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Computer knows how much pain you are in


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A new  algorithm can rate how much pain you are in just by looking at your face.

By examining tiny facial expressions and calibrating the system to each person, it provides a level of objectivity in an area where that’s normally hard to come by.

According to its creator Dianbo Liu the main challenge is measurement of pain levels as people express pain differently, so a doctor’s estimate of a patient’s pain can often differ from a self-reported pain score.

This system might be useful in determining real pain from faked one.

The study was published in the arXiv.

Mentioned in this article:

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Repository of electronic preprints.


Researcher working on machine learning on healthcare data. Research fellow at Harvard.


Professor of Psychology at the University of Pittsburgh.


Private land-grant research university


Public state-related research university