Cognitive Intervention: The principle of cognitive intervention is that a person's psychological activity and state are determined by their internal cognitive concepts. The root of an individual's psychological problem is an unreasonable cognitive concept in his mind. Theoretical knowledge to change an individual's unreasonable perception. Which of the following are not cognitive interventions. ["Before performing an operation, the medical staff tells the patient that the operation is necessary and safe with correct medical and physiological knowledge, and eliminates the patient's anxiety.", 'The school has a plan to step by step to influence the psychological activities, personality characteristics, or their psychological problems of relevant personnel in the school.', 'For depression patients, provide another conceptual system that can explain their observations and experiences to replace their original beliefs.', 'Teachers who are eager to improve their theoretical level, provide them with systematic theoretical knowledge based on their actual situation.']