The zona incerta is a thin sheet of grey matter in the subthalamus, lying between fibre bundles below the thalamus. It connects widely across the brain and influences movement, attention and pain.
| Location | Subthalamus, between the thalamic and lenticular fasciculi, above the subthalamic nucleus |
|---|---|
| Parts |
|
| Connections | |
| Blood Supply | Posterior cerebral and posterior communicating artery perforators |
Integrates sensory and motor information and helps gate attention and movement.
The caudal zona incerta is a deep brain stimulation target for essential tremor and Parkinson tremor, sometimes chosen over the thalamus.
Action tremor that can be treated by stimulation of the caudal zona incerta.
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