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Effects of Timing on Users' Agency during Mixed Initiative Interactions

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We explore the role of timing in situations where a human user and semi-autonomous software can each initiate actions, building on cognitive theories of rhythmic expectation and mutual temporal adaptation during conversation. Two controlled experiments demonstrate that adjustments to the rhythm of back-and-forth interaction have significant effects on perceived agency, task performance and stress. Conclusions include design guidance that establishing a predictable rhythm of interaction is likely to be beneficial for mixed initiative systems.

This talk is part of the Engineering Design Centre Seminars series.

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