No abstract available.
Delusions*

No abstract available.
Delusions

No abstract available.
Delusions* ; Schizophrenia*

No abstract available.
Delusions* ; Hallucinations* ; Humans

OBJECTIVES: Delusions are prevalent even among members of the general population, and persecutory delusions (PDs) and grandiose delusions (GDs) are most frequently found. In this study, we investigated the differences in the dimensions of delusional ideation, reported psychosis proneness, and subjective psychotic symptoms in nonclinical individuals stratified according to the existence of PDs and GDs. METHODS: A total of 311 nonclinical individuals completed the Peters et al Delusions Inventory 40 (PDI-40), Perceptual Aberration Scale (PAS), Magical Ideation Scale (MIS), Schizotypal Personality Scale (STA), and Symptom Check List-90-R (SCL-90-R). Individuals were grouped according to four types based on the existence of PDs and GDs in PDI-40 items. RESULTS: An analysis of variance revealed that the four groups differed significantly in total delusion score, distress, preoccupation, and conviction level of delusional ideation, PAS, MAS, STA, in total SCL-90-R scores, and all SCL-90-R sub symptoms. In post-hoc analysis, the group with both PDs and GDs showed the highest scores in all measures, compared with the other three groups. CONCLUSION: We found that individuals with both PDs and GDs have a tendency to possess another delusional ideation and reported more distress, preoccupation, and conviction level of delusional ideation, psychosis proneness, and subjective symptoms. Existence of both PDs and GDs significantly elevated psychosis proneness in comparison to having only either one of them.
Delusions ; Magic ; Psychotic Disorders

No abstract available.
Delusions* ; Hallucinations* ; Humans

OBJECTIVES: The purpose of this study was to evaluate the characteristics of relationship between the frequency of various persecutors in schizophrenic delusion and religious orientation with other religious variables. METHODS: The subjects were 105 schizophrenic patients. Diagnostic criteria used in this study was DSM-III-R. Religious orientation was assessed with the Intrinsic and Extrinsic Religious Orientation Scale. Demographic data, religious data, and contents of persecutory delusion were also analyzed. RESULTS: 1) The group obsessed with religious delusion regarded God, ghosts, and supernatural beings as persecutors. Predominantly, they used to have religious affiliation with protestantism before schizophrenic onset while being "intrinsic" in religious attitude. They also participated in religious activities more than 2 times every week. 2) The group who regarded religious leaders and shamans as persecutors predominantly had a religious affiliation after schizophrenic onset with "proreligious" and "intrinsic" religious attitude while some of them never participated in religious activity. 3) The group who regarded predominantly family and relatives as persecutors have a religious affiliation with buddhism and others(shamanism and etc) after schizophrenic onset with "extrinsic" religious attitude. CONCLUSION: These results suggest that religious orientation and other religious factors seem to affect persecutory delusion formation in schizophrenic patients.
Buddhism ; Delusions* ; Humans ; Protestantism ; Schizophrenia

OBJECTIVE: The aim of this study was to investigate the rates childhood traumatic experiences (CTEs) of schizophrenia patients and to examine relationship between childhood traumatic experiences, dissociation and psychotic symptoms. METHODS: One hundred schizophrenia patients who had 5 or 5 points below in Clinical Global Impression-Severity (CGI-S) and who were not in active psychotic episode and 50 healthy siblings who grew up in the same environment with the patients were included to the study. Structured Clinical Interview for DSM IV, Scale for the Assessment of Positive Symptoms, Scale for the Assessment of Negative Symptoms, Dissociative Experiences Scale (DES), CGI-S, Global Assessment of Functioning Scale and Childhood Trauma Questionnaire (CTQ-28) applied to the patients. RESULTS: Childhood abuse subscales and DES scores were statistically higher in the patient group (p<0.001). We determined moderately significant positive correlation between CTQ-28 and DES. We determined moderately significant positive correlation between CTQ total scores and persecutory delusions, delusions of reference, ability to feel intimacy and closeness; relationship with friends and peers. Also, there was a significant positive correlation between persecutory delusions and CTQ-total, DES-total and all subscales of CTQ-28. CONCLUSION: Clinicians should inquire about CTEs to develop comprehensive formulations and treatment plans among schizophrenia.
Delusions ; Friends ; Humans ; Schizophrenia ; Siblings

The underlying nature of delusions remains unclear despite their importance in psychopathology. Here we present a review of the neurocognitive model of delusions from a cognitive neuroscience viewpoint. There have been numerous reports on cognitive impairments in delusional patients, such as in their reasoning, attention, metacognition, and attribution biases. These findings have been incorporated into several cognitive models that aim to explain the formation, maintenance, and content of delusion. Although delusions are commonly conceptualized as beliefs, not all models make reference to models of normal belief formation. This review focused on two-factor theory models that make a distinction between factors that explain the content of delusions and those that explain their presence. This cognitive theory that includes the 'pragmatic pathology' of delusions can address both the phenomenology and treatment of delusion-related distress.
Bias (Epidemiology) ; Delusions* ; Humans ; Neurosciences ; Psychopathology

OBJECTIVE: The purpose of this study was to investigate actual visual hallucinations as perceived by 40 schizophrenic patients and, subsequently, to explore their psychopathology in order to assist clinicians in more effectively evaluating and treating the visual hallucination. METHODS: With the authors guidance, the content and meaning of pictures drawn, according to their perceptions, by 40 schizophrenic patients were evaluated in conjuction with an examination of the patient's emotional reaction and associated behavior. The results from the visual hallucination group were analyzed and then compared with non-visual hallucinatory control group using the Brief Psychiatric Rating Scale(BPRS) On this basis, the authors investigated the correlations between patients' strength of confidence non-visual hallucination, frequency of visual hallucination, mean duration of an episode and the score of BPRS, and the correlation between meaning of visual hallucination and the tripe of patient's delusion. finally the authors attempted to derive correlation among the items of BPRS. RESULTS: 1) The content of visual hallucination was mostly non-human and mythologically exhibiting anthropomorphic qualities while its meaning was frequently persecutory. In addition, the visual hallucinations experienced by the subjects were most often close to or within the patients' ordinary visual range with mean duration of halluinatory episodes ranging from 1 to 5 minutes. The most frequent reaction of patients is a negative emotional response and the most frequent overt behavior was either verbal or restricted physical activity. 2) There was a positive correlation between the meaning of the visual hallucination and the type of patients' delusion. 3) The group having visual hallucinations had more frequent anxiety, hallucinatory behavior and unusual thought content compared to the non-visual hallucination group. 4) There were positive correlations between patients' strength of confidence in visual hallucination and halluculatory behavior and among anxiety, tension, motor retardation and mean duration of episodes of visual hallucination. 5) There were positive correlations between hallucinatory behavior and anxiety, hallucinatory behavior and mannerism and posturing, hallucinatory behavior and excitement, and hallucinatory behavior and motor retardation. Also, there were positive correlations between motor retardation and tension, blunted affect and tension, and between emotional withdrawal and tension among each item of BPRS in the visual hallucination group. CONCLUSION: In this study of visual hallucinations in schizophrenics, the authors concluded that it is helpful for clinicians to evaluate how schizophrenic patients experience their visual hallucination.
Anxiety ; Delusions ; Hallucinations* ; Humans ; Motor Activity ; Psychopathology ; Schizophrenia