Figure 1 shows the number of topics that can identify the subject that contains a document. The different metrics used in the thematic estimate agree that at least 20 themes are optimal for identifying relevant information from the mental health and personality dataset. A psychologist named Hans Eysenck would further reduce the list of characteristics, suggesting that there are only three: extroversion, neurotitis and psychotics. 9. Carpenter J, Bohnke JR, Eschstruth R, Mathews A, Wenzel K, Leising D. The latent structure of personality function: studying the criterion has the alternative pattern of personality disorders in DSM-5. J Abnor Psychol (2015) 124:532. doi: 10.1037/abn0000059 A more innovative impetus is given by research on neuropsychological functions and personality pathology that are currently related to borderlin, antisocial and schizoid disorders. Although the relationship between frontal lobes activity and the social functioning of subjects has always been known, it is only in the last ten years that a systematic interest has been shown for this study.

There is a risk in this research approach that sometimes seems to give way to the reductionist temptation to put personality in the frontal lobes (47). This study examines the nature of clinical personality research in recent years and is at a critical time when new approaches to personality research are being explored, which appear increasingly essential to the often dramatic effects of mental health and social well-being. In their most tragic expression, these disorders are at the root of problems related to crime, sexual violence, abuse and ill-treatment of minors. It is common knowledge that one is often the cause of serious relationship and family problems, alcohol or drug dependence, social disengagement, loneliness and depression (12). The diagnosis of a personality disorder requires a psychiatric specialist who deals with functional patterns and long-term symptoms. Diagnosis is usually made in people aged 18 and over. People under the age of 18 are generally not diagnosed with personality disorders because their personality is still evolving. Some people with personality disorders may not detect a problem. Also, people may have more than one personality disorder. It is estimated that 9% of adults in the United States have at least one personality disorder.2 General diagnostic criteria for a personality disorder (derived from DSM-IV and ICD-10) 39. Chanen A, Sharp C, Hoffman P. Global alliance for prevention and early intervention for borderline personality disorder.

Prevention and early intervention in cases of borderline personality disorders: a new priority for public health. World Psychiatry (2017) 4:215-6. Psychologists are not only interested in understanding normal human personality, but also in detecting potential personality disorders that could lead to difficulties or difficulties in important areas of life. By being able to identify the problems people have at home, at school, at work or in their relationships, psychologists are better able to help people develop their abilities to cope with and manage the symptoms of personality disorders.