Workload Is Multidimensional, Not Unitary: What Now? Gerald Matthews

Keywords

Electrocardiogram (ECG); Electroencephalogram (EEG); Individual Differences; Performance; Psychophysiology; Stress; Task demands; Workload

Abstract

It is commonly assumed that workload is a unitary construct, but recent data suggest that there are multiple subjective and objective facets of workload that are only weakly intercorrelated. This article reviews the implications of treating workload as multivariate. Examples from several simulated task environments show that high subjective workload is compatible with a variety of patterns of multivariate psychophysiological response. Better understanding of the cognitive neuroscience of the different components of workload, including stress components, is required. At a practical level, neither subjective workload measures nor single physiological responses are adequate for evaluating task demands, building predictive models of human performance, and driving augmented cognition applications. Multivariate algorithms that accommodate the variability of cognitive and affective responses to demanding tasks are needed.

Publication Date

1-1-2015

Publication Title

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Volume

9183

Number of Pages

44-55

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1007/978-3-319-20816-9_5

Socpus ID

84947275908 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84947275908

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