Transcranial Electrical Stimulation Combined With Interim Testing Promotes Temporal Memory in Patients With Schizophrenia
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 75
- 试验地点
- 1
- 主要终点
- proactive interference rate
研究概览
简要总结
Temporal order memory deficits are a central feature of cognitive abnormalities in schizophrenia. The dorsolateral prefrontal cortex contributes to the extraction of temporal contextual information. Transcranial direct current stimulation (tDCS) and interim testing have been shown to be external techniques that can improve temporal order memory deficits in schizophrenia patients. Transcranial alternating current stimulation (tACS) can also improve cognitive functioning in patients with schizophrenia. This study intends to investigate the learning effects of temporal order memory under two learning strategies during tDCS targeting the left dorsolateral prefrontal cortex (L-DLPFC) and transcranial direct current stimulation (tDCS) interventions in patients with schizophrenia, to investigate whether it can promote the retention of temporal order memory in patients, and to compare the differences in the effects of the two intervention modalities.
This study was planned to recruit 75 patients diagnosed with schizophrenia from the hospital.
A single online tDCS (2 mA × 20 min) and tACS (1.5 mA × 20 min, theta rhythm) intervention was conducted during which participants performed a temporal-sequence memory task for visual pictures, and test scores were compared for each stimulus type on an intermediate test and repetition of the two strategies of learning.
详细描述
Treatment was conducted by two examiners, and participants' memory levels were tested before the start of the experiment using a flanker task and a numerical breadth task as baseline tests. The experimental procedure was divided into a learning phase, in which participants memorized the sequence of pictures, and a testing phase, in which participants were required to recall a picture presented after the probe item. Participants were randomly assigned in parallel to each stimulus type and learning strategy, with 25 receiving tdcs anodized stimuli, 25 receiving sham stimuli, and another 25 receiving tacs stimuli. And participants' inhibitory control continued to be tested using the flanker task before and after the stimuli for pre- and post-intervention comparisons.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Meeting the diagnostic criteria for schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5);
- •Aged 18 years or older, regardless of gender, with an educational level of elementary school or above;
- •All patients received stable-level antipsychotic medication treatment, were in a stable phase of disease treatment, able to understand the testing requirements, and cooperated to complete all research tasks;
- •No history of neurological disorders or other serious physical illnesses, and no history of intellectual disability;
- •No color blindness, color weakness, or other color vision impairments, with normal vision or corrected vision.
排除标准
- •Clear cognitive impairment caused by somatic or cerebral organic lesions, such as cerebrovascular diseases, traumatic brain injury, etc;
- •Individuals with mental disorders caused by substance dependence or abuse, or the use of psychoactive substances;
- •History of brain injury or other central nervous system-related organic diseases;
- •Individuals at significant risk of suicide or harming others;
- •Participation in similar experiments in the past 30 days prior to baseline.
结局指标
主要结局
proactive interference rate
时间窗: 5mins to 24 hours
The rate of intrusion of prior information when participants recalled the current information was counted.
Correctness of temporal recall
时间窗: 5mins to 24 hours
Stimulus content was presented using the Eprime experimental program, and participants pressed key responses during the test phase to record their rate of correctness. Stimulus content was presented using the Eprime experimental program, and participants pressed key responses during the test phase to record their rate of correctness.
次要结局
未报告次要终点
研究者
Xiaofeng Ma
Professor
Northeast Normal University