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The purpose of this study is to evaluate the efficacy and safety of KarXT for treatment of Schizophrenia in adolescents.

The purpose of this study is to characterize the effect of KarXT on voiding dynamics and urological safety in participants with DSM-5 schizophrenia.

The goal of this basic experimental research study is to examine how the human thalamus supports flexible thinking and behavior. Specifically, the research aims to elucidate how the mediodorsal (MD) thalamus encodes and updates "context"-the mental framework that determines which rules or actions are relevant in a given situation. This work may contribute to understanding why certain psychiatric conditions, such as schizophrenia and ADHD, involve difficulties with cognitive flexibility and control. The primary research questions are: Does the MD thalamus represent the context that organizes how working memory guides task selection? Does the MD thalamus signal when context needs to be updated after a change in task demands? Do these thalamic representations support generalization to new situations or rules? Participants will complete cognitive tasks while undergoing high-resolution brain imaging using 7-Tesla MRI. The investigators will combine behavioral data, computational modeling, and advanced neuroimaging analyses to examine how the thalamus interacts with the cortex during flexible decision-making.

The central hypothesis is this: DMN connectivity can be modulated with inhibitory cTBS when delivered on an accelerated treatment schedule. This study seeks to provide evidence that accelerated, network-targeted inhibitory stimulation of the DMN leads to both altered network activity and a concomitant behavioral change in cognitive performance in individuals with schizophrenia and schizoaffective disorder. This study will also compare the effect of inhibitory cTBS in healthy individuals, as it may also lead to both altered network activity and a behavioral change in cognitive performance in individuals without schizophrenia or schizoaffective disorder. If successful, this study will have identified a safe, effective, and broadly applicable treatment for cognitive impairment in schizophrenia that has potential for translation into many other psychiatric and neurodevelopmental disorders, such as autism.

This study will evaluate the long-term safety of NBI-1117568 in adults with schizophrenia.

This study will evaluate the efficacy of valbenazine on clinician- and patient-reported outcomes in participants with TD while receiving or after stopping a VMAT2 inhibitor.

The primary objective for this study is to evaluate the efficacy of NBI-1117568 compared with placebo on improving behavioral and psychological symptoms of schizophrenia in adults.

The purpose of this study is to evaluate the dose levels, safety, and drug levels of KarXT intramuscular injection in participants with Schizophrenia

The purpose of this study is to understand how different types of community-based mental health care affect thinking abilities, daily functioning, and brain activity in adults with schizophrenia and related conditions. The investigators are especially interested in learning whether the Clubhouse Model-a structured, supportive community for individuals with mental illness-has unique benefits compared to standard outpatient mental health services. If participants decide to join, they will be asked to complete a total of six study visits with the research team over the course of your participation. Three of these study visits are at the beginning (baseline) and the remaining three are six months later. Two of the three visits will includes interviews, questionnaires, and thinking and memory tasks (cognitive testing) and one session will be an MRI brain scan, which is a safe and non-invasive imaging procedure. The total time required for each visit will be approximately 90 minutes to two hours. Participants may take breaks as needed.

The primary objective for this study is to evaluate the efficacy of NBI-1117568 compared with placebo on improving behavioral and psychological symptoms of schizophrenia in adults.

The purpose of this research is to evaluate the efficacy of dosing iloperidone long-acting injection (LAI) compared to placebo in preventing the exacerbation of symptoms in patients with schizophrenia.

Patients with schizophrenia spectrum disorder (SSD) will be exposed to active repetitive transcranial magnetic stimulation (rTMS) from H coil combined with cognitive training for improving white matter integrity.