Kate Hone, a lecturer in the department of information systems and computing at Brunel University, is the principal investigator in a project that aims to evaluate the potential for emotion-recognition technology to improve the quality of human-computer interaction. Her study is part of a larger area of computer science called affective computing, which examines how computers affect and can influence human emotion.
—Cliff Saran, "Letting your computer know how you feel," Computer Weekly, June 24, 2003

Movellan's devices now can identify hundreds of ways faces show joy, anger, sadness and other emotions. The computers, which operate by recognizing patterns learned from a multitude of images, eventually will be able to detect millions of expressions.

Scanning dozens of points on a face, the devices see everything, including what people may try to hide: an instant of confusion or a fleeting grimace that betrays a cheerful front.

Such computers are the beginnings of a radical movement known as "affective computing." The goal is to reshape the very notion of machine intelligence.
—Charles Piller, "A Human Touch for Machines," Los Angeles Times, May 7, 2003

For Picard, the path to an answer is strewn with other questions, equally challenging but more specific. For example, should machines be given emotional self-awareness? Should they be given emotional skills beyond the power of humans? Should they be allowed to feign and hide emotions in the way that humans do? The answers are by no means obvious: a machine tutoring a child with brain damage may feel exasperation, but showing the exasperation might interfere with the teaching process by upsetting the child.

Picard hesitates to be dogmatic, but if her vision of "affective computing" does come to pass, she believes one rule may eventually become necessary: no emotions without ethics. After all, if HAL hadn't valued the success of the mission above the lives of his crewmates, the tragedy could never have happened. The horror of 2001 isn't that HAL had emotions, says Picard. "It's that he didn't have the intelligence and ethics to handle them."
—"You're wrong, Mr Spock," New Scientist, April 27, 1996