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The Abbreviated Vigilance Task and Its Attentional Contributors
Curtis M Craig1, Martina I Klein2
1University of Minnesota, Minneapolis, USA.
Human Factors
|January 26, 2019
Summary
Executive attention does not significantly impact abbreviated vigilance tasks. However, orienting and alerting networks, task engagement, and ADHD symptoms influence performance, which changes over time.
Area of Science:
- Cognitive psychology
- Neuroscience
- Human factors research
Background:
- Vigilance research has a long history, with resource theory dominating explanations for performance decline.
- The precise mechanisms behind vigilance performance and decrement remain incompletely understood.
Purpose of the Study:
- To assess the role of attentional processes, specifically executive attention, in the abbreviated vigilance task.
- To investigate factors influencing performance and changes in these factors over time during vigilance tasks.
Main Methods:
- Participants completed attentional skill and stress questionnaires, the Attention Network Test, and two 12-min abbreviated vigilance tasks.
- Functional near-infrared imaging (fNIRI) measured changes in oxygenated hemoglobin.
- A break with image viewing was inserted between vigilance blocks.
Main Results:
- Vigilance performance declined within the first 2 minutes for both task iterations.
- Executive control manipulations did not affect vigilance performance.
- Orienting/alerting networks, task engagement, and ADHD symptoms correlated with performance.
- Key influencing factors differed between the first and second vigilance blocks.
Conclusions:
- Cognitive control appears to be a minor factor in the abbreviated vigilance task.
- Attentional mechanisms and stress states influencing vigilance performance evolve during the task.
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