Feedback design for the control of a dynamic multitasking system: Dissociating outcome feedback from control feedback

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Description: Objective: We distinguish outcome feedback from control feedback to show that suboptimal performance in a dynamic multitasking system may be caused by limits inherent to the information provided rather than human resource limits. Background: Tardast is a paradigm for investigating human multitasking behavior, complex system management, and supervisory control. Prior research attributed the suboptimal performance of Tardast operators to poor strategic task management. Methods: We varied the nature of performance feedback in the Tardast paradigm to compare continuous, cumulative feedback (global feedback) on performance outcome with feedback limited to the most recent system state (local feedback). Results: Participants in both conditions improved with practice, but those with local feedback performed better than those with global feedback. An eye gaze analysis showed increased visual attention directed toward the feedback display in the local feedback condition. Conclusion: Predicting performance in the control of a dynamic multitasking system requires understanding the interactions between embodied cognition, the task being performed, and characteristics of performance feedback. In the current case, at least part of what had been diagnosed as a deficit caused by limited cognitive resources has been shown to be data limited. Application: Perfect outcome feedback can provide inadequate control feedback. Instances of suboptimal performance can be alleviated by better feedback design that takes into account the temporal dynamics of the human-system interaction.

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The code provided in this OSF project is also relevant for the conference paper: Neth, H., Khemlani, S. S., Oppermann, B, & Gray, W. D. (2006). Juggling multiple tasks: A rational analysis of multitasking in a synthetic task environment. In: Proceedings of the 50th annual meeting of the Human Factors and Ergonomics Society. San Francisco, CA, October 16-20, 2006. To execute the code, evaluate "+...

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