Camill, et al, I plan to write Dr. Callender first and explain my interest in his work and explain the pd discussion list, etc., and hopefully if he has a computer hooked to the 'net, he can e-mail some sort of message to the list. Like I mentioned about the tape I have of a lecture he gave, he mentions among other diseases and symptoms, a high-school girl, whom after having been exposed to some sort of injection roofing insulation, now has these pd-like symptoms which are triggered by different smells. (And note that many pd'ers also have olfactory hallucinations). If he cannot e-mail, then perhaps he would let me post his reply letter to the list that way. I figure I'll write him this weekend before calling, just to introduce myself slowly and give him the opportunity to respond at his leisure (also it'd be difficult to have a really good initial conversation for me from work). I'm really hoping he'll be able/willing to do this. Also, his background is originallly physics, as is mine (and I've got pd), and is six or so physics professors at Penn State who've got pd, and 2-3 physics profs at Pittsburgh who've also got it . One other person also wrote in here recently that his father, a former physicist, also has it, probably from some chemical exposure. I guess the moral is - don't study physics!! (Maybe brain cells self-destruct after too many long hours in utter confusion trying to understand quantum mechanics! - not implausible!). Take care everyone! Wendy