Active clinical trials for "Schizophrenia"

This is a novel study that seeks to explore the clinical and functional imaging effects of transcranial direct current stimulation (tDCS) on illness awareness or anosognosia in schizophrenia, arguably the most treatment-resistant manifestation of the disorder.

The purpose of this study is to investigate the mechanism of action of transcranial electrical brain stimulation over the dorsolateral prefrontal cortex for cognitive impairment in schizophrenia. To do so the effect of a novel stimulation protocol will be investigated in the fMRI scanner.

This 10 week intervention, Specific Cognitive Remediation with Surround (or SCORES), is designed to target processing speed, a cognitive domain related directly to social functioning, which in turn, represents a vulnerability factor for psychosis. This remotely-delivered intervention combining targeted cognitive training exercises and group support was developed to directly impact processing speed, and at the same time, boost motivation and engagement in adolescents at risk for schizophrenia and other psychotic disorders.

Schizophrenia is a serious, disabling and unfortunately common disease. Its prevalence is in the order of 0.6 to 1% in the general population, a figure that remains relatively stable in the various cultures. The overall prognosis, particularly in terms of function, remains largely negative. The investigators know that a global management can considerably slow down this unfavourable evolution: according to the recommendations, the patient suffering from schizophrenia requires an effective and well-tolerated pharmacotherapy, associated with an adapted psychotherapy as well as cognitive remediation workshops, training in social skills, and psycho-education. There are indeed a large number of studies that have shown these elements in patients with schizophrenic disorders that have been present for several years. The investigators now know that early treatment is a key prognostic element. Indeed, the earlier care is provided during the first psychotic episode, the better the subsequent prognosis: the probability of further decompensation is reduced, as is the risk of developing deficits, such as cognitive difficulties. However, there is a lack of access to all the recommended aspects of management in the initial phase of the disorder, particularly concerning early psycho-educational programmes for patients, which have been relatively little studied in clinical research. In this context, it seems relevant to study the impact of a new programme of this type on a fundamental parameter, conditioning the subsequent access to care: the therapeutic alliance. "PPIC" is a short psycho-educational programme in 4 sessions, specifically designed to accompany young patients, and focused on the issues of this crucial period of the care process.

Bipolar disorder (BD), schizophrenia and depression can feature cognitive impairment, especially in social cognition (SC). According to previous studies, some genes from the oxytocin and dopamine pathways may be involved SC performance. Our endophenotype approach aimed to demonstrate that SC deficits are more severe in schizophrenia and BD or depression with psychotic symptoms (PBP) and are associated with certain Single Nucleotide Polymorphisms (SNPs) variants. 600 patients with schizophrenia, BD ou depression with and without psychotic symptoms will be recrited. Social Cognition was assessed using 4 paradigms: Reading the Mind in the Eyes Test (RMET), Interpersonal Reactivity Index (IRI), Empathy Quotient (QE), and a modified Delay Discounting task. After DNA extraction from blood or saliva sample, we used PCR amplification and real-time detection to genotype SNPs from Oxytocin pathways. he level of ocytocine will be also mesured.

The investigators propose to examine the effects of CSC services delivered via TH (CSC-TH) versus the standard clinic-based CSC model (CSC-SD) on engagement and outcomes in a 12-month, randomized trial.

Patients with schizophrenia spectrum disorder (SSD) will be exposed to active repetitive transcranial magnetic stimulation (rTMS) from F8 coil or active rTMS from H coil for smoking cessation. Smoking and brain functional connectivity changes will be assessed at baseline, different stages of rTMS and/or follow-ups.

To test the hypothesis that functionally navigated repetitive TMS stimulations to the prefrontal cortex (PFC) modulate aberrant cortical electrical activities at PFC circuitry. The TMS location of the PFC site will be individually localized by the symptom-related functional connectivity between PFC and symptom related areas (such as the auditory and language processing cortex). The investigators predict that such modulation will correct abnormal activities in patients with schizophrenia, reduce symptoms, especially auditory hallucination, and improve working memory/sustained attention performance.

The purpose of this study is to better understand the neural correlates of higher-order cognition, both in the healthy brain and in schizophrenia, and to determine how these mechanisms are modulated by transcranial direct current stimulation (tDCS) at frontal and occipital scalp sites. Testing the effects of tDCS at these scalp sites on cognitive task performance will help us understand the roles of the brain regions corresponding to these sites during higher-order cognitive processing (language comprehension, cognitive control, and related attention and memory processes). Behavioral and electrophysiological (EEG) measures will be used to assess cognitive performance. The investigator's overarching hypothesis is that stimulating prefrontal circuits with tDCS can improve cognitive control performance, and ultimately performance on a range of cognitive tasks, as compared to stimulating a different cortical region (occipital cortex) or using sham stimulation. This study is solely intended as basic research in order to understand brain function in healthy individuals and individuals with schizophrenia. This study is not intended to diagnose, cure or treat schizophrenia or any other disease.

The purpose of this study is to examine whether cerebellar stimulation can be used to improve cognitive deficits and mood in patients with schizophrenia, autism, bipolar disorder, Parkinson's disease, and major depression.