Computer vision and emotional privacy

A study published last week (and summarized here and here) demonstrated that a computer could be trained to detect real versus faked facial expressions of pain significantly better than humans. Participants were shown video clips of the faces of people actually in pain (elicited by submerging their arms in icy water) and clips of people simulating pain (with their arms in warm water). The participants had to indicate for each clip whether the expression of pain was genuine or faked.

Whilst human observers could not discriminate real expressions of pain from faked expression better than chance, a computer vision system that automatically measured facial movements and performed pattern recognition on those movements attained 85% accuracy. Even when the human participants practiced, accuracy only increased to 55%.

The authors explain that the system could also be trained to recognize other potentially deceptive actions involving a facial component. They say:

In addition to detecting pain malingering, our computer vision approach maybe used to detect other real-world deceptive actions in the realm of homeland security, psychopathology, job screening, medicine, and law. Like pain, these scenarios also generate strong emotions, along with attempts to minimize, mask, and fake such emotions, which may involve dual control of the face. In addition, our computer vision system can be applied to detect states in which the human face may provide important clues about health, physiology, emotion, or thought, such as drivers’ expressions of sleepiness and students’ expressions of attention and comprehension of lectures, or to track response to treatment of affective disorders.

The possibility of using this technology to detect when someone’s emotional expressions are genuine or not raises interesting ethical questions. I will outline and give preliminary comments on a few of the issues: Continue reading

What is it like to be a bee?

Do bees have feelings? What would that mean? And if they do have feelings, how should we treat them? Do we have a moral obligation toward insects?

Honeybees “exhibit pessimism” according to a recent study published in Current Biology, and summarized in this Wired Science article. Pay attention to the Wired headline – “Honeybees might have emotions” – and to these choice clippings as well: “You can’t be pessimistic if you don’t have an inner life.” And, “invertebrates like bees aren’t typically thought of as having human-like emotions.” The implication, of course, is that these invertebrates have been shown to have them.

Inner life? Human-like emotions? Is there “something it is like,” then, to be a bee?

From an ethics standpoint, questions like these make a big difference. Continue reading


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