Abstract
[The Formal Model of the Ontogenesis According to C.G. Jung]
Models are used in developmental psychology 10 conceptualize the content, the form and the dynamics of the human course of life The formal model which is used by Jung is explained on the background of a synthetic scheme of the stages of the life span. The basis of the model is constituted by the principles of polarization and enantiodromia which only help Jung to understand the essential features and the meaning of the mid life crisis. The model itself is a stage-, a periodicity- and an ‘upbuilding-demolition’ (expansion-restriction) model It has been graphically synthesized. Critical reflections on the three dimensions of the model reveal it to have only partial usefulness for the understanding of the development of the whole human personality between birth and death Scientific research is suggested, especially with relation to periodical and rhythmical phenomena in the developmental process.