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Chapter 11: Mental Workload, Stress and Individual Differences: Cognitive and Neuroergonomic Approaches Slide Template
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THE NEUROERGONOMIC APPROACH
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MENTAL WORKLOAD
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Workload Overload Relative/absolute workload Predictive models
Workload assessment
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Workload Overload
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Reserve Capacity Region
Relative predictions
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Measures of Mental Workload and Reserve Capacity
Behavioral measures Secondary tasks Subjective measures Purpose of workload assessment
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Neuroergonomics of Workload
Overview EEG Event-related potentials Ultrasound measures of cerebral blood flow Near infrared spectroscopy and cerebral oxygenation
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Neuroergonomics of Workload
Heart-rate variability Pupil diameter Visual scanning, entropy, and the “nearest neighbor index” Costs and benefits of physiological measures of workload
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Relationship between Workload Measures
Dissociation Effort and the number of tasks
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Consequences of Workload
Adaptation
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STRESS, PHYSIOLOGICAL AROUSAL, AND HUMAN PERFORMANCE
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The Yerkes Dodson Law
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Arousal Theory Transactional and Cognitive Appraisal Theories of Stress Stress Effects on Performance
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Stress Components Effects
Selective attention: Narrowing Selective attention :Distraction Working memory loss Preservation
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Stress Components Effects
Strategic control Recruitment of more resources Remove the stressor Change the goals of the task Do nothing
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Stress Remediation Environmental solutions Design solutions Training
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INDIVIDUAL DIFFERENCES
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Ability Differences in Multitasking
Differences in Working Memory Molecular Genetics and Individual Differences in Cognition Brain Computer Interfaces for Healthy and Disabled Individuals
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