scholarly journals Human Performance Risks and Benefits of Adaptive Systems on the Flight Deck

2016 ◽  
Vol 26 (1-2) ◽  
pp. 15-35 ◽  
Author(s):  
Michael C. Dorneich ◽  
William Rogers ◽  
Stephen D. Whitlow ◽  
Robert DeMers
Author(s):  
Michael C. Dorneich ◽  
William Rogers ◽  
Stephen D. Whitlow ◽  
Robert DeMers

Author(s):  
Michael C. Dorneich ◽  
William Rogers ◽  
Stephen D. Whitlow ◽  
Robert DeMers

Author(s):  
Sang-Hwan Kim ◽  
David B. Kaber ◽  
Carlene M. Perry

The objective of this study was to assess the use of a computational cognitive model for describing human performance with an adaptively automated system, with and without advance cueing of control mode transitions. A dual-task piloting simulation was developed to collect human performance data under auditory cueing or no cueing of automated or manual control. GOMSL models for simulating user behavior were constructed based on a theory of increased memory transactions at mode transitions. The models were applied to the same task simulation and scenarios performed by the humans. Comparison of results on human and model output demonstrated the model to be generally descriptive of performance; however, it was not accurate in predicting timing of memory use in preparing for manual control. Interestingly, the human data didn't reveal differences between cued and no cue trials. A refined GOMSL model was developed by modifying assumptions on the timing and manner of memory use, and considering human parallel processing in dual-task performance. Results revealed the refined model to be more plausible for representing behavior. Computational cognitive modeling appears to be a viable approach to represent operator performance in adaptive systems.


Author(s):  
Sarah Munro ◽  
Jude Kornelsen ◽  
Elizabeth Wilcox ◽  
Sarah Kaufman ◽  
Nick Bansback ◽  
...  

Background:Despite the suggested benefits of shared decision-making (SDM), its implementation in policy and practice has been slow and inconsistent. Use of complex adaptive systems (CAS) theory may provide understanding of how healthcare system factors influence implementation of SDM. Methods:Using the example of choice of mode of birth after a previous caesarean section, in-depth, semi-structured interviews were conducted with patients, providers, and decision makers in British Columbia, Canada, to explore the system characteristics and processes that influence implementation of SDM. Implementation and knowledge translation principles guided study design, and constructionist grounded theory informed iterative data collection and analysis. Findings:Analysis of interviews (n=58) revealed that patients formed early preferences for mode of delivery (after the primary caesarean) through careful deliberation of social risks and benefits. Physicians acted as information providers of clinical risks and benefits, while decision makers revealed concerns related to liability and patient safety. These concerns stemmed from perceptions of limited access to surgical resources, which had resulted from budget constraints. Discussion and conclusions:To facilitate the effective implementation of SDM in policy and practice it may be critical to initiate SDM once patients become aware of their healthcare options, assist patients to address the social risks that influence their preferences, manage perceptions of risk related to patient safety and litigation among physicians, and enhance access to healthcare resources.


Aviation ◽  
2016 ◽  
Vol 20 (2) ◽  
pp. 65-84 ◽  
Author(s):  
Ana P. G. MARTINS

Even considering the current low accident rate in aviation, the anticipated growth in the number of airplanes in the air in the next decades will lead to an inadmissible rise in the number of accidents. These have been mostly attributed to human error and a misunderstanding of automation by the crew, especially during periods of high workload and stress in the cockpit. Therefore, increased safety requires not only advances in technology, but improved cockpit design including better human-machine interface. These cannot be achieved however, without considering some of the cognitive constructs that affect the behaviour of pilots in the cockpit. In fact, given its characteristics and public visibility, the flight deck of commercial jets is one of the most common arenas for the study of complex and skilled human performance. Here I present a literature review on the selected topics of workload, situation awareness, stress and automation in the cockpit, with the goal of supporting the development of new technologies.


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