[Formulating the question of "primary plot" in the paranoidal delusional syndrome and "delusional behavior"].

The paper is concerned with studies of a delusional "primary plot". During the process of a systematization of the "primary plot" and a formation of the paranoial syndrome, the total information is formed according to the "predetermined" programme, kept in the "code" of the "primary plot" and is read of it in the logical prerequisite and motivation of all delusional constructions. The hypotheses of "delusional behaviour", as a behavioural actualization of delusions and implementing tendencies of a "struggle for the idea" are discussed. It is formed in connection with the actuality of delusional experiences, is subjected to regularities of psychopathological symptomatology and should be studied as joint symptoms. Certain forms of "delusional behaviour" in delusional paranoial delusions of jealousy, hypochondria, inventive- and litigious-querulousness are described on the basis of a study of 401 patients.