Effect of Instructional Set on End Spurt Phenomenon

Dannhaus, Dale M.; Hopson, Julie A.; Halcomb, Charles G.

doi:10.2466/pms.1976.43.3.786

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…The end-spurt effect is a phenomenon that has been reported in some vigilance studies (e.g., Bergum & Klein, 1961;Childs & Halcomb, 1972;De Joux et al, 2013). Researchers have commonly associated this increase in performance with increases in motivation or arousal with knowledge or anticipation of completing the vigil, resulting in increased cognitive resources (Dannhaus et al, 1976).…”

Section: Discussionmentioning

confidence: 97%

“…The end-spurt effect results in a boost of performance toward the end of a vigil, usually resulting in a decreasing, quadratic trend in vigilance performance. Research suggests the surge in performance is due to knowledge or anticipation of the end of the vigil (Bergum & Lehr, 1963;Catalano, 1973;Dannhaus, Hopson, & Halcomb, 1976). Researchers posit there is an increase in motivation or arousal as individuals approach the end of the task, producing additional resources allowing for increased performance (Dannhaus et al, 1976).…”

mentioning

confidence: 99%

“…Research suggests the surge in performance is due to knowledge or anticipation of the end of the vigil (Bergum & Lehr, 1963;Catalano, 1973;Dannhaus, Hopson, & Halcomb, 1976). Researchers posit there is an increase in motivation or arousal as individuals approach the end of the task, producing additional resources allowing for increased performance (Dannhaus et al, 1976). However, there is another possible explanation.…”

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confidence: 99%

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Beyond the Vigilance End-Spurt with Event-Related Potentials

Morris

Haubert

Gunzelmann

2020

Proceedings of the Human Factors and Ergonomics Society Annual

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As task environments become more automated and operators become more passive monitors, it is important to understand the underlying mechanisms of the vigilance decrement to help inform task development and interventions. Some vigilance studies have reported an end-spurt effect, where performance increases at the end of the task. This is commonly purported to be the result of increased resources from motivation or arousal; however, self-regulation of attentional resources throughout the vigil has not been addressed. To provide insight into the mechanisms underlying the vigilance decrement, we utilize event-related potentials to examine the vigilance decrement beyond the end-spurt. Thirty-two individuals aged 18 – 36 ( M = 22.60; SD = 4.08) completed a vigilance task with an unknown end time while EEG data was collected. Results revealed non-monotonic trends in N1 and P3 components, suggesting that individuals might self-regulate resources during the vigil, adapting to the constraints of the task environment.

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Section: Discussionmentioning

confidence: 97%

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confidence: 99%

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confidence: 99%

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Beyond the Vigilance End-Spurt with Event-Related Potentials

Morris

Haubert

Gunzelmann

2020

Proceedings of the Human Factors and Ergonomics Society Annual

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Vigilance end-spurt patterns in event-related potentials

et al. 2023

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Processing Demands, Training, and the Vigilance Decrement

Williams¹

1986

Hum Factors

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Two possible sources of vigilance decrement are inadequate training of operators and taxing information-processing demands. This study attempted to compensate for both of these sources. Although compensation for training was effective, processing demands may have been set too high, as detection sensitivity declined. This result suggests that an event rate much less than the current threshold of 24/min is necessary to stabilize sensitivity. Response latency increased progressively during the task and was greater for "unsure" as compared with "sure" decisions. Consistent with an adaptation-level hypothesis, reduced sensitivity was compensated by a general negative shift in response bias. This adaptive process may account for the absence in this study of the usual fonn of vigilance decrement: a positive shift in bias, which reduces both detection and false-alann scores.

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Effect of Instructional Set on End Spurt Phenomenon

Cited by 4 publications

References 5 publications

Beyond the Vigilance End-Spurt with Event-Related Potentials

Beyond the Vigilance End-Spurt with Event-Related Potentials

Vigilance end-spurt patterns in event-related potentials

Processing Demands, Training, and the Vigilance Decrement

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