Evaluation of a Visual Remediation Intervention for Schizophrenia
2018年3月28日 更新者:Judy L. Thompson, Ph.D.、Rutgers, The State University of New Jersey
Schizophrenia is a severe psychiatric condition that is associated with significant distress and disability.
In addition to cognitive difficulties in domains such as attention, memory, and problem-solving, individuals with schizophrenia can experience visual-processing abnormalities, including impairments in visual acuity, low-contrast stimulus detection, and perceptual organization (i.e., perceiving visual information in an organized "perceptual whole").
These visual impairments are clinically significant, with research indicating that specific visual-processing alterations are significantly related to poorer performance on higher-level cognitive tasks, impaired facial emotion recognition, impaired reading ability, and worse functional outcomes.
Despite such findings, very few studies have evaluated the therapeutic potential of interventions that are specifically designed to improve visual processing ("visual remediation") for individuals with schizophrenia.
Thus the aim of this study is to evaluate the efficacy of a computerized visual perceptual training program that targets low- and mid-level visual processes to improve visual, cognitive, and emotion-recognition functions in outpatients with schizophrenia through a small randomized controlled trial.
The investigators will recruit up to 40 individuals with schizophrenia or schizoaffective disorder who are receiving treatment in Rutgers University Behavioral Health Care (UBHC) Partial Hospital Program; half will be randomized to receive the computerized visual training, which will be delivered in small groups over a period of 12-14 weeks.
The specific aims of this study are to collect preliminary data on: 1) the feasibility of participant recruitment and retention, and tolerability of the treatment components of the study; and 2) the efficacy of computerized visual training (VT) to improve low- and mid-level visual processes, and higher-level cognitive and social-cognitive performance.
Based on preliminary data, the investigators hypothesize that the target number of participants will be successfully recruited and engaged in the VT intervention (n=16) and control condition (n=16), and that the participants who receive VT will demonstrate greater improvements on measures of low- and mid-level visual, higher-level cognitive, and social-cognitive functions compared to those who receive standard partial-hospital care without VT.
The results of this initial trial will be used to inform the design and application for funding of a larger-scale investigation of visual remediation for individuals with schizophrenia.
研究概览
地位
地位
未知
干预/治疗
干预/治疗
研究类型
研究类型
介入性
注册 (预期的)
注册
40
阶段
阶段
- 不适用
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。
学习联系方式
学习联系方式
- 姓名:Judy L. Thompson, Ph.D.
- 电话号码:732-235-9297
- 邮箱:judy.thompson@rutgers.edu
研究联系人备份
- 姓名:Steven M. Silverstein, Ph.D.
- 电话号码:732-235-5149
- 邮箱:steven.silverstein@rutgers.edu
学习地点
-
-
New Jersey
-
Piscataway、New Jersey、美国、08854
- 招聘中
- Rutgers University Behavioral Health Care (UBHC)
-
接触:
- Judy L. Thompson, Ph.D.
- 电话号码:732-235-9297
- 邮箱:judy.thompson@rutgers.edu
-
-
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
资格标准
适合学习的年龄
18年 至 60年 (成人)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- Between the ages of 18-60.
- Meets DSM-5 criteria for schizophrenia, schizoaffective disorder, or schizophreniform disorder.
- Currently attends the Rutgers UBHC Partial Hospital Program and plans to continue attending for at least the next 16 weeks.
- If the participant is treated with antipsychotic medication, he/she is on stable treatment with this medication (i.e. no change in medication type, or substantial change in dose, for at least 4 weeks prior to participating in the study and no anticipated change for the next 16 weeks).
- Has capacity to provide informed consent.
- Is fluent in English.
- Has a minimum binocular visual acuity of 20/100, as assessed at baseline using a standard eye chart, with the participant's typical vision correction (e.g., with glasses if the participant typically wears glasses).
Exclusion Criteria:
- Has met DSM-5 criteria for a substance-use disorder within the last 12 months (with the exception of tobacco use disorder, which will be permitted).
- Has a verbal IQ score of < 70 per the Wechsler Test of Adult Reading (WTAR).
- Current or recent history of a medical condition that significantly affects the structure or function of the brain or eye (e.g., ocular or retinal disease, thyroid disease, untreated hypertension, uncontrolled diabetes).
- Current or past neurological or neurodevelopmental disorder such as seizure disorder, cerebral palsy, intellectual disability, or pervasive developmental disorder.
- Has a "lazy eye" or history of severe eye injury.
- Has received electroconvulsive therapy within the last 8 weeks.
- Has a history of head injury with loss of consciousness lasting more than 10 minutes or with neurobehavioral consequences of the injury (e.g., need for follow-up treatment, cognitive or behavioral changes following the injury, etc.).
- Any current use (last month) of non-prescribed amphetamines, opiates, cocaine, sedative-hypnotics, and/or cannabis.
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
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:单身的
手臂数量
2
武器和干预
参与者组/臂参与者组/臂 |
干预/治疗干预/治疗 |
|---|---|
|
实验性的:visual training condition
Participants in the visual training condition will participate in the visual training (VT) group, during which they will complete computerized visual training that targets low- and mid-level visual processes.
Each group will include a maximum of 3 participants and will meet 3 times a week over a period of 12-14 weeks.
|
The computerized visual training (VT) program that is being evaluated was developed by Aaron Seitz, who is a co-investigator on this project; it includes 1) ULTIMEYES, which targets broad-based visual functions, including low-level processes (e.g., visual acuity, contrast sensitivity), and 2) visual perceptual organization exercises, which target mid-level visual processes.
Both elements of the program also involve higher-level visual functions, such as visual search and visual attention.
|
|
无干预:control condition
Participants assigned to the control condition will receive standard Partial Hospital care without visual training.
|
研究衡量的是什么?
主要结果指标
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
contrast sensitivity
大体时间:approximately 14 weeks (baseline and post-treatment)
|
A measure of low-contrast stimulus detection; contrast sensitivity thresholds at varying spatial frequencies will be examined.
|
approximately 14 weeks (baseline and post-treatment)
|
|
contour integration
大体时间:approximately 14 weeks (baseline and post-treatment)
|
A measure of visual perceptual organization; total number correct, adjusted for guessing, will be examined.
|
approximately 14 weeks (baseline and post-treatment)
|
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。
合作者
合作者
调查人员
调查人员
- 首席研究员:Judy L. Thompson, Ph.D.、Rutgers University
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)
学习开始
2017年2月23日
初级完成 (预期的)
初级完成
2019年2月28日
研究完成 (预期的)
研究完成
2019年2月28日
研究注册日期
首次提交
首次提交
2017年4月12日
首先提交符合 QC 标准的
首先提交符合 QC 标准的
2017年4月17日
首次发布 (实际的)
首次发布
2017年4月18日
研究记录更新
最后更新发布 (实际的)
最后更新发布
2018年3月30日
上次提交的符合 QC 标准的更新
上次提交的符合 QC 标准的更新
2018年3月28日
最后验证
最后验证
2018年3月1日
更多信息
与本研究相关的术语
其他相关的 MeSH 术语
其他研究编号
其他研究编号
- Pro20160000350
- PC 51-16 (其他赠款/资助编号:New Jersey Health Foundation)
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)?
不
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
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.