View clinical trials related to Schizophrenia.
Filter by:The investigators study aims are: 1. To investigate folate, vitamin B12, and homocysteine levels in patients with schizophrenia. 2. To evaluate the relationships among folate, vitamin B12, and homocysteine levels, genetic variants of one-carbon cycle pathway, psychopathology, including positive symptoms, negative symptoms, and cognition, and metabolic abnormalities in patients with schizophrenia. 3. For patients with low folate levels, the investigators would like to conduct a 24-week double-blinded, placebo-controlled of folic acid (5 mg/d) and vitamin B12 (500 ug/d) supplementation study to know whether combination of folic acid and vitamin B12 can improve patients' psychopathology or metabolic profiles, and the effects of genetic variants in one-carbon cycle pathway on treatment response.
Theory of mind (TOM), a main component of social cognition processes, refers to the capacity to infer one's own and other person's mental states. Deficits in social cognition are found in patients with schizophrenia and bipolar disorder. The purpose of this study is to compare the neurofunctional profiles of schizophrenic patients, bipolar patients and healthy participants during the performance of a TOM task. Results may help to understand the neural bases of the impairments in social cognition in schizophrenia and bipolar disorder, which may in turn help to propose potential new psychosocial therapeutic approaches in these disorders.
Researchers propose in this project to evaluate predictive factors of non response. It is defined by the lack of symptomatic remission at month 3, for patients presenting a first episode of psychosis. It will be performed on objective markers taken from imagery techniques. The link between evolution of these markers and clinical measures will be studied.
Moma call center will provide unique service -Remote monitoring and support for mental health patients .The aim of this reserch is reducing hospitalization and improve adherence, by reaching out and there for monitoring very closely .
The purpose of this project is to examine potential mechanisms that may underlie early visual and auditory perception as well as visual and auditory affect perception deficits in schizophrenia and the possible connection between these processes. Given that affect perception largely involves visual and/or auditory information processing and likely relies on intact basic visual and/or auditory perceptual mechanisms, the investigators will examine affect perception deficits within the framework of the more basic visual and auditory processes. Specifically, the investigators will examine magnetophysiological correlates of vocal and visual affect discrimination, non-affective face discrimination and voice discrimination, and simple visual and auditory stimulus discrimination, using Magnetoencephalography (MEG), to identify neural mechanisms underlying perceptual deficits, as well as their contribution to affect perception deficits in schizophrenia.
Transcranial direct current stimulation (tDCS) is a non-invasive form of brain stimulation which uses a very weak constant current to temporarily excite the brain area of interest via small electrodes placed on the scalp. Currently, tDCS is being used as a tool to investigate mental processes (cognition) and motor function (movement) in healthy controls and to treat neurological (i.e. stroke) and psychiatric (i.e. depression and dementia) patients. tDCS has been found to improve motor processes and cognitive performance, including attention and memory functions. This study will attempt to examine the effects of tDCS on a specific aspect of short term memory to sounds measured from electrical activity (EEG) from the top of the scalp. This study will also assess the effect of a drug, dextromethorphan (DMO), commonly found in cough syrup, which is thought to regulate tDCS treatment through brain receptors. The study involves four laboratory test sessions. EEG assessments will be done in two sessions involving 'anodal' tDCS stimulation (to temporarily excite cortical activity locally), one session with DMO treatment and one with placebo treatment, and two sessions involving 'sham' tDCS stimulation (device is turned off), with the same DMO and placebo treatments. These findings will contribute to our understanding of the brain chemistry involved in tDCS treatment and its effects on cognitive abilities.
Schizophrenia is considered as the most frequent and the most severe chronic psychotic disorder. Its evolutionary modes and its clinical symptomatology remain particularly heterogeneous. Moreover, the brain processes involved in schizophrenia are still far from being clearly understood. Current empirical studies provide a mean duration comprised between 1 and 3 years without any specific diagnosis or treatment. These diagnosis issues are partly based on difficulties in the early distinction between schizophrenia and bipolar affective disorders (BD). These results emphasize the necessity of new early indices (or endophenotypes). Such markers are intended to be more specific than classical clinical manifestations. In other words, they have to be absent among patients with differential diagnosis, such as BD. Among other possible early indices, several electrophysiological disturbances have been explored. Our study is designed to mainly describe the N400 component among patients with schizophrenia or BD. This component is classically interpreted as indexing the integration the meaning of a linguistic stimulus in its preceding context. Our main hypothesis aims to show a specific alteration of N400 component among patients with schizophrenia when compared to participants with BD. The second aim of this study concerns the exploration of four other event related potentials (ERPs) among patients with schizophrenia or BD: - the P50 component, involved in early sensory gating processes, - the P300 component, thought to reflect attentional resource allocation and working memory updating of stimulus context, - the P600 component, elicited during same paradigms than N400, and reflecting their syntactic congruity. - the CNV (Contingent Negative Variation), reflecting processes of motor anticipation Regarding to their potential 'endophenotypes' status, our aim consists in comparing the N400 and three other ERPs among patients with schizophrenia or bipolar affective disorder. Since the schizophrenic specificity of such ERPs alterations still remains rarely studied, we also propose to describe the possible relations between these ERPs results and clinical scores observed among patients.
Sorghum bicolor is a naturally growing plant which has been of health benefit to the people of West Africa who traditionally prepare its leaf for various nutritional and health reasons.The food and nutritional fact analysis showed that Jobelyn is rich in Carbohydrates, Protein, Dietary Fiber, Iron, Natural Vitamins like B12 and Vitamin C. It also contains Selenium, Omega 3,6 and 9 and other essential elements and fatty acids. Although the determinants of mental health are complex, the emerging and compelling evidence for nutrition as a crucial factor in the high prevalence and incidence of mental disorders suggests that diet is as important to psychiatry as it is to cardiology, endocrinology, and gastroenterology. Evidence is steadily growing for the relation between dietary quality (and potential nutritional deficiencies) and mental health, and for the select use of nutrient-based supplements to address deficiencies, or as monotherapies or augmentation therapies. There is currently strong advocacy for the recognition of diet and nutrition as central determinants of both physical and mental health.Its anti-inflammatory and haematocrit boosting properties have been well documented though the precise mechanism of action is still largely unknown. Its use has recently been extended to the field of mental health where findings in animal study suggest it could be of help in relieve of psychosis. The need for this study is therefore aimed at investigating the effect of this drug in patients with schizophrenia which is the prototypical psychotic disorder.
Intervention aimed at improving understanding of irony in social situations by using movies and comic strip will improve theory of mind.
Almost all of antipsychotics can induce metabolic syndrome,Genetic factors play a key role in the development of metabolic syndrome,TCF7L2 and SLC30A8 are strongestly correlated with metabolic syndrome.Moreover,Antipsychotics have an effect on the expression of TCF7L2 and SLC30A8 genes.It indicates the variations of TCF7L2 and SLC30A8 play an important part in the development of antipsychotics-induced metabolic syndrome.