In the UK, you can do that via the Parkinson's Disease Society Tissue Bank -I'm sure they can put you in touch with their counterparts in other countries. I've donated mine on my death. The address is - Division of Nueroscience and Psychological Medicine, Imperial College of Science, Technology and Medicine, Charing Cross Campus, Fulham Palace Road, London W6 8RF tel (44-20) 020-8383-4917 email [log in to unmask] They also want "normal brains", whatever they are . (the expression on my brother's face when I told him someone wanted my brain was wonderful !) ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn