Increases pressure around Kota's throat

Before anyone else could react, Kota whisked the lightsaber from Starkiller's belt and launched himself at the Dark Lord. Vader raised a hand and caught the general telekinetically about the throat. Kota dropped the lightsaber and desperately clutched at the invisible fingers choking him, but the pressure only increased. When his resistance was crushed, Vader threw him bodily toward the stormtroopers and turned his attention elsewhere.

The Force Unleashed I, Chapter 34, 383