musical hallucinations constitute the auditory equivalent of the Charles Bonnet syndrome, since they are so frequently associated with hearing loss. However, they also occur in people who have no hearing loss, so this can only be part of the picture. It may account for a subset of the cases, though. Cheers, Diana Deutsch >All, >There is a type of visual hallucination that occurs in >neuropsychiatrically normal individuals that is remarkable because it is >like normal seeing, but the detail can be greater and have a bizarre >character, sometimes even amusing. These hallucinations are not under >voluntary control and when they occur in those with deteriorating visual >ability it is described as the Charles Bonnet syndrome. Imaging studies >show that the visual association cortex is active. It might be that the >imagery mechanism in this case is providing a 'realistic' version. Does >the process here have any relevance to the observations so far on >musical hallucination?. > >Regards >Paul Satchell -- ----------------------------------- Diana Deutsch Professor of Psychology Department of Psychology University of California, San Diego La Jolla, CA 92093, USA 858-453-1558 (tel) 858-453-4763 (fax) ddeutsch(at)ucsd.edu http://www-psy.ucsd.edu/~ddeutsch -----------------------------------