Delusion has always been a central topic for psychiatric research with regard to its etiology, pathogenesis, diagnosis, treatment, and forensic relevance. Among these, primary delusion seems to be the interest of many psychiatrists. Content of delusion has always been the area of interest of cultural psychiatry. We have tried to discuss the various aspects of primary delusion and also tried to ...

We report the case of a 35 year old women who developed a complex paranoid delusion during the course of clomiphene treatment für ovulation. The psychopathology was remarkable, because after a short hypomanic period the patient was without severe cognitive disturbance but struggled with a complex monothematic delusion. The delusion vanished in the course of a combination treatment with olanzapi...

The present article proposes a logical account of delusions, which are regarded as conclusions resulting from fallacious arguments. This leads to distinguish between primary, secondary, ..., n-ary types of delusional arguments. Examples of delusional arguments leading to delusion of reference, delusion of influence, thought-broadcasting delusion and delusion of grandeur are described and then a...

Literature comparing 'jumping to conclusions' (JTC) between patients and healthy controls has demonstrated the importance of the reasoning bias in the development of delusions. When groups that vary along the entire delusional continuum are included, the relationship between JTC and delusionality is less clear. This study compared JTC and delusional dimensions between 28 patients with delusions...

Background: Delusions have been regarded as a core sign of psychosis and can be found in various psychiatric illnesses including Schizophrenia and Mania and considerable overlap between the types of delusion have been observed in both Schizophrenia and Mania Aims: This study therefore aims at examining and comparing the nature and types of delusion in schizophrenia and mania Methods: a total of...

The present study investigated the reasoning of high and low-delusion-prone individuals on probability estimation tasks using emotionally neutral and delusional narratives. Undergraduate students (N = 33) who were classified as high-delusion-prone or low-delusion-prone based on their scores on a widely used measure of delusion-proneness in reasoning research (the Peters et al. Delusions Invento...

Introduction: Delusion of pregnancy is a bizarre delusion in which one feels s/he is carrying a fetus. The etiology is unknown, but aloneness, masturbation, and stress may precipitate this disorder. Case Presentation: We introduce a young, single man who has delusions of pregnancy. This type of delusion is not a well-known disorder; based on investigated ...

Background and Objectives: Bizarre hypochondriacal delusion is an important content of delusion of pregnancy during post-partum period. Methods: Here we report two cases with postpartum delusion of pregnancy; one with pre-existing schizophrenia and another one with family history of pseudocyesis and schizoaffective disorder but with no pre-existing psychiatric illness. Results: Nosological, phe...

AIM The study aimed at providing the psychometric properties of Polish version of Peters et al. Delusion Inventory (PPDI) (1999) and assessing the prevalence of delusion-like experiences among healthy subjects in the Polish population. METHODS Polish version of PDI was developed on the basis of back translation procedure. The scale was completed by 421 adult subjects. On the basis of the scor...