Person by Situation Interaction: Matching Suggestions to Participants' Motivational Styles
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- Changes in subjective ratings of acute thermal pain
研究概览
简要总结
This study examines the effects of placebo suggestions tailored to match or mismatch individual participants' motivational styles-an issue of person-situation 'fit' with important effects in public health settings, but which has been ignored in past research.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- Single (Participant)
盲法说明
Participants will not be aware of the type of suggestion (or the fact there are different types of suggestions) during the experiment. They will be debriefed upon the study's conclusion.
入排标准
- 年龄范围
- 18 Years 至 55 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy participants
- •Dominant promotion focus or dominant prevention focus (based on our screening)
排除标准
- •Currently or recently suffered from chronic pain (based on screening)
- •Cannot tolerate heat pain applied to the forearm, based on a calibration task at the beginning of the experiment
结局指标
主要结局
Changes in subjective ratings of acute thermal pain
时间窗: Measured repeatedly, immediately after thermal stimuli on the day of participation. Averaged and compared across interventions.
Following each thermal stimulus, participants are asked to rate how painful it was, on a semi-circular computerized scale. Ratings are based on the angle (0-180), with higher angle representing higher pain ratings. We will average and compare the pain ratings within participant across interventions.
Changes in subjective ratings of pain expectations
时间窗: Measured repeatedly, immediately before thermal stimuli on the day of participation. Averaged and compared across interventions.
Before each thermal stimulus, participants are asked to rate how painful they expect the next stimulus to be, on a semi-circular computerized scale. Ratings are based on the angle (0-180), with higher angle representing higher expectations ratings. We will average and compare the expectation ratings within participant across interventions.
次要结局
- Facial expressions(Immediate response measured during painful stimulation on the day of participation. Averaged and compared across interventions.)
- Thermal imaging of the face(Immediate response measured during painful stimulation on the day of participation. Averaged and compared across interventions.)
- Changes in skin conductance response measured with a Biopac device(Immediate response measured during painful stimulation on the day of participation. Averaged and compared across interventions.)
- Changes in heart rate measured with a Biopac device(Immediate response measured during painful stimulation on the day of participation. Averaged and compared across interventions.)
研究者
Tor Wager
Principal Investigator
Trustees of Dartmouth College