For the study, the researchers first took hundreds of pictures of facial expressions and separated the images into different color channels that correspond to how human eyes see color - either in a red/green channel or blue/yellow.

为了开展研究，研究人员首先拍摄了数百张脸部表情的照片，并将这些照片按照人眼感知颜色的方式相应归入不同颜色通道——红/绿通道或蓝/黄通道。

They then ran the images through computer analysis and found that emotions such as ‘happy’, ‘sad’, ‘anger’ or ‘disgust’ all formed unique color patterns.

接着他们用电脑对照片进行分析，并发现“快乐”、“悲伤”、“生气”或“厌恶”等情绪都能构成独特的脸色模式。

‘Disgust’, for instance, creates a blue-yellow cast around the lips, but with a red-green cast around the nose and forehead.

举例来说，“厌恶”会让嘴唇四周泛出黄蓝色调，而鼻子和前额周围则会呈现红绿色调。

Happiness is seen in red at the checks and temples and a little blue around the chin, but the same face with a slightly redder forehead and slightly less blue chin registers as ‘surprised.’

快乐的人脸颊和太阳穴发红，下巴周围则会有点发蓝，但如果前额略微更红些，下巴没那么蓝，那么这个人的情绪则是“惊讶”。

Although the team did not look at 'envy' they suggest that the green color linked to feelings of jealousy could stem from the nausea which often accompanies the emotion.

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