Explain why thought broadcasting is grouped together with thought insertion and thought withdrawal as "passivity phenomena" despite the disturbance running in the opposite direction.

All three phenomena share a common underlying disturbance: a loss of the ordinarily automatic sense that one's own thoughts belong exclusively to oneself and are under one's own control. In thought insertion and thought withdrawal, this loss is experienced as an outside force acting on the contents of the mind — adding to it or taking from it. In thought broadcasting, the same underlying loss of boundary is experienced instead as an outward leakage: the thoughts remain the patient's own, but their normal privacy has failed. Grouping them together reflects this shared mechanism — a breakdown in the felt boundary around one's own mental life — even though the direction each individual patient describes can differ, and often more than one of these experiences occurs together in the same person.