在其中四段关于热水的视频中，前40秒，演员将冒气的水壶里的热水逐渐加入容器中，并每隔几秒检查一下水温。

The actor was then shown with their hand immersed in the water for a further two minutes and 20 seconds.

之后，演员的手完全浸入水中，持续两分钟20秒。

The actor did the same in the 'cold' videos, but instead, filled the container with a bag of ice.

在另外四段关于冷水的视频中演员做同样的动作，但容器中加入了一袋冰。

Four control videos with the actors’ hand in front of a tank of room temperature water were also shown.

同时还有四段对照视频，演员的手放在装有与室温相同温度的水的容器前。

None of the actors’ faces could be seen and the temperature of the room was kept at a constant 21°C (70°F).

镜头里看不到演员的脸，室温保持在21摄氏度（70华氏度)。

The researchers monitored the participants’ hand temperature while the watched the videos.

研究人员监控了参与者观看视频时的手部温度。

They found that when they viewed the actors putting their hands in the iced water, their temperatures dropped by a small, but statistically significant, amount: 0.2°in their left hands, and 0.05°in their right.

他们发现，当参与者看到演员将手放入冰水时手部温度会有小幅度下降，幅度虽小，但在统计数据上很显著。左手温度下降了0.2摄氏度右手温度下降了0.05摄氏度。

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