It has no way of directly knowing what's going on at all-it doesn't even have pain centers.

Deep, deep they went into the heart of his pain centers.

"Introduced a Void into the brain and destroyed the pain centers?"

"With a slight detour through your pain center for impertinence!"

It is now clear that there is no single pain center in the brain.

Your nerves and pain centers are under my control.

Then the pain center is activated, and the human suffers.

"The mind has great capacities for controlling the pain centers."

"They have a greater control over their pain centers than other people do."

He'll shut off their pain centers and make them feel better.