Paranoiac delusion has the particularity of being contagious... In this context, the psychological mechanisms at work are notably the collusion between the melancholic core of the paranoiac and the traces of unresolved pathological mourning in the "paranoee". One of the most essential mysteries to be solved in the field of the human psyche lies in the delusional contagion of paranoia. In fact, the only delusion capable of operating by contagion is paranoiac delusion...

Psychosis manifests a singular apprehension of time, which is characterized by a difficulty in inscribing a temporality specific to the story, notably in phenomena of absence of dating or excessive dating. This excessive dating of certain psychotic stories is studied here through the concept of "hyperdating" proposed by the authors who question its psychic function. The methodology is qualitative and is based on the presentation of two clinical cases, one of schizophrenia, th