So, how to distinguish normal psychology from abnormal psychology?
(a) the principle of the unity of the subjective world and the objective world.
Because psychology is a reflection of objective reality, any normal psychological activity and behavior must be consistent with the objective environment in form and content. No matter who it is, no matter what social and historical conditions and cultural background, if a person says that he saw or heard something, and the objective world at that time did not stimulate him to feel this way, then we must be sure that this person's mental activity is abnormal and he has hallucinations. In addition, when a person's thinking content is divorced from reality, or thinking logic deviates from the stipulation of objective things, delusion is formed. These are the keys for us to observe and evaluate people's spirit and behavior, which we call unified (or identification) standards. As long as people's spirit or behavior loses recognition with the external environment, it is bound to be incomprehensible.
(2) The principle of internal consistency of psychological activities.
Although people's spiritual activities can be divided into knowledge, emotion, will and other parts, it is indeed a complete unity, and there is a coordinated relationship between various psychological processes, which ensures that people's reflection of the objective world is highly accurate and effective. For example, when a person meets a pleasant thing, he will feel happy, dance and tell others his inner experience happily. In this way, we can say that his spirit and behavior are normal. On the contrary, if he tells others pleasant things in a low voice, or reacts happily to painful things, we can say that his psychological process has lost coordination and consistency, which is called an abnormal state.
(3) The principle of relative stability of personality.
Everyone will form their own unique personality and psychological characteristics in the long-term life. This personality trait is relatively stable after it is formed, and it is generally not easy to change without major external changes. It always has its own relative stability and is generally not easy to change without major external changes. It always distinguishes one person from others by its relative stability. If there is a problem with the relative stability of this personality without obvious external reasons, it is also necessary to doubt whether a person's psychological activities are abnormal. In other words, we can take the relative stability of personality as one of the criteria to distinguish normal and abnormal psychological activities. For example, a person who spends money carefully suddenly spends money like water, or a person who treats others warmly suddenly becomes indifferent. If we can't find enough reasons to change his living environment, we can say that his psychological activities have deviated from the normal track.
Some technical terms of psychology are unfamiliar to you. You may not understand them at first, but you will understand them after reading them several times.