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Summary of strategies of programming GPi DBS based on VTAs.
| Desired activation target | Additional criteria | Recommended vertical spacing | Recommended configurations |
|---|---|---|---|
| Posterolateral “sensorimotor” GPi only | - | 0.5 mm or 1.5 mm | 1, 2a, 3 |
| - | 0.5 mm | 2b, 4, 5 | |
| GPi, medial medullary lamina and/or GPe | less GPi activation |
1.5 mm | 2b, 4 |
| more GPi activation | 0.5 mm | 2b, 5 |
