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Cogwheel Rigidity
Paolo Ghiglione, MD;
Roberto Mutani, MD;
Adriano Chiò, MD
Arch Neurol. 2005;62:828-830.
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INTRODUCTION
In 1817, Sir James Parkinson, in his handbook Essay on the Shaking Palsy, described a new disease characterized by "involuntary tremulous motion, which lessened muscular power, in part not in action and even when supported; with a propensity to bend the trunk forward, and to pass from a walking to a running place; the senses and intellect being uninjured."1(p3) The clinical picture of this newly described disease was further clarified during the 19th century, in particular by Jean-Martin Charcot and Alfred Vulpian.2 Besides providing the first description of micrographia and bradykinesia and characterizing resting tremor, they proposed naming the disorder after James Parkinson, stating that the terms shaking palsy or paralysis agitans were not appropriate for a disease not always characterized by tremor and without a typical paralysis. Other clinical features of Parkinson disease were described in the following years. This . . . [Full Text of this Article]
CURRENT CONCEPTS ABOUT THE PATHOPHYSIOLOGY OF COGWHEEL RIGIDITY
TOO MANY FATHERS
1901: Camillo Negro 1911: Harold N. Moyer 1921: Robert Nóvoa Santos
WIDER RECOGNITION
AUTHOR INFORMATION
Author Affiliations: Department of Neuroscience, University of Turin, Turin, Italy.
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