Soval affected by a neuro-synaptic field
A neuro-synaptic field is an artificial energy form capable of directly affecting the humanoid brain.
In 2154, Andorian commander Shran utilized a neuro-synaptic field to lower the emotional threshold of Ambassador Soval, the Vulcan official who had warned Shran of an impending Vulcan invasion of Andoria. Although reluctant, Shran utilized the field as a form of torture in an effort to discover if Soval was attempting to manipulate the Andorians with misinformation. (ENT: "Kir'Shara")