In our studies of human–computer interaction (HCI), also known as human-machine interaction, and perceptual-motor interaction in general, we have adopted two basic theoretical and analytical frameworks as part of an integrated approach. In the first framework, we view perceptual-motor interaction in the context of an information-processing model. In the second framework, we have used analytical tools that allow detailed investigations of both static and dynamic interactions. Our chapter in the previous edition of this handbook (Chua, Weeks, & Goodman, 2003) reviewed both avenues of research and their implications for HCI with a particular emphasis on our work regarding the translation of perceptual into motor space. Much of our more recent research, however, has explored the broader interplay between the processes of action and attention. Thus, in the present chapter, we turn our focus to aspects of this work that we believe to have considerable implications for those working in HC