Religion and delusion

The role of culture on the phenomenology of hallucinations and delusions, explanatory models, and help-seeking attitudes: A narrative review

AIM

Culture has been posited to be involved in the formation and maintenance of delusions and hallucinations. The extent of these differences and how they affect explanatory models of psychosis and help-seeking attitudes remains to be understood. This review aims to present a cultural formulation to account for psychosis onset, symptom maintenance, and help-seeking attitudes.

METHODS

A narrative review was conducted to summarize the existing evidence base regarding cross-cultural differences in hallucinatory and delusional prevalence, explanatory models, and help-seeking attitudes in First Episode Psychosis (FEP) and Non-FEP Schizophrenia samples.

RESULTS

Sixteen studies were eligible for inclusion. In terms of positive symptom specificity, cross-cultural differences were found. Specifically, auditory and visual hallucinations occurred most frequently in African patients, persecutory and grandiose delusions occurred at higher rates in African, Pakistani, and Latino patients, while delusions of reference were most prevalent in White-British groups. Three explanatory models were identified. Westerners tended to endorse a bio-psychosocial explanation, which was associated with increased help-seeking, engagement, and positive medication attitudes. Asian, Latino, Polish, and Māori patients endorsed religious-spiritual explanatory models, while African patients opted for a bewitchment model. The religious-spiritual and bewitchment models were associated with a longer duration of untreated psychosis (DUP) and poorer engagement with mental health services.

CONCLUSIONS

These findings highlight the important influence of culture in the formation and maintenance of positive symptoms of psychosis, engagement, and help-seeking attitudes across different ethnic groups. The incorporation of cultural beliefs in formulation development could facilitate enriched CBTp practices and improved engagement amongst different cultural groups with Early Intervention Services.

Religious hallucinations in Lebanese patients with schizophrenia and their association with religious coping

PURPOSE

to evaluate the relationship between religious hallucinations and religious coping among Lebanese patients with schizophrenia.

METHODS

We have studied the prevalence of religious hallucinations (RH) among 148 hospitalized Lebanese patients suffering from schizophrenia or schizoaffective disorder in November 2021 exhibiting religious delusions (RD), and their relationship with religious coping using the brief Religious Coping Scale (RCOPE). The PANSS scale was used to evaluate psychotic symptoms.

RESULTS

After adjustment over all variables, more psychotic symptoms (higher total PANSS scores) (aOR = 1.02) and more religious negative coping (aOR = 1.11) were significantly associated with higher odds of having religious hallucinations, whereas watching religious programs (aOR = 0.34) was significantly associated with lower odds of having religious hallucinations.

CONCLUSION

This paper highlights the important role of religiosity that has to play in the formation of religious hallucinations in schizophrenia. Significant association was found between negative religious coping and the emergence of religious hallucinations.

The effects of base rate neglect on sequential belief updating and real-world beliefs

Base-rate neglect is a pervasive bias in judgment that is conceptualized as underweighting of prior information and can have serious consequences in real-world scenarios. This bias is thought to reflect variability in inferential processes but empirical support for a cohesive theory of base-rate neglect with sufficient explanatory power to account for longer-term and real-world beliefs is lacking. A Bayesian formalization of base-rate neglect in the context of sequential belief updating predicts that belief trajectories should exhibit dynamic patterns of dependence on the order in which evidence is presented and its consistency with prior beliefs. To test this, we developed a novel 'urn-and-beads' task that systematically manipulated the order of colored bead sequences and elicited beliefs via an incentive-compatible procedure. Our results in two independent online studies confirmed the predictions of the sequential base-rate neglect model: people exhibited beliefs that are more influenced by recent evidence and by evidence inconsistent with prior beliefs. We further found support for a noisy-sampling inference model whereby base-rate neglect results from rational discounting of noisy internal representations of prior beliefs. Finally, we found that model-derived indices of base-rate neglect-including noisier prior representation-correlated with propensity for unusual beliefs outside the laboratory. Our work supports the relevance of Bayesian accounts of sequential base-rate neglect to real-world beliefs and hints at strategies to minimize deleterious consequences of this pervasive bias.

Can mental healthcare for Muslim patients be person-centred without consideration of religious identity? A concurrent analysis

BACKGROUND

Muslims constitute the largest, fastest growing religious minority in the UK. Globally, nurses are legally, morally and ethically obliged to provide non-discriminatory, person-centred, culturally sensitive care. This obligation includes supporting people with their religious needs where appropriate, but there is evidence this is not always happening, particularly for Muslims in mental health care.

AIMS

This paper reviewed primary research to address the question: Can mental healthcare for Muslims be person-centred without consideration of religious identity?

METHODS

Narrative synthesis and concurrent analysis. Searches were conducted post 2000 in MEDLINE, CINAHL, SAGE, PsychINFO and ASA with terms: 'Muslim', 'Islam* ', 'mental health', 'nurs* ', 'person-cent* ', 'religio* '. Narrative data were analysed for commonalities and themes.

