Abstract
The effect of task switching on performance has been examined in many different fields and contexts. Sudden changes in task load can significantly impair performance, which can have detrimental consequences in dismounted military operations. As technology is advancing, robots are sought to take on the role of a teammate to the human soldier in the field. Robot-to-human communication modality may need to switch when mayhem occurs in military missions. Modality switching has been associated with performance decrements, although these effects are largely unknown in military human-robot teaming situations. The present study examined the cost associated with switching task demand and robot-to-human communication modality type on performance in a simulated cordon-and-search mission. The results showed that switches in task load affected threat detection performance. Auditory reporting increased performance more than visual reporting in low-after-high task load epochs. Performance with auditory reports was also higher in high-after-low demand blocks than low-after-high. The effect of switching needs to be taken into account for high-stakes human-robot interactions.
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More From: Proceedings of the Human Factors and Ergonomics Society Annual Meeting
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