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5 results on '"Human task performance"'

1. Effects of different real-time feedback types on human performance in high-demanding work conditions.

Author

Cohen, Iris, Brinkman, Willem-Paul, and Neerincx, Mark A.

Subjects
*PERFORMANCE technology, *STRESS management, *PROFESSIONAL employee training, *TASK performance, *PREDICTION models, *TIME pressure, *PSYCHOLOGICAL feedback
Abstract

Experiencing stress during training is a way to prepare professionals for real-life crises. With the help of feedback tools, professionals can train to recognize and overcome negative effects of stress on task performances. This paper reports two studies that empirically examined the effect of such a feedback system. The system, based on the COgnitive Performance and Error (COPE) model, provides its users with physiological, predicted performance and predicted error-chance feedback. The first experiment focussed on creating stressful scenarios and establishing the parameters for the predictive models for the feedback system. Participants ( n =9) performed fire-extinguishing tasks on a virtual ship. By altering time pressure, information uncertainty and consequences of performance, stress was induced. COPE variables were measured and models were established that predicted performance and the chances on specific errors. In the second experiment a new group of participants ( n =29) carried out the same tasks while receiving eight different combinations of the three feedback types in a counterbalanced order. Performance scores improved when feedback was provided during the task. The number of errors made did not decrease. The usability score for the system with physiological feedback was significantly higher than a system without physiological feedback, unless combined with error feedback. This paper shows effects of feedback on performances and usability. To improve the effectiveness of the feedback system it is suggested to provide more in-depth tutorial sessions. Design changes are recommended that would make the feedback system more effective in improving performances. [ABSTRACT FROM AUTHOR]

Published
2016
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2. The Effects of Task Interruption on Human Performance: A Study of the Systematic Classification of Human Behavior and Interruption Frequency.

Author

Lee, Byung Cheol and Duffy, Vincent G.

Subjects
INTERRUPTION (Psychology), WORK environment, HUMAN behavior, TASK performance, PERFORMANCE anxiety, COGNITIVE ability
Abstract

Interruptions are prevalent phenomena in modern working environments; yet, few interruption studies have been conducted on different types of human tasks. A study using computer-based human behavior tasks was carried out to investigate the effects of interruptions with 4 different primary-interrupting task sets. The tasks used in this study were determined by cognitive and motor skill processes based on human behavior classification theory. The results showed that interruption effects were most negative in cognitive/cognitive task sets, and skill/cognitive task sets showed the least amount of effects in task completion time, F(3, 332) = 77.88, p < .001. In error rate performance, skill/skill task sets showed the highest rate, and error rates for cognitive primary task sets (cognitive/cognitive and cognitive/skill task sets) were not significantly different, F(1, 42) = 41.18, p < .001; F(1, 42) = 3.56, p = 0.0661. Interruption frequency also negatively affected task performance, F(1, 412) = 89.88, p < .001, but skill tasks' quantitative performance did not show significant effects at different interruption frequencies, F(1, 187) = 3.78, p = .0534. The results showed that interruptions increase more time to complete in cognitive tasks and produce more errors in skill tasks. Also, similar types of primary-interrupting tasks were more susceptible from interruptions. Thus, based on task composition of work process, we can estimate different effects from the interruptions and memory load, and task similarity in primary-interrupting task relationship were considered a main factor. [ABSTRACT FROM AUTHOR]

Published
2015
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3. Effects of different real-time feedback types on human performance in high-demanding work conditions

Author

Willem-Paul Brinkman, Mark A. Neerincx, and Iris Cohen

Subjects
PCS - Perceptual and Cognitive Systems, Cognitive error, Physiology, Human task performance, Computer science, Errors, Human Factors and Ergonomics, Virtual reality, Stress, 050105 experimental psychology, Education, Task (project management), Virtual training, Cognitive errors, Stress (linguistics), Stresses, Human & Operational Modelling, 0501 psychology and cognitive sciences, Fire-extinguishing, Effects of sleep deprivation on cognitive performance, Cognitive performance, Decision tool, Engineering(all), 050107 human factors, Simulation, Predicted performance, business.industry, 05 social sciences, Work (physics), General Engineering, Usability, Physiological models, Human-Computer Interaction, Psychophysiology, Hardware and Architecture, Human tasks, Fire extinguishers, Improving performance, ELSS - Earth, Life and Social Sciences, business, Decision tools, Software
Abstract

