An Eye-tracking Study to Investigate Oxytocin's Effect on Attentional Bias Training
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Reaction time (RT) difference - oxytocin effects
研究概览
简要总结
This study aims to investigate oxytocin's effect on attentional bias training. Healthy participants will undergo a dot-probe task-based training to direct their attention away from negative stimuli (as compared to neutral). Effects of the training will be assessed using an eye-tracking anti-saccade task.
详细描述
In this study, a dot-probe task will be used to examine if subjects show an attentional bias towards negative stimuli and whether the bias can be modified using a subsequent attentional bias training. During this training participants learn to direct their attention away from threatening stimuli. In a between-subject placebo controlled design participants will receive either intranasal oxytocin or placebo before the training to examine whether oxytocin could facilitate the effects of the attention training. Effects of the training and of oxytocin on the training will be assessed by means of an eye-tracking anti-saccade task. Based on previous studies showing the strongest effects of threat-attentional bias training in high anxious subjects, the study will recruit participants with an elevated trait anxiety.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 30 Years(Adult)
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •male participants with elevated trait anxiety (> 45 scores as assessed with the State and Trait Anxiety Inventory, Spielberger, 1983)
- •without past or current psychiatric or neurological disorders
排除标准
- •history of head injury
- •medical or psychiatric illness
- •smoking or drinking 24 hours before the experiment
研究组 & 干预措施
oxytocin group
oxytocin treatment
干预措施: Oxytocin (Drug)
placebo group
placebo treatment
干预措施: placebo (Drug)
结局指标
主要结局
Reaction time (RT) difference - oxytocin effects
时间窗: Before drug administration (pre-treatment baseline) and 55 minutes after drug administration
Difference before and after oxytocin administration: reaction time to negative and neutral stimuli in the dot-probe task
Reaction time (RT) difference - training effects
时间窗: Before drug administration - 55-90 minutes after drug administration
Difference before and after training: reaction time to negative and neutral stimuli in the dot-probe task
Saccade latency difference - training effects
时间窗: Before drug administration - 55-90 minutes after drug administration
Difference before and after training in saccade latency in the anti-saccade task
次要结局
未报告次要终点
研究者
Benjamin Becker
Professor
University of Electronic Science and Technology of China
