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Jeffrey G. Morrison

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Publications by Jeffrey G. Morrison (bibliography)

2004

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John, Mark St., Kobus, David A., Morrison, Jeffrey G. and Schmorrow, Dylan (2004): Overview of the DARPA Augmented Cognition Technical Integration Experiment. In International Journal of Human-Computer Interaction, 17 (2) pp. 131-149.

“The Defense Advance Research Projects Agency Augmented Cognition program is developing innovative technologies that will transform human-computer interactions by making information systems adapt to the changing capabilities and limitations of the user. The first phase of the Augmented Cognition program was to empirically assess the ability of various psychophysiological measures to identify changes in human cognitive activity during task performance in real time. This overview describes the empirical results of a Technical Integration Experiment involving the evaluation of 20 psychophysiological measures from 11 different research groups, including functional Near Infrared imaging, continuous and event-related electrical encephalography, pupil dilation, mouse pressure, body posture, heart rate, and galvanic skin response. These "cognitive state gauges" were evaluated on a common, quasi-realistic, military command and control task called the Warship Commander Task. Participants monitored aircraft on a geographical display for their levels of threat and responded to the threatening ones, as they simultaneously monitored ship communications for ship status information. The task involves a combination of perceptual, motor, spatial, auditory, verbal, memory, and decision-making processing. Task load was manipulated by changing the quantity and types of aircraft appearing throughout the primary task and by varying the presence or absence of the secondary verbal-memory task. Eleven of the gauges significantly identified changes in cognitive activity during the task. This overview summarizes the results and examines the prospects for the successful transition of these cognitive state gauges to operational military human-machine systems.”

1994

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Morrison, Jeffrey G., Forster, Estrella, Hitchcock, Edward M., Barba, Charles A., Santarelli, Thomas P. and Scerbo, Mark W. (1994): Cumulative Effects of +Gz on Cognitive Performance. In: Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting 1994. pp. 46-50.

“A study is described which examines the interaction of two of the most salient stressors found in the tactical aviation cockpit: 1) highly demanding decision-making tasks, and 2) intermittent periods of high G. Addressing this issue is critical because: 1) it is probable that physiological stressors such as G may have serious ramifications on pilots' abilities to perform complex cognitive tasks; 2) there may be different impacts of G on different types of cognitive tasks, and the impact of these deficits may be correlated with the cumulative amount of time a pilot has spent under G.; 3) it is not clear that donning protective gear will have an effect on cognitive task performance; and 4) there are no data to suggest how long cognitive decrements due to exposure to physiological stressors will last. A general approach is described for evaluating the cumulative effects of physiological stressors (e.g., G) on cognitive task performance in a within-subjects experimental design. A PC-based task suite was used incorporating three concurrently performed tasks: a compensatory tracking task, a resource management task, and a system monitoring task. Results indicated that performance across the experimental conditions was highly variable. Preliminary results demonstrated that: 1) even low-level increases in G can be disruptive to subject performance, 2) there are cumulative decrements in task performance during G, and 3) if stable performance on tasks is required, training for complex task performance must take place in the presence of salient physiological stressors.”

1991

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Gluckman, Jonathan P., Morrison, Jeffrey G. and Deaton, John E. (1991): Complex Task Performance as a Basis for Developing Cognitive Engineering Guidelines in Adaptive Automation. In: Proceedings of the Human Factors Society 35th Annual Meeting 1991. pp. 116-120.

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