Overnight call is a normal part of healthcare, but it creates a difficult measurement problem.

Clinicians may move directly from demanding overnight shifts into daytime responsibilities after interrupted sleep and sustained workload. In that environment, fatigue is not always obvious. One clinician may feel exhausted but continue functioning adequately, while another may report feeling fine despite measurable changes in attention or reaction time.

That is why fatigue in healthcare needs to be treated as an operational readiness issue rather than a personal failing. To study it effectively, research teams need tools that can measure cognitive performance close to real post-call periods without adding unnecessary burden to already busy clinicians.

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Project Objective

The objective of this project was to study the effects of creatine supplementation on cognitive performance during overnight physician call shifts. The research team needed a way to better understand how overnight call affects readiness in real clinical conditions.

The project used  NeuroUX’s Adaptive PVT to measure sustained attention and reaction time. Adaptive PVT is based on the brief PVT-B and adjusts based on participant responses, helping reduce burden while still capturing an objective signal of alertness.

EMA-style survey questions were included to collect participant-reported context around sleep, fatigue, workload, and other study-relevant variables. Together, these measures helped create a more complete picture of how overnight call related to cognitive readiness.

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PVT-Based Fatigue Monitoring Platform

We provided the NeuroUX Fatigue Monitoring Platform for this project. It is based on the Psychomotor Vigilance Test (PVT). 

The platform combines Adaptive PVT with contextual survey questions in a unified experience. Participants can complete assessments from their own devices in under 3 mins, helping minimize disruption during already demanding shifts.

This flexibility matters because physician call schedules vary significantly across participants and from week to week. Effective fatigue monitoring workflows need to support assessments around actual clinical schedules rather than forcing participants into rigid testing windows.

Beyond research use cases, our Fatigue Monitoring Platform can also support operational fatigue monitoring programs. The platform uses personalized baselines to evaluate readiness relative to an individual’s normal performance patterns rather than relying on one-size-fits-all thresholds. Depending on organizational policy, fatigue-related changes can support workflows such as retesting, supervisor review, rest opportunities, delayed starts, or temporary task modification.

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Supporting Healthcare Fatigue Research And Implementation

Healthcare teams need practical ways to measure fatigue in the conditions where it actually occurs.

For researchers, NeuroUX supports the collection of cognitive readiness data alongside participant-reported context around real clinical schedules. For healthcare organizations, the platform can support fatigue-risk visibility, readiness monitoring, and more consistent decision-making in safety-sensitive environments.

If you are studying fatigue, attention, or cognitive readiness in healthcare, NeuroUX can support research workflows that combine objective performance testing with real-world clinical context. The platform is designed for low-burden deployment across irregular schedules, helping teams collect more meaningful fatigue-related data where it matters most.

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Reach out to learn more about healthcare fatigue research and operational readiness workflows using our Fatigue Monitoring Platform.