scholarly journals Now you see it, now you don’t: dynamism amplifies the typicality effect

2021 ◽  
Author(s):  
Richard Clewley ◽  
Jim Nixon
Keyword(s):  
Human Performance ◽  
Pilot Training ◽  
Aircraft Accidents ◽  
Airline Pilots ◽  
System Transition ◽  
Typical Event ◽  
Typicality Effect ◽  
Recognition And Response ◽  
Event Dynamics ◽  
Response Errors

AbstractSome safety events do not stabilise in a coherent state, presenting with transient or intermittent features. Such dynamism may pose problems for human performance, especially if combined with non-typical stimuli that are rarely encountered in everyday work. This may explain undesirable pilot behaviour and could be an important cognitive factor in recent aircraft accidents. Sixty-five airline pilots tested a real-world typicality gradient, composed of two cockpit events, a typical event, and a non-typical event, across two different forms of dynamism, a stable, single system transition, and an unstable, intermittent system transition. We found that non-typical event stimuli elicited a greater number of response errors and incurred an increased response latency when compared to typical event stimuli, replicating the typicality effect. These performance deteriorations were amplified when a form of unstable system dynamism was introduced. Typical stimuli were unaffected by dynamism. This indicates that dynamic, non-typical events are problematic for pilots and may lead to poor event recognition and response. Typical is advantageous, even if dynamic. Manufacturers and airlines should evolve pilot training and crew procedures to take account of variety in event dynamics.

scholarly journals Penguins, Birds, and Pilot Knowledge: Can an Overlooked Attribute of Human Cognition Explain Our Most Puzzling Aircraft Accidents?

2020 ◽  
pp. 001872082096087
Author(s):  
Richard Clewley ◽  
Jim Nixon
Keyword(s):  
Human Cognition ◽  
Pilot Training ◽  
Flight Safety ◽  
Aircraft Accidents ◽  
Event Knowledge ◽  
Flight Operations ◽  
Safety Event ◽  
Explicit Training ◽  
Pilot Behavior

Objective We extend the theory of conceptual categories to flight safety events, to understand variations in pilot event knowledge. Background Experienced, highly trained pilots sometimes fail to recognize events, resulting in procedures not being followed, damaging safety. Recognition is supported by typical, representative members of a concept. Variations in typicality (“gradients”) could explain variations in pilot knowledge, and hence recognition. The role of simulations and everyday flight operations in the acquisition of useful, flexible concepts is poorly understood. We illustrate uses of the theory in understanding the industry-wide problem of nontypical events. Method One hundred and eighteen airline pilots responded to scenario descriptions, rating them for typicality and indicating the source of their knowledge about each scenario. Results Significant variations in typicality in flight safety event concepts were found, along with key gradients that may influence pilot behavior. Some concepts were linked to knowledge gained in simulator encounters, while others were linked to real flight experience. Conclusion Explicit training of safety event concepts may be an important adjunct to what pilots may variably glean from simulator or operational flying experiences, and may result in more flexible recognition and improved response. Application Regulators, manufacturers, and training providers can apply these principles to develop new approaches to pilot training that better prepare pilots for event diversity.

scholarly journals The impact of cognitive fatigue on airline pilots performance

2021 ◽  
Vol 11 (1) ◽  
pp. 16
Author(s):  
Nuno Quental ◽  
João Rocha ◽  
Jorge Silva ◽  
Lídia Menezes ◽  
Jorge Santos
Keyword(s):  
Human Error ◽  
Human Performance ◽  
Vigilance Task ◽  
Sleep Diary ◽  
Cognitive Fatigue ◽  
Airline Pilots ◽  
Fatigue Score ◽  
Fatigue Management ◽  
Psychomotor Vigilance ◽  
The Impact

Purpose: Air transport is a highly regulated branch of aviation, but it continues to show occurrences where human error is present. Fatigue is now recognized as a hazard which degrades human performance and can put flight safety at risk. In this regard, the general objective of this study is to assess the impact of cognitive fatigue on airline pilots and how it can contribute to the occurrence of accidents and incidents.Methodology: Three airline pilots participated in the case study. The participants’ cognitive fatigue was monitored according to four methods, being two of them of a subjective nature – the sleep diary (SD) and the Samn-Perelli 7-Point Fatigue Scale (SPS), and the other two of an objective nature – the Psychomotor Vigilance Task (PVT) and the actigraphy (actiwatch ReadibandTM 5). During their flight duty periods (FDPs), the pilots’ performance was also assessed according to the score delivered by a fatigue management software (FAID®).Findings: The obtained results allowed to understand whether the pilots are aware of their alertness and to identify factors which affect their performance levels. Between the beginning and the end of each FDP, significant changes were observed concerning the assessment on the SPS scale, the reaction time (RT) and the fatigue score generated by the biomathematical models associated to the technique of the actigraphy and the software FAID®.Originality/value: The risk of accident or serious error was classified according to the four methodologies used. Thus, it is possible to verify if there is a correspondence between the different scales or if there are scales more conservative (with a higher associated risk) than others.

