Presentation
Analogous to Romberg's sign, the abnormal posturing is most pronounced when the eyes are closed as visual inputs are unavailable to guide corrective movements. Paradoxically, eye closure may decrease the amount of movement as the visual cues probably trigger corrective movements which return the limb to the desired "baseline" allowing a new phase of involuntary drift before a subsequent corrective phase occurs.
Read more about this topic: Pseudoathetosis
Famous quotes containing the word presentation:
“He uses his folly like a stalking-horse, and under the presentation of that he shoots his wit.”
—William Shakespeare (1564–1616)