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🧭Benchmarks·Executive Function & Decision
Executive Function & Decision — Cognitive Performance Benchmarks
Benchmarks for mental set-shifting, decision latency, planning lookahead, and cognitive flexibility under Stroop interference and Trail Making protocols.
Your Personal Best
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Population Distribution
Age Group Benchmarks
| Age Group | Visual Relative Performance | Benchmark Score |
|---|---|---|
| 18–29 years | 25s | |
| 30–39 years | 29s | