With psychological principles and methods , it studies pattern of manifestation , cause , mechanism and law of development , and researches into the method of evaluating and premunition .
它用心理学原理和方法研究异常心理或病态行为的表现形式、发生原因和机制及其发展规律，探讨鉴别评定的方法及矫治与预防的措施。
premunition