It’s a disruption of feedback.

Feedback is actually what causes the perception of ownership of action.

Artificially causing an action will make it feel like it wasn’t initiated by self even if it sort of was.

Something similar happens with schizophrenia audio hallucinations and alien hand syndrome.

Even though the action is initiated by the person it feels foreign.

Every process in the brain is a loop. Input and output. Or output and input.

When the second one is impaired (whichever that would be given the situation) there is a loss of “ownership”.