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Ambient displays are used to provide information to users in a non-distracting manner. The purpose of this research was to examine the efficacy of facial expressions as a method of conveying information to users in an unobtrusive way. Facial expression recognition requires very little if any conscious attention from the user, which makes it an excellent candidate for the ambient presentation of information. Specifically, the current study quantified the amount of attention required to decodedoi:10.1037/e572172013-445 fatcat:6pf6ksjtffewzeumgz4ybd4noa