With the increase of people’s awareness of health, the methods and means to discern whether a human being is normal physiologically normal or not have been clarified. At present, more and more people are paying attention to mental health, how to determine whether a person is psychologically normal or not? What are the criteria for determining whether a person is psychologically normal or not? What is abnormal psychology? To this day, research perspectives differ, and there are differences in the views and definitions of abnormal psychology among various schools of thought, and it is still very difficult to clearly define abnormal psychology. The general explanation is that the individual’s mental processes and psychological characteristics are abnormally altered, and the brain’s structure and function are dysfunctional; or it refers to the disorder and distortion of a person’s reflection of objective reality. In fact, psychological normality and abnormality are relative, and absolute health and normality are hard to find. Normal and abnormal may be fundamentally different in some cases, but, in more cases, they may be different in degree. Therefore, there is no completely unified and concise standard for determining whether a person is psychologically abnormal and the degree of psychological abnormality. If a person is able to act in a socially appropriate manner and his or her psychological state and behavior pattern can be understood by ordinary people, even if he or she sometimes experiences mild anxiety or depression, it cannot be considered that his or her psychology is beyond the normal range. In other words: psychological normalcy is a range of normality within which different differences are allowed to exist. Psychological problems People often encounter in their lives, and confusion in psychological aspects related to personal development (job-seeking, career selection, social adaptation, emotional marriage, interpersonal relationships, family relationships, etc.), although individuals may consider these problems troubling, and cause a certain impact on their lives, studies and work, but because of their short duration, easier to solve, for most people are not accompanied by somatic symptoms, no drug treatment is required Therefore: This transient poor state of mind does not belong to the category of disease and is not called a psychological abnormality. Common sense distinction (layman’s distinction between normal and abnormal psychology) 1. when strange and bizarre speech, thoughts and behaviors occur; 2. when excessive emotional experiences and expressions are presented; 3. when one’s social functioning is incomplete; 4. when the social life of others is affected. Psychological distinction I. The principle of unity between subjective and objective world Any normal mental activity or behavior, its form and content must be consistent with the objective environment. If a person says he sees or hears something, but there is no stimulus in the objective world that causes such perception, then it is considered that the person’s mental activity is abnormal and produces hallucinations. Second, the principle of internal coordination of mental activity Human mental activity is artificially divided into cognitive, emotional, affective and behavioral components, but, in fact, he is a complete unity, with a coordinated relationship between various mental processes. If a person tells others pleasant things in a low tone, it means that his mental processes have lost their coherence. Third, the principle of relative stability of personality Each person in their own long-term life path to form their own unique personality psychological characteristics, relatively stable, in the absence of major external changes, generally not easy to change. If a person who is very careful with money suddenly squanders money like dirt and cannot find enough reasons in his life environment to prompt him to change, then it can be said that his mental activities may deviate from the normal track. Criteria for judging psychological abnormality Normal and abnormal psychology is a gradual continuum, and the distinction is often relative; however, there is a relative boundary between the two. One, introspective subjective experience criterion This experience criterion refers to two aspects One refers to the subjective feelings of the visitors, that is, they feel anxious, depressed, or have their own unspecified uncomfortable feelings; in some cases, there may be psychological abnormalities even without such uncomfortable feelings, such as the death of a loved one, if there is no grief at all, psychological abnormalities should be considered. Second, from the physician’s point of view, the physician judges whether the visitor is psychologically normal or not based on his or her professional theory and practical experience. Of course, there is a certain degree of subjectivity in this judgment. However, because most physicians have received professional standardized education and clinical practice, the evaluation criteria are usually similar among physicians. Therefore, most psychological disorders can still be agreed upon between physicians of different specialties. However, disagreement may exist for a small number of patients. Statistical criteria Scientists have used the principles of mathematical statistics to study the psychological characteristics of people and found that most people’s psychological phenomena are in a state of continuous change. In this range, most people in the middle belong to the psychological normal range, while the two ends far from the middle are considered “abnormal”. Therefore, to judge whether a person is psychologically normal or not, it can be assessed by psychological tests, and the degree of deviation from the average value of a psychological characteristic in the consultation is used to decide. The greater the deviation from the average, the more abnormal it is. Of course, this method of determining psychological normality is also artificially defined, and there are certain limitations in clinical use. However, there are flaws in this criterion, for example, people with extraordinary intelligence or extraordinary creativity are very few in the population, but are rarely considered pathological. Third, biological criteria Many medical doctors believe that human psychological phenomena are caused by changes in some aspects of the body, which may be pathological, at the molecular level, or even genetic in nature. If the above changes can be detected by some kind of medical instrumentation, then the doctor can determine that the person has a psychological disorder. This is a very important objective criterion, but it is not satisfactory, because nowadays most of the psychological disorders cannot be diagnosed by some kind of medical instruments to find some kind of physical abnormality. The behavior of normal people is generally in line with social requirements and moral standards. If a person cannot behave in a socially acceptable way, if his behavior is not accepted by the people around him or even by his friends and family, or if it differs greatly from his previous behavior, he can be considered to have a psychological disorder. The above four criteria are of some value in determining whether a person is psychologically normal or abnormal, but they often cannot be used alone to solve all problems. In practical application, experienced doctors should analyze various mental imaginations scientifically through a large number of clinical practices, and at the same time, consider the influence of age, region, era, social customs and culture on mental imagination, and judge whether the counselor is psychologically normal or not through a flexible combination of various factors. Abnormal psychology from mild to severe (according to the degree of psychological deviation from the norm) 1.Mild psychological disorder: the ability to live and social function is basically intact, able to work and live normally, not much different from normal people from the surface such as: obsessive-compulsive disorder, anxiety disorder and other kinds of neurosis. 2.Severe mental disorder: unable to carry out normal social life, the function of human mental activity is seriously impaired such as: schizophrenia, reactive psychosis, affective psychosis, etc. 3, psychophysiological disorders: such as: primary hypertension, coronary heart disease, diabetes, asthma, peptic ulcer, functional gastrointestinal disease, premenstrual mood disorders and other psychosomatic diseases. 4.Psychological disorders associated with somatic organic diseases. 5.Personality disorders. 6, behavior problems and bad behavior habits: such as: tobacco addiction, alcohol addiction, drug addiction, anorexia and bulimia, Internet addiction, etc. 7.Psychological disorders arising from special conditions: such as: heroin, tobacco and alcohol and other states of mental disorders.