Only recently have we been able to decipher this mystery, by scanning the brains of people as they process both positive and negative information about the future.

最近我们才解开了这个奥秘，是通过在人们处理对未来的积极和消极信息时扫描他们大脑的方式解开的。

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Processing the aluminum weld image from the scanning of the X ray negative can derive the binary image of the weld defects.

利用X射线底片扫描成像法得到铝合金焊缝图像，再通过图像处理方法即可得到焊接缺陷二值图象。

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Method 64 hypercholesterolemic patients were divided into two groups according to the coronary scanning (negative group and positive group).

方法对6 4例高血脂患者（分为冠脉造影阳性组和阴性组）进行颈动脉扫查。

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Soon, scanning for the positive rather than the negative will become second nature.

FORBES: Seven Steps To Happiness At Work

By scanning the brains of people while they learned from positive and negative information about the future we uncovered a possible answer to this puzzle.

CNN: Why we fool ourselves into optimism