Experiencing stress during training is a way to prepare professionals for real-life crises. With the help of feedback tools, professionals can train to recognize and overcome negative effects of stress on task performances. This paper reports two studies that empirically examined the effect of such a feedback system. The system, based on the COgnitive Performance and Error (COPE) model, provides its users with physiological, predicted performance and predicted error-chance feedback. The first experiment focussed on creating stressful scenarios and establishing the parameters for the predictive models for the feedback system. Participants (n=9) performed fire-extinguishing tasks on a virtual ship. By altering time pressure, information uncertainty and consequences of performance, stress was induced. COPE variables were measured and models were established that predicted performance and the chances on specific errors. In the second experiment a new group of participants (n=29) carried out the same tasks while receiving eight different combinations of the three feedback types in a counterbalanced order. Performance scores improved when feedback was provided during the task. The number of errors made did not decrease. The usability score for the system with physiological feedback was significantly higher than a system without physiological feedback, unless combined with error feedback. This paper shows effects of feedback on performances and usability. To improve the effectiveness of the feedback system it is suggested to provide more in-depth tutorial sessions. Design changes are recommended that would make the feedback system more effective in improving performances. © 2016 The Authors. Published by Elsevier Ltd.

Published
2016

4. Effects of different real-time feedback types on human performance in high-demanding work conditions

Subjects
PCS - Perceptual and Cognitive Systems, Cognitive error, Human task performance, Physiology, Errors, ELSS - Earth, Stress, Physiological models, Virtual reality, Cognitive errors, Virtual training, Human tasks, Fire extinguishers, Improving performance, Stresses, Human & Operational Modelling, Fire-extinguishing, Life and Social Sciences, Cognitive performance, Decision tool, Decision tools, Psychophysiology, Predicted performance
Abstract

Experiencing stress during training is a way to prepare professionals for real-life crises. With the help of feedback tools, professionals can train to recognize and overcome negative effects of stress on task performances. This paper reports two studies that empirically examined the effect of such a feedback system. The system, based on the COgnitive Performance and Error (COPE) model, provides its users with physiological, predicted performance and predicted error-chance feedback. The first experiment focussed on creating stressful scenarios and establishing the parameters for the predictive models for the feedback system. Participants (n=9) performed fire-extinguishing tasks on a virtual ship. By altering time pressure, information uncertainty and consequences of performance, stress was induced. COPE variables were measured and models were established that predicted performance and the chances on specific errors. In the second experiment a new group of participants (n=29) carried out the same tasks while receiving eight different combinations of the three feedback types in a counterbalanced order. Performance scores improved when feedback was provided during the task. The number of errors made did not decrease. The usability score for the system with physiological feedback was significantly higher than a system without physiological feedback, unless combined with error feedback. This paper shows effects of feedback on performances and usability. To improve the effectiveness of the feedback system it is suggested to provide more in-depth tutorial sessions. Design changes are recommended that would make the feedback system more effective in improving performances. © 2016 The Authors. Published by Elsevier Ltd.

Published
2016

5. Effects of different real-time feedback types on human performance in high-demanding work conditions

Author

Cohen, I. (author), Brinkman, W.P. (author), Neerincx, M.A. (author), Cohen, I. (author), Brinkman, W.P. (author), and Neerincx, M.A. (author)

Abstract

Experiencing stress during training is a way to prepare professionals for real-life crises. With the help of feedback tools, professionals can train to recognize and overcome negative effects of stress on task performances. This paper reports two studies that empirically examined the effect of such a feedback system. The system, based on the COgnitive Performance and Error (COPE) model, provides its users with physiological, predicted performance and predicted error-chance feedback. The first experiment focussed on creating stressful scenarios and establishing the parameters for the predictive models for the feedback system. Participants (n=9) performed fire-extinguishing tasks on a virtual ship. By altering time pressure, information uncertainty and consequences of performance, stress was induced. COPE variables were measured and models were established that predicted performance and the chances on specific errors. In the second experiment a new group of participants (n=29) carried out the same tasks while receiving eight different combinations of the three feedback types in a counterbalanced order. Performance scores improved when feedback was provided during the task. The number of errors made did not decrease. The usability score for the system with physiological feedback was significantly higher than a system without physiological feedback, unless combined with error feedback. This paper shows effects of feedback on performances and usability. To improve the effectiveness of the feedback system it is suggested to provide more in-depth tutorial sessions. Design changes are recommended that would make the feedback system more effective in improving performances., Interactive Intelligence

Published
2016
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