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Updated: Jun 25, 2026

The Rodent Psychomotor Vigilance Test (rPVT): A Method for Assessing Neurobehavioral Performance in Rats and Mice
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The vigilance decrement: its first 75 years.

Raymond M Klein1, Brett B T Feltmate1

  • 1Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada.

Frontiers in Cognition
|June 24, 2026
PubMed
Summary
This summary is machine-generated.

Vigilance decrement, a decline in detecting targets over time, impacts critical fields like aviation and medicine. Research explores its causes, including attention shifts and response criteria, to improve safety and performance.

Keywords:
criterionsensitivitysignal detection theorysustained attentionwatch keeping

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Area of Science:

  • Cognitive Psychology
  • Human Factors
  • Applied Psychology

Background:

  • Mackworth's 1948 studies first identified vigilance decrement, a decline in target detection probability with increased task duration.
  • Failures in sustained attention, termed vigilance decrement, have significant real-world implications in areas such as road safety, radiology, and air-traffic control.

Purpose of the Study:

  • To provide a comprehensive historical review of the scientific literature on the vigilance decrement.
  • To explore the nature of the vigilance decrement, with a focus on signal detection theory interpretations.

Main Methods:

  • Historical literature review of approximately 75 years of vigilance research.
  • Analysis of studies employing signal detection theory to interpret vigilance decrement.

Main Results:

  • Vigilance decrement can be attributed to decreased observer sensitivity, a conservative shift in response criteria, or both.
  • Early research suggested event presentation rate influences whether sensitivity or criterion shifts dominate.
  • Recent challenges question the role of sensitivity declines, citing low false-alarm rates and potential attentional lapses.

Conclusions:

  • Understanding the vigilance decrement is crucial for improving performance in safety-critical domains.
  • Further research is needed to fully elucidate the mechanisms underlying vigilance decrement and develop effective countermeasures.
  • Recommendations for mitigating vigilance decrement are offered based on the reviewed literature.