Structural Redesign of Pilot Training and the Automated Aircraft

2017 ◽  
Vol 4 (2) ◽  
pp. 32-44
Author(s):  
Karlene Petitt
Keyword(s):  
Situation Awareness ◽  
Cognitive Load Theory ◽  
Pilot Training ◽  
Aircraft Accidents ◽  
Computer Based Training ◽  
Load Theory ◽  
Flight Simulators ◽  
International Environment ◽  
Structural Redesign ◽  
Computer Based

Flight skill loss due to the overuse of automation has become an industry concern. Aircraft accidents have been attributed to pilots' inability to manage their aircraft in manual flight resulting from unexpected changes in automation and loss of situation awareness. While aviation experts have associated these accidents to diminished stick and rudder skills from the overuse of automation, the problem may be attributed to how pilots are trained in automated aircraft. The FAA has encouraged pilots to manually fly to improve skills; however, limited opportunities for manual flight exist in the current international environment, with potentially less opportunities in the future due to NextGen compliance. A critical view of pilot training identifies how airlines could train pilots in modern day aircraft to maximize safety. The benefit of computer-based training to teach operating procedures, fixed based simulators versus level D full flight simulators, redesigning training programs to improve pilots' understanding through cognitive load theory, and the power of repetition will be addressed.

Structural Redesign of Pilot Training and the Automated Aircraft

2021 ◽  
pp. 933-947
Author(s):  
Karlene Petitt
Keyword(s):  
Situation Awareness ◽  
Training Programs ◽  
Pilot Training ◽  
Aircraft Accidents ◽  
Critical View ◽  
Computer Based Training ◽  
Flight Simulators ◽  
International Environment ◽  
Structural Redesign ◽  
Computer Based

Flight skill loss due to the overuse of automation has become an industry concern. Aircraft accidents have been attributed to pilots' inability to manage their aircraft in manual flight resulting from unexpected changes in automation and loss of situation awareness. While aviation experts have associated these accidents to diminished stick and rudder skills from the overuse of automation, the problem may be attributed to how pilots are trained in automated aircraft. The FAA has encouraged pilots to manually fly to improve skills; however, limited opportunities for manual flight exist in the current international environment, with potentially less opportunities in the future due to NextGen compliance. A critical view of pilot training identifies how airlines could train pilots in modern day aircraft to maximize safety. The benefit of computer-based training to teach operating procedures, fixed based simulators versus level D full flight simulators, redesigning training programs to improve pilots' understanding through cognitive load theory, and the power of repetition will be addressed.

scholarly journals NEAR-INFRARED SPECTROSCOPY IN HEALTHY SUBJECTS: POSSIBLE APPLICATION IN AVIATION AND AVIATION MEDICINE

2020 ◽  
Vol 25 (2) ◽  
pp. 24-37
Author(s):  
Aleksandra Dopierała ◽  
◽  
Anna Przewodzka ◽  
Przemysław Tomalski ◽  
◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Human Performance ◽  
Near Infrared ◽  
Blood Oxygenation ◽  
Pilot Training ◽  
Functional Near Infrared Spectroscopy ◽  
Aviation Medicine ◽  
Non Invasive ◽  
Military Pilots

Abstract: Functional near-infrared spectroscopy (fNIRS) is a non-invasive optical brain monitoring technology for mapping the functioning of the human cortex in response to sensory or motor activation. There is a growing interest in implementing fNIRS to monitor the cognitive performance of military pilots. The method relies on differences in hemoglobin absorption spectra depending on blood oxygenation. However, this method was relatively rarely utilized in aviation and aviation medicine. Therefore, we will provide a broad review of applying this method in various avenues of medicine and cognitive psychology, as well as cover its documented use in aviation and aviation medicine. In this review, we cover the following topics: 1) fNIRS in comparison to most commonly used neuroimaging methods, 2) fNIRS in the evaluation of human performance, 3) fNIRS application in aviation and aviation medicine, and 4) fNIRS-based Brain-Computer-Interface (BCI) to overcome cognitive restrictions and for optimizing pilot training. In conclusion, over the years, fNIRS has become a neuroimaging technique that contributes to making advances toward understanding the functioning of the human brain.

Effects of “Task-Related Stress” on Human Performance on a Two-Component Monitoring Task

1969 ◽  
Vol 29 (3) ◽  
pp. 815-823 ◽  
Author(s):  
Paul D. Jacobs ◽  
Roger E. Kirk
Keyword(s):  
Reaction Time ◽  
Human Performance ◽  
Monitoring Task ◽  
Cumulative Response ◽  
Stress Task ◽  
Two Component ◽  
Response To Stress ◽  
Related Stress ◽  
Stress Dependent ◽  
Response Errors

Male and female Ss performed a two-component monitoring task under 3 conditions of stress, No-stress, Task-related Stress, and Task-unrelated Stress. Dependent variables were reaction time, cumulative responses, and cumulative response errors. The results indicated faster reaction time under conditions of Task-related Stress than during the other two conditions. Differences in cumulative responses and cumulative response errors also occurred over monitoring periods, suggesting improved vigilance with practice. The results were interpreted as indicative of a “protective-adaptive” response to stress, during which S protects himself by adapting within his response repertoire to stressors.

