The scientific standard of clinical term, concept and type of disorders are very important in the development teaching of psychogenia. The same mental reactions can provoke different clinical pictures at different people. On the other hand, a different mental injury can result in similar on clinical pictures of syndromes.

In native psychiatry the distinction of psychogenia be on clinical level. All disorders ascribed to psychogenia illness if action of mental injury is provoke its. These disorders divided by nervosas and reactive conditions. The most psychogenia study in forensic-psychiatric clinic, they often develop in situation «delict – arrest – judicial inquiry – forensic-psychiatry evaluation – justice – expectation of punishment». A follow psychogenias disorders are distinguished. Acute reactive psychosis: psychomotor excitement and brakement, psychosis of fear, speeching muddle and reaction «short closement». Under acute psychosis: depression, paranoid, hallucinosis, delirious similar fantasy, Ganzer's syndrome and false dementia, regress of psychic.

According the ICD-10, psychogenia ascribe to different types of disorders: psychotic and neurotic levels. Forensic-psychiatrist experts are interest in disorders of psychotic level, as decision of questions of responsibility accused make difficult. We distinguished Ganzer's syndrome, disorders of plural personality, muddle, twilight consciousness.