The problem of the relationship between obsession and delusion is dealt with from descriptive, anthropoanalytical and purely phenomenological points of view. The main differential aspects are focused. The phenomenological concept of the progressive fading of the ‘feeling of Ego activity’ is proposed as the functional bias at the basis of the continuum linking obsessive symbolic awareness to delusional perception.

The concept of ‘dysphoria’, as defined by the Vienna Group from the psychopathological point of view, is analyzed on the anthropological level. In an anthropological perspective, personality is conceived as a factor modulating affective disorders, and the manifold clinical expressions of affective disorders are viewed as functions of the relationship between the entity of the ‘endothymic’ fluctuations and the amalgam of the person who is in charge to confront and cope with the thymic experience. The hypothesis that dysphoria may be interpreted as a sthenic, oppositional and therefore irritated and hostile personological reaction to the occurrence of endogenous ‘restrictive’ or ‘expansive’ mood swings is discussed.

Detachment from external reality, distancing from others, closure into a sort of virtual hermitage, and prevalence of inner fantasies, are the descriptive aspects of autism. However, from an anthropological-phenomenological point of view, in schizophrenia, the autistic mode of life can arise from a person's being confronted with a pathological crisis in the obviousness of the intersubjective world, essentially a crisis in the intersubjective foundation of human presence. The “condition of possibility” of the autistic way of being is the deficiency of the operation that phenomenology call empathetic-intuitive constitution of the Other, an Other which is the naturalness of evidence of being a subject like me. The theme of the Other, of intersubjectivity, has become so central in the psychopathological analysis of schizophrenic disorders because the modifications of interhuman encounter cannot be seen as the secondary consequences of symptoms but constitute the fundamental disorder of schizophrenic alienation. Revision of the concept of autism from the original definition, centered on the prevalence of inner fantasies, leads to the profound change with the vision of autism as “loss” and “void.” I call attention to possibility of phenomenological research to understand autistic world starting from this “void.”

The ‘nonunderstandability’ that traditional psychopathology attributes to ‘true’ delusion does not have a clear demarcation line, but, rather, it is a continuum of various delusional experiences. The attention paid to emotional situations and, specifically, to dysphoria, often contributes to making the delusional phenomenon, and, above all, its persistence, more understandable. A positive correlation between productive psychotic symptoms and the dysphoric mood often prevails in delusions with unfavorable prognoses.

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