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神经精神病患者和健康志愿者的磁共振成像 (MRI)

2026年11月4日 更新者:National Institute of Mental Health (NIMH)

使用 3.0 特斯拉 MRI 和脑磁图对神经精神病患者和正常志愿者进行结构和功能成像

The purpose of this study is to use brain imaging technology to compare differences in brain structure, chemistry, and functioning in individuals with brain and mental disorders compared to healthy volunteers.

Schizophrenia is a brain disorder that results from subtle changes and abnormalities in neurons. These deficits likely occur in localized regions of the brain and may result in widespread, devastating consequences. The neuronal abnormalities are inherited through a complex combination of genetic and environmental factors. Brain imaging technologies can be used to better characterize brain changes in individuals with schizophrenia. This study will use magnetic resonance imaging (MRI) scans to identify predictable, quantifiable abnormalities in neurophysiology, neurochemistry and neuroanatomy that characterize schizophrenia and other neurological and neuropsychiatric disorders....

研究概览

地位

完全的

详细说明

This protocol is meant to provide a matrix for multiple, simultaneous brain imaging investigations using magnetic resonance imaging (MRI) at 3.0 Tesla (3T). We intend to study regional brain structure, physiology, and biochemistry in living human subjects, both healthy and ill. Based on multiple clinical, neuropathological, and functional neuroimaging studies, it is clear that schizophrenia is a brain disorder arising from subtle neuronal deficits (for lack of more specific terminology). These deficits likely arise in a few key regions such as dorsolateral prefrontal cortex and hippocampal formation, that result in widespread, multifaceted, and devastating clinical consequences. These neuronal deficits are clearly heritable, although in a complex fashion from multiple genes interacting in an epistatic fashion with each other and the environment. We hypothesize that these neuronal deficits, clearly resulting in quantifiable behavioral abnormalities in schizophrenic patients, will produce predictable, quantifiable aberrations in neurophysiology that we can "map" using magnetic resonance imaging. In spite of numerous functional imaging findings, clinical applications remain scarce and pathognomonic findings absent. Therefore, we do not anticipate that an approach based solely on any one modality is likely to significantly advance our knowledge base. Instead, we propose to create brain imaging datasets for individual human subjects predicated on 1) the appraisal of brain function from multiple domains simultaneously; 2) the characterization of brain function via summation and intercorrelation of these data; and 3) the digestion of these data based on the parsing of complex clinical phenomenology into quantifiable neurophysiological parameters. Thus, in addition to the identification of those parameters that best characterize and identify manifest schizophrenia (i.e., state variables), we hypothesize that some of these fundamental characteristics will be heritable. These fundamental characteristics, so-called endo- or intermediate phenotypes, represent powerful tools to find susceptibility genes and have already generated a number of linkage findings.

研究类型

观察性的

注册 (实际的)

3273

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • Maryland
      • Bethesda、Maryland、美国、20892
        • National Institutes of Health Clinical Center

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 至 120年 (成人、年长者)

接受健康志愿者

是的

有资格学习的性别

全部

取样方法

非概率样本

研究人群

Patients with schizophrenia and healthy subjects from the community.

描述

  • INCLUSION CRITERIA:

CONTROLS:

No psychiatric or severe chronic medical illness at the time of the study, and by history. This includes the absence of substance abuse histories, learning disabilities and all DSM IV disorders. The investigators will evaluate medical histories and medical conditions that are judged not to interfere with the study may be allowed.

No use of psychotropic substances in the last 3 months.

There is no upper age limit. The lower age limit is 18 years.

Controls will all have the capacity to consent.

PATIENTS:

Schizophrenia, any subtype or schizo-affective disorder according to DSM IV .

Bipolar Disorder with Psychotic Features according to DSM IV.

Menstrually-Related Mood Disorder.

Mild to Moderate Parkinson's Disease (Hoehn and Yahr Stage 1-3).

Williams Syndrome (partial or full) with IQ in the normal range.

Patients with Multiple Sclerosis.

EXCLUSION CRITERIA:

CONTROLS AND PATIENTS:

Impaired hearing.

Pregnancy.

Head trauma with loss of consciousness in the last year, or any evidence of functional impairment due to and persisting after head trauma.

Patients or healthy volunteers with a known risk from exposure to high magnetic fields (e.g. patients with pace makers) and those who have metallic implants (e.g. braces) in the head region (likely to create artifact on the MRI scans) will be excluded from participating in the fMRI studies.

History of any (excepting nicotine-related) DSM5-defined moderate to severe substance use disorder (or DSM-IV-defined substance dependence).

Cumulative lifetime history of any (excepting nicotine-related) DSM5-defined mild substance use disorder (or any DSM-IV-defined substance abuse), either in excess of 5 years total or not in remission for at least 6 months.

NIMH employees and staff and their immediate family members will be excluded from the study per NIMH policy.

Non-NIMH NIH employees and staff may participate and will be given the NIH Frequently Asked Questions (FAQs) for NIH Staff Who are Considering Participation in NIH Research.

PATIENTS:

Coexistence of another major mental illness at the time of the study. If the patients experienced other mental illnesses in the past (e.g. a learning disability or major depression), then this should be judged to be fully recovered.

Major concurrent medical illness likely to interfere with the acquisition of the task.

Concomitant medications which could interfere with performance on the task.

Involuntary movements that interfere with positioning in the MRI scanner).

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 观测模型:CASE_CONTROL
  • 时间观点:CROSS_SECTIONAL

队列和干预

团体/队列
Healthy volunteers

Healthy subjects from the community

Schizophrenia

Patients with schizophrenia and psychosis

Williams Syndrome

Individuals with copy number variation in the Williams Syndrome Region

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
regional MRSI measures
大体时间:spectroscopy

GABA and glutamate measurements in schizophrenia and healthy controls.

spectroscopy
magnetic field potentials
大体时间:MEG

Group differences in MEG signal for patients with schizophrenia and healthy subjects.

MEG
fMRI BOLD responses
大体时间:MRI study completion

Group differences between patients with schizophrenia and healthy subjects, also genotyping used to characterize subjects as well.

MRI study completion
DTI anisotropy measures
大体时间:DTI

Compare fractional anisotropy and other measures of white matter connectivity for schizophrenic patients and controls.

DTI
brain volumetric measures
大体时间:VBM

VBM and cortical parcellation are used in schizophrenia and healthy controls.

VBM

次要结果测量

结果测量
大体时间
神经心理学任务表现数据
大体时间:不扩散条约
不扩散条约

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Karen F Berman, M.D.、National Institute of Mental Health (NIMH)

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2000年2月17日

研究注册日期

首次提交

2000年2月15日

首先提交符合 QC 标准的

2000年2月15日

首次发布 (估计的)

2000年2月16日

研究记录更新

最后更新发布 (实际的)

2026年11月5日

上次提交的符合 QC 标准的更新

2026年11月4日

最后验证

2026年7月22日

更多信息

与本研究相关的术语

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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