||My PhD thesis focuses on contemporary research within the field of Human-Computer Interaction (HCI). The thesis explores two discursive trends in contemporary HCI, materiality and the self, and how these discourses describe interaction. Through a critical reading of 171 HCI research articles a number of themes are identified and argued to construct a dominant perspective on the interaction between humans and computers. These themes are then analyzed and contrasted with themes identified through explorations of media scholar Mark C. Taylorís philosophical project. Based on the results presented in my thesis, I will discuss possible consequences of using Taylorís philosophy as theoretical resource when conducting research on the interaction between humans and computers. Through Taylorís lens, technology can be understood as an existential arena in which we are continuously being constituted through interaction, and interaction can thus be conceptualized as an existential practice.