and the role played by gaze and body orientation in the management of turn-taking. It also establishes some questions for other disciplines: for example, the split second timing of turn-transition sets up a cognitive 'bottle neck' in which potential speakers must attend to incoming speech while also preparing their own contribution - something which imposes a heavy load of human processing capacity, and which may impact the structure of languages.

However, the original formulation in Sacks et al.1974 is designed to model turn-taking only