The semblance of truth: the development of dialogue in computer-based characters

Using a play written by the author as a case study this paper examines the development of computer characters in a theatrical production. In particular, it examines the use of interaction, audio and visual interfaces, and variation in prosody to generate 'a semblance of truth' that Coleridge argued is a requirement of the 'willing suspension of disbelief'. Further, the paper argues, following the logic of the "Media Equation" by Reeves and Nass, that it is belief, not disbelief, that is automatic. From this stand point, the paper argues that an audience would accept computer characters in the same manner as they would accept human characters.