[PDF][PDF] Using a human face in an interface

JH Walker, L Sproull, R Subramani - Proceedings of the SIGCHI …, 1994 - dl.acm.org
JH Walker, L Sproull, R Subramani
Proceedings of the SIGCHI conference on human factors in computing systems, 1994dl.acm.org
We investigated subjects' responses to a synthesized talking face displayed on a computer
screen in the context of a questionnaire study. Compared to subjects who answered
questions presented via text display on a screen, subjects who answered the same
questions spoken by a talking face spent more time, made fewer mistakes, and wrote more
comments. When we compared responses to two different talking faces, subjects who
answered questions spoken by a stern face, compared to subjects who answered questions …
Abstract
We investigated subjects’ responses to a synthesized talking face displayed on a computer screen in the context of a questionnaire study. Compared to subjects who answered questions presented via text display on a screen, subjects who answered the same questions spoken by a talking face spent more time, made fewer mistakes, and wrote more comments. When we compared responses to two different talking faces, subjects who answered questions spoken by a stern face, compared to subjects who answered questions spoken by a neutral face, spent more time, made fewer mistakes, and wrote more comments. They also liked the experience and the face less. We interpret this study in the light of desires to anthropomorphize computer interfaces and suggest that incautiously adding human characteristics, like face, voice, and facial expressions, could make the experience for users worse rather than better.
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