Attentive User Interface
Vertegaal, R. (2003). Attentive User Interfaces. Communication of ACM(4), 46. http://www.hml.queensu.ca/papers/vertegaalcacm0303.pdf
Mamuji, R. V. (2006). Designing for augmented attention: Towards a framework for attentive user interfaces. Computers in Human Behavior. http://interruptions.net/literature/Vertegaal-CHB06.pdf
Revisit the section on Interpreting Directed Attention to People and Objects:
Ballendat, T. M. (2010). Proxemic Interaction: Designing for a Proximity and Orientation-Aware Environment. Calgary, Alberta, Canada: Department of Computer Science, University of Calgary.
Eric Horvitz, C. K. (2003). Models of Attention in Computing and Communication: From Principles to Applications. Communication of ACM, 52-59.
Itti, L., Baldi, P. (2005). Bayesian Surprise Attracts Human Attention. Bayesian Surprise Attracts Human Attention. Neural Information Processino Systems