The Physuical Therapy Department of the University of Maryland [Eastern Shore Campus, Princess Ann, Maryland] is starting a study of the differences in perceived physical abilities and physical/occupational therapy needs of Parkinson's patients in the 'off' and in the 'on' condition. PD patients will perform certain tasks after being off ldopa and other PD medication for at least twelve hours, then take medication, wait for the medication to 'kick-in,' and then do the same tasks again. The tasks iclude tthe usual finger taps, brushing teeth, dialing a rotary phone, rising from a sitting position, walking, writing, etc. The sessions will be videotaped. Conversation will take place during the sessions. The conversation will be on tape also. If there is a speech therapist or an aspiring speech therapy student who could and would use this raw data in the form of recorded voices on the video tape, let me know.