fMRI Analysis of Dissociative Convulsions: A Case-Controlled Study

Background and Objectives

Dissociative convulsions represent complex biopsychosocial etiopathogenesis and have semiological similarities with epilepsy, which leads to delays in definitive diagnosis as well as treatment. We explored the neurobiological underpinnings of dissociative convulsions using a functional magnetic resonance imaging (fMRI) design targeting cognitive, affective, and resting state characteristics in our subjects.

Materials and Methods

Seventeen female patients with dissociative convulsions without any co-morbid psychiatric or neurological illness and 17 matched healthy controls underwent standardized task-based (affective and cognitive) and resting state fMRI. Blood oxygen level-dependent (BOLD) activation results were compared across the groups, and correlation with the severity of dissociation was measured.

Results

Patients with dissociative convulsions had lower activation in the left cingulate gyrus, left paracentral lobule, right middle and inferior frontal gyrus, right caudate nucleus, and right thalamus. There was increased resting state functional connectivity (FC) between the left posterior superior temporal gyrus and left superior parietal lobule; left amygdala and Default Mode Network (DMN) of right lateral parietal cortex; right supramarginal gyrus and left cuneus in the patient group. Patients also had decreased FC between the anterior cingulate cortex (ACC) and left thalamus; ACC and right central opercular cortex; DMN of PCC, posterior cingulate gyrus, and right middle temporal lobe.

Conclusions

Patients with dissociative convulsions have significant deficits in the areas associated with the processing of emotional, cognitive, memory, and sensory-motor functions. There is a significant correlation between dissociative severity and the functioning of areas involving the processing of emotions, cognition, and memory.

Depression Among Adolescents in a Rural Area of Haryana, India: A Community-Based Study Using Patient Health Questionnaire-9

Introduction: The estimates of prevalence of depression among adolescents in the Indian community are limited; most studies are institution-based. Early identification and management of depression can provide significant health dividends to the affected adolescents, and better health consequences in their adulthood.

Objectives: To determine the prevalence of depression among 10- to 19-year-old residents in a rural area of Haryana, India, and to assess factors associated with adolescent depression.

Methods: A sample of 630 adolescents (between 10 to 19 years of age) residing in the selected area of Ballabgarh (Haryana) were selected using simple random sampling technique. Home visits were made, in which participants were administered the Patient Health Questionnaire (PHQ)-9 to screen for depression. The prevalence and 95%CI were estimated. In addition, a semi-structured interview schedule was administered to identify sociodemographic variables and other factors associated with adolescent depression. Unadjusted and adjusted OR were reported with p-value, using multivariable logistic regression analysis.

Results: The age-adjusted prevalence of depression among adolescents was 20.6% (95% CI: 16.9-24.2). The prevalence in late and early adolescence was 11.7% and 8.9%, respectively. It was higher in girls (22.3%) as compared with boys (19.2%). Mild depression was the most common type identified. On multivariable logistic regression, depression was associated with birth order of four or more (Adjusted OR (AOR)=3.0 (95%CI: 1.4-6.3), p<0.01), presence of long-standing illness in the past three months (AOR=3.0 (95%CI: 1.4-6.1), p<0.01), impaired self-perceived body image (AOR=2.9 (95%CI: 1.8-4.6), p<0.01), and perceived stressful event(s) in the past six months (AOR=4.9 (95%CI: 2.8-8.6), p<0.01).

Conclusion: One in five adolescents was screened positive for depression, necessitating focus on screening and early identification of depressive symptoms, especially at the primary care level.

Relationship of supernatural beliefs and first treatment contact in patients with obsessive compulsive disorder: an exploratory study from India

BACKGROUND

The etiology of mental illness has been attributed to many different causes by people of various cultural backgrounds, including supernatural beliefs. This in turn affects the help-seeking behavior. Aim of this study was to explore the supernatural belief and pathways of care in patients with obsessive compulsive disorder (OCD) attending a tertiary care hospital located in north India.

METHODOLOGY

In all, 89 consecutive patients diagnosed with OCD (according to the International Classification of Diseases-10th Revision (ICD-10)) and ≥ 15 years of age were evaluated for their supernatural belief and help seeking.

RESULTS

More than half of the patients (54%) believed in supernatural causes and 57.3% attributed their illness to supernatural causes. In addition to supernatural causes, many patients also attributed their illness to stress (household/work-related stress) or chemical imbalance in the body and or mind. About two-thirds of the patients (n = 58; 65.2%) first contacted a psychiatrist for their symptoms of OCD. Those who first contacted faith healers believed in one of the supernatural causations.

CONCLUSION

Patients with OCD hold multiple beliefs regarding the etiology and treatment of mental illness which can affect their pathways to care.

Urban living and psychosis--an overview

Since more than half a century, the association of urbanicity with psychosis has been explored. The research interest initially stemmed from the finding of a higher proportion of cases of psychotic disorder coming for treatment from the inner parts of cities. Subsequently, interest in the relationship of urbanicity and schizophrenia expanded and various facets of this association were explored. This narrative review provides an overview of the relationship between urbanicity and psychosis, and evaluates the link from the standpoint of causality. The review further delves into the possible risk factors and mechanisms explaining this association; both biological ones like genetic vulnerability and infections, as well as environmental ones like pollution. Since the literature has primarily emerged from the developed western countries, the review draws attention to the caveats while extrapolating the results to a developing country scenario.