Recently, a large study of twin males who were registered on entry into the U.S. armed services in the early 1940s, failed to support the notion that heredity plays a major role in the cause of Parkinson's disease. However, this study did suggest that heredity might influence the development of Parkinson's disease in younger individuals. A variety of symptoms can be associated with Parkinson's disease. Victims of this condition who recovered were often found to develop parkinsonian features weeks to even years following recovery from the encephalitis. Caused by an accumulation of small strokes.
Antiparkinsonian medication offers little benefit.
Involuntary contraction of a muscle or a group of muscles. Abnormal involuntary movements that can be characterized as writhing movements and can include dystonic movements. These movements can be seen in a variety of disorders such as Huntington's Chorea, the dystonias and Tourette syndrome. These movements are commonly caused by levodopa and other antiparkinsonian medication and are often seen as a delayed reaction to antipsychotic medication such as Haldol. A generic term referring to clinical findings similar to Parkinson's disease, but occurring in variety of other neurological disorders.