<prompt> A man had a fight with his neighbour. The next day he staed feeling that police is following him and his brain is being controlled by radio waves by his neighbour. The history is suggestive of which psychiatric signsymptom:Thought inseionPassivityDelusion of persecutionObsession  <response>: This question is controversial. Passivity experiences are those in which patient experiences that his thoughts, emotions, actions or sensations are controlled influenced by others. Passivity of thought is described as thought inseion, withdrawal and broadcast. Here the description that brain is being controlled by radio waves by neighbor is indicative of passivity. In the questions the history for delusion of persecution i.e., police is following is also present. Given that passivity experiences are more impoant diagnostically, a better answer would be passivity. 