FINDINGS

Seven studies of sufficient quality were analysed. Unconscious religious bias was the overarching theme linking the findings that healthcare staff felt ill-prepared and lacked necessary knowledge and experience to work with diverse patient groups. Unconscious racial bias contributed to limited cultural/ religious competence in treatment and care.

CONCLUSION

Religious identity is core for Muslim patients, so this group may not be receiving the person-centred care they deserve. Nurses need cultural and religious competence to deliver person-centred, holistic care to diverse patient populations, yet the importance of religious practice can be overlooked by staff, with harmful consequences for patient's mental and spiritual welfare. This paper introduces a welcome pack that could help staff support the religious observance of those Muslim patients/service-users wishing to practice their faith during their stay in health services.

Religious Fundamentalism, Delusions, and Conspiracy Beliefs Related to the COVID-19 Pandemic

The widespread COVID-19 conspiracy theories are a problem in dealing with the pandemic, as their proponents tend not to adhere to public health regulations. The aim of this study was to analyse the relationships between religious fundamentalism, delusions, compliance with public health regulations, and religion-related conspiracy beliefs about the COVID-19 pandemic. The participants were 570 internet users aged 18–60. They responded to questions regarding sociodemographic variables, compliance with public health regulations, conspiracy beliefs concerning COVID-19, as well as the Revised Religious Fundamentalism Scale, and the Delusions Scale. The results indicated that people exhibiting more conspiracy beliefs were less likely to comply with public health regulations concerning the COVID-19 pandemic and showed more religious fundamentalism. Additionally, there was an indirect effect of religious fundamentalism on conspiracy beliefs through delusions. The results suggest that when formulating epidemiological messages, it is worth paying attention to the importance of rational thinking.

Postdiction in Visual Awareness and Intrinsic Religiosity

The mistiming and fusion of predictive thought and actual perception result in postdiction in awareness, a critical factor in the emergence of nonrational beliefs. Individuals with delusive thinking tend to experience a temporal reversal of prediction ("I guess the rain will fall.") and real perception ("I feel the rain falling."), incorrectly showing conviction that their predictions are correct. It is unknown how postdiction is related to religious cognition with a particular reference to intrinsic religiosity when religious beliefs and values are master motives and fundamental frameworks of life. Using a temporal decision-making task, we investigated a group of religiously committed individuals, atheists, and people from the general community. Results revealed higher postdiction at short thought-precept time intervals in the intrinsic religious group relative to the atheists. Intrinsic religiosity, but not delusive thinking, was predicted by postdiction in both religious individuals and the general population. These results indicate that people who display pronounced thought-percept reversal and fusion feel that they are close to a higher power and the sacred.

Postdiction in Visual Awareness in Schizophrenia

Background: The mistiming of predictive thought and real perception leads to postdiction in awareness. Individuals with high delusive thinking confuse prediction and perception, which results in impaired reality testing. The present observational study investigated how antipsychotic medications and cognitive-behavioral therapy (CBT) modulate postdiction in schizophrenia. We hypothesized that treatment reduces postdiction, especially when antipsychotics and CBT are combined. Methods: We enrolled patients with schizophrenia treated in a natural clinical setting and not in a randomized controlled trial. We followed up two schizophrenia groups matched for age, sex, education, and illness duration: patients on antipsychotics (n = 25) or antipsychotics plus CBT (n = 25). The treating clinician assigned the patients to the two groups. Participants completed a postdiction and a temporal discrimination task at weeks 0 and 12. Results: At week 0, postdiction was enhanced in patients relative to controls at a short prediction–perception time interval, which correlated with PANSS positive symptoms and delusional conviction. At week 12, postdiction was reduced in schizophrenia, especially when they received antipsychotics plus CBT. Patients with schizophrenia were also impaired on the temporal discrimination task, which did not change during the treatment. During the 12-week observational period, all PANSS scores were significantly reduced in both clinical groups, but the positive symptoms and emotional distress exhibited a more pronounced response in the antipsychotics plus CBT group. Conclusion: Perceptual postdiction is a putative neurocognitive marker of delusive thinking. Combined treatment with antipsychotics and CBT significantly ameliorates abnormally elevated postdiction in schizophrenia.

Magic and forensic psychiatry: A case study and review of the literature

Forensic psychiatrists routinely appear in courts for crimes that have been perpetrated by mentally ill patients or when the defendant is suffering from a major psychiatric disorder. However, committing crimes under the presumed effects of magic and witchcraft is uncommon. A variety of delusional thoughts and personality disorders have been imputed in aggressive behaviour that might culminate in homicide. The patterns of a premeditated homicide, as well as the aberrations of the interpersonal relations, as a rule require long-term and close contact. As such, the family is a setting where such occurrences have been reported. We describe a case of first-degree murder by a woman who killed her mother-in-law after accusing her repeatedly of sorcery and witchcraft. Such complicated cases cannot be resolved without the help of forensic experts, whose role remains multifaceted and of particular importance.