Hemiballismus is associated with damage or dysfunction of which of the following structures?

Question

Quizplus · Accepted Answer

Hemiballismus is most commonly associated with damage or dysfunction of the subthalamic nucleus, which is located in the subthalamus. Lesions in this area disrupt the normal balance of the direct and indirect pathways in the basal ganglia, resulting in involuntary movements of the contralateral limbs. Damage to the other structures listed (thalamus, caudate nucleus, red nucleus) can also result in movement disorders but are not typically associated with hemiballismus specifically.

Hemiballismus Is Associated with Damage or Dysfunction of Which of the Following