Hi, I'm new to this list. I'm a graduate student in speech pathology at Indiana University. I'm doing my master's thesis on PIGD (Postural Instability Gait Disorder) dominant type of PD vs tremor dominant type of PD. I'm doing a literature review of the pathological anatomical & physiological differences between these 2 types. I've been interested in PD for a long time, & I know a few people who have it. I'm sure I'll learn a lot from this list. Kim Russell ([log in to unmask])