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Using Transcranial Magnetic Stimulation (TMS) to Understand Hallucinations in Schizophrenia

Schizophrenia Clinical Trial

Official title:
Empirical Validation of a Cerebellar-cortical Hallucination Circuit

Clinical Trial Summary

This study uses a noninvasive technique called transcranial magnetic stimulation (TMS) to study how hallucinations work in schizophrenia. TMS is a noninvasive way of stimulating the brain, using a magnetic field to change activity in the brain. The magnetic field is produced by a coil that is held next to the scalp. In this study the investigators will be stimulating the brain to learn more about how TMS might improve these symptoms of schizophrenia.

Clinical Trial Description

This study tests the hypothesis that hallucinations in schizophrenia are mediated by network pathophysiology, and that network pathophysiology can be quantified by the functional connectivity of a cerebellar-thalamo-cortical circuit. To accomplish this, participants will be recruited who are diagnosed with schizophrenia or schizoaffective disorder who experience auditory hallucinations. Participants will undergo an initial screening session to complete informed consent and undergo baseline assessments of schizophrenia symptom severity. These assessments include reporter-based measures such as the Positive and Negative Syndrome Scale (PANSS). Participants will then undergo an MRI scan that includes structural and resting-state functional magnetic resonance imaging (rsfMRI). These rsfMRI imagines will be used to isolate individual resting state networks for targeting of rTMS modulation. Participants will then undergo five days of twice daily rTMS sessions. One week after the last rTMS session, participants will undergo follow-up MRI imaging and the same study assessments. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05343598
Study type Interventional
Source Mclean Hospital
Contact Mark Halko, PhD
Email mhalko@mclean.harvard.edu
Status Recruiting
Phase N/A
Start date October 13, 2021
Completion date October 31, 2026
View Details
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