2 Conversational Floor as a Finite-State Machine 2.1 6-state finite state models of turn-taking In the 1960's and early 1970's, several researchers proposed models to explain the rhythmic turn-taking patterns in human conversation.
jaffe and Feldstein (1970) studied the mean duration of pauses, switching pauses (when a different speaker takes the floor), simultaneous speech, and (singlespeaker) vocalizations in recorded dyadic conversations.