Decorticate rigidity occurs with which of the following?
A. Lesions of the medulla
B. Vascular lesions of the anterior choroidal artery
C. Lesions superior to the midbrain
D. Lesions to the cerebellar lobes
E. All of the above
ANS: C
Rationale: In decorticate rigidity, the entire brainstem is intact and the lesion is superior to the midbrain.
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