Time-Tapping Task
Description
Motor timing task measuring self-paced tapping consistency across multiple trials
Measures: Motor timing consistency, rhythm maintenance, psychomotor speed, sustained motor control
Motor Function Timing Psychomotor Speed
About This Test
Participants tap at a self-paced even rate following a visual entrainment period. After seeing a flashing cross that demonstrates the target tapping rate, participants must maintain that rhythm for a sustained period (default 180 seconds per trial). The task assesses low-level motor timing ability and may be sensitive to fatigue, sleep deprivation, and motor control deficits.
- Ensure participants understand they should maintain a steady rhythm throughout each trial, not just tap as fast as possible. The entrainment period helps establish the target rhythm before the test phase begins.
- Consistency is measured by variability in inter-tap intervals. Lower variability indicates better motor timing control. Compare actual intervals to target intervals to assess accuracy.
- Poor performance (high variability or deviation from target) may indicate fatigue, sleep deprivation, motor control deficits, or medication effects. Performance typically degrades with longer trial durations.
- Sensitive to fatigue states, sleep deprivation, medication effects, and motor disorders. Part of UTC-PAB used for operational readiness assessment.
Test Details
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Scientific Background
Original Task References:
These references describe the original task that this PEBL implementation is based on.
- Mueller, S. T., & Piper, B. J. (2014). The Psychology Experiment Building Language (PEBL) and PEBL Test Battery. Journal of Neuroscience Methods, 222, 250-259.
Validation status: Part of UTC-PAB (Unified Tri-Services Cognitive Performance Assessment Battery), Test 19
Known Issues
- Timing precision in browsers is ~16ms (acceptable for this task which measures consistency over hundreds of milliseconds)
- Visual timer updates every 500ms to minimize overhead