The Effects of Brief, Psychological Interventions (Micro-Interventions) on the Individual Stress Reactivity
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 90
- 试验地点
- 1
- 主要终点
- Change in Subjective Stress Ratings
研究概览
简要总结
This study aims to investigate the effects of short, psychological interventions on bio-psychological stress responses after an acute stressor. The efficacy of two different approaches (expectation-bases vs. acceptance-based) will be compared to a control-group.
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
- 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
- 是
入选标准
- •fluent in German language
排除标准
- •chronic disease
- •mental disease
- •the evening before the day of the experiment until end of the experiment (the next day):
- •caffeine, alcohol, intensive physical exercise, chewing gum
- •acute hay fever
- •current intake of psychotropic medication
- •current intake of orale contraceptives
- •visual impairments
- •heart conditions (self and close relatives)
研究组 & 干预措施
Expectation
Participants are asked to think of three strength which have helped them in prior stressful events. They then have to think of ways how these strength may help them in future stressful situations, i.e. a test in this experiment.
干预措施: Expectation (Behavioral)
Acceptance
Participants listen to an audio-instruction on cognitive defusion. They shall observe the thoughts and feelings of stress and, with the help of the instruction, distance themselves from it.
干预措施: Acceptance (Behavioral)
Control
Participants wait for the stress-test to start.
结局指标
主要结局
Change in Subjective Stress Ratings
时间窗: at baseline, before the intervention, after the intervention; during the stressor, after the stressor; in total 45 minutes
VAS (visual analogue scale)
Change in Cortisol Levels
时间窗: at baseline (min. -37), after the intervention (min. -19), after the stressor (min. 0), recovery 1 (min. +15), recovery 2 (min. +30); in total 67 minutes
saliva sample
Changes in Heart-Rate-Variability (HRV)
时间窗: during baseline (duration 10 minutes), during the stressor (duration 20 minutes), during recovery (duration 10 minutes); in total 40 minutes
electrocardiogram
Changes in Affect
时间窗: at baseline, after the stressor; in total 45 minutes
VAS (visual analogue scale)
次要结局
- Self-Efficacy(at baseline, after the recovery-phase; in total 55 minutes)
- Positivity(at baseline, after the recovery-phase; in total 55 minutes)