Honeywell has designed a joint humancomputer cognitive system to support rapid decision making demands of dismounted soldiers. In highly networked environments the sheer magnitude of communication amid multiple tasks could overwhelm individual soldiers. Key cognitive bottlenecks constrain information flow and the performance of decision-making, especially under stress. The adaptive decision-support system mitigates non-optimal human performance via automation when the system detects a breakdown in the human's cognitive state. The human's cognitive state is assessed in real-time via a suite of neuro-physiological and physiological sensors. Adaptive mitigation strategies can include task management, optimizing information presentation via modality management, task sharing, and task loading. Mitigations are designed with consideration for both the costs and benefits of intermittent augmentation The paper describes the system development and evolution, explorations of usable cognitive mitigation strategies, and four evaluations that show adaptive automaton can effectively, mitigate human decision-making performance at extremes (overload and underload) of workload.
This paper describes the development and evaluation of an Intelligent Team Tutoring System (ITTS) for pairs of learners working collaboratively to monitor an area. In the Surveillance Team Tutor (STT), learners performed a surveillance task in a virtual environment, communicating to track hostile moving soldiers. This collaborative problem solving task required significant communication to achieve the common goal of perfect surveillance. In a pilot evaluation, 16 twoperson teams performed the task within one of three feedback conditions (Individual, Team, or None) across four trials each. The STT used a unique approach to filtering feedback so that teams in both individual and team conditions received a similar amount of feedback. In one performance measure, Team condition participants made fewer errors in one task than those in other conditions, though at a potential cost of mental workload. Feedback condition also significantly affected participants' subjective rating of both their own performance and their teammate's. This ITTS is one of the first automated team tutoring systems that provided real-time feedback during task execution. Recommendations are offered for the design of the optimal team task for future ITTSs that offer tutoring for small teams performing collaborative problem solving.
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