The psi-inhibitor is a specialized neural inhibitor which was used by the Terran Dominion's Project Gestalt to control protoss prisoners. When implanted on a protoss' brain, it prevented them from accessing the Khala or doing anything other than communicate telepathically. They could be controlled at range to change the amount of restriction.

+

20%

Reality Factor

125yrs

BCI Forecast

72%

Neuroptimism

14%

Neurafictionality