Flight Deck Automation

2013 ◽  
Vol 21 (3) ◽  
pp. 22-26 ◽  
Author(s):  
Eric E. Geiselman ◽  
Christopher M. Johnson ◽  
David R. Buck
Keyword(s):  
Human Performance ◽  
Partial Solution ◽  
Human Machine Interface ◽  
Context Aware ◽  
Subsequent Issue ◽  
Airline Pilots ◽  
Design Philosophy ◽  
Machine Interface ◽  
Flight Deck ◽  
Interface Designs

We respond to claims that airline pilots may be losing their ability to manually control aircraft because overreliance on automation is eroding basic manual flying skills. We propose that better training is only a partial solution and that automation can be designed to better support human performance. We do not simply advocate more automation; rather, we envision a more context-aware automation design philosophy that promotes a more communicative and collaborative human-machine interface. Examples are used to illustrate the benefits of this approach. A companion piece to this article, which includes proposed mitigation interface designs, will be available in a subsequent issue of Ergonomics in Design.

The limits of human performance

2008 ◽  
Vol 44 ◽  
pp. 11-26 ◽  
Author(s):  
Ralph Beneke ◽  
Dieter Böning
Keyword(s):  
Human Performance ◽  
Safety Margin ◽  
Afferent Input ◽  
Metabolic Energy ◽  
Human Organism ◽  
Mechanical Resistance ◽  
As Doping ◽  
Gene And Protein Expression ◽  
Underlying Mechanisms ◽  
Biochemical Research

Human performance, defined by mechanical resistance and distance per time, includes human, task and environmental factors, all interrelated. It requires metabolic energy provided by anaerobic and aerobic metabolic energy sources. These sources have specific limitations in the capacity and rate to provide re-phosphorylation energy, which determines individual ratios of aerobic and anaerobic metabolic power and their sustainability. In healthy athletes, limits to provide and utilize metabolic energy are multifactorial, carefully matched and include a safety margin imposed in order to protect the integrity of the human organism under maximal effort. Perception of afferent input associated with effort leads to conscious or unconscious decisions to modulate or terminate performance; however, the underlying mechanisms of cerebral control are not fully understood. The idea to move borders of performance with the help of biochemicals is two millennia old. Biochemical findings resulted in highly effective substances widely used to increase performance in daily life, during preparation for sport events and during competition, but many of them must be considered as doping and therefore illegal. Supplements and food have ergogenic potential; however, numerous concepts are controversially discussed with respect to legality and particularly evidence in terms of usefulness and risks. The effect of evidence-based nutritional strategies on adaptations in terms of gene and protein expression that occur in skeletal muscle during and after exercise training sessions is widely unknown. Biochemical research is essential for better understanding of the basic mechanisms causing fatigue and the regulation of the dynamic adaptation to physical and mental training.

1880: Assessment of Basic Human Performance Resources Predicts Performance of Ureterorenoscopy in Human Cadavers

2004 ◽  
Vol 171 (4S) ◽  
pp. 496-497
Author(s):  
Edward D. Matsumoto ◽  
George V. Kondraske ◽  
Lucas Jacomides ◽  
Kenneth Ogan ◽  
Margaret S. Pearle ◽  
...  
Keyword(s):  
Human Performance ◽  
Human Cadavers

Short Stress State Questionnaire

2015 ◽  
Vol 31 (1) ◽  
pp. 20-30 ◽  
Author(s):  
William S. Helton ◽  
Katharina Näswall
Keyword(s):  
Stress State ◽  
Factor Structure ◽  
Human Performance ◽  
Self Report ◽  
Confirmatory Factor ◽  
Stress States ◽  
Related Stress ◽  
Using Data ◽  
Task Conditions ◽  
Multiple Samples

Conscious appraisals of stress, or stress states, are an important aspect of human performance. This article presents evidence supporting the validity and measurement characteristics of a short multidimensional self-report measure of stress state, the Short Stress State Questionnaire (SSSQ; Helton, 2004 ). The SSSQ measures task engagement, distress, and worry. A confirmatory factor analysis of the SSSQ using data pooled from multiple samples suggests the SSSQ does have a three factor structure and post-task changes are not due to changes in factor structure, but to mean level changes (state changes). In addition, the SSSQ demonstrates sensitivity to task stressors in line with hypotheses. Different task conditions elicited unique patterns of stress state on the three factors of the SSSQ in line with prior predictions. The 24-item SSSQ is a valid measure of stress state which may be useful to researchers interested in conscious appraisals of task-related stress.

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