This papers looks upon the following question: is there any specialised approach of human beings that, not being a psychology nor psychiatry, could still both present methodological ways for an observation and description project of the psychic disturbances and understand their singular phenomenal occurrence in the heart of experience generality?
Such a question was asked by Karl Jaspers, in 1910, in the works preceding his publishing of General Psychopathology.
The problem to which we would thus be confronted is that of the phenomenological condition of psychopathology, i.e. the will not to make it result or depend on psychology. And if psychiatry has been, for quite a long time, a ground of observation and rational research on classifications, it is high time we asserted its empirical practice has long been considered impotent as for conducting the constitution of a psychopathology.
The author is thus driven to claim how convenient it would be to think the project of a fundamental psychopathology as an intersciences project, in which the comparative epistemology of models and their theoretical-critical functioning would play the determinant role of a consciousness of their operative limit and of their aptitude to transform each other.