The New York Times:
How well can computers interact with humans? Certainly computers play a mean game of chess, which requires strategy and logic, and “Jeopardy!,” in which they must process language to understand the clues read by Alex Trebek (and buzz in with the correct question).
But in recent years, scientists have striven for an even more complex goal: programming computers to read human facial expressions.
Jeffrey Cohn, a University of Pittsburgh professor of psychology who also conducts research on computers and facial expressions, said the CERT study addressed “an important problem, medically and socially,” referring to the difficulty of assessing patients who claim to be in pain. But he noted that the study’s observers were university students, not pain specialists.
Dr. Bartlett said she didn’t mean to imply that doctors or nurses do not perceive pain accurately. But “we shouldn’t assume human perception is better than it is,” she said. “There are signals in nonverbal behavior that our perceptual system may not detect or we don’t attend to them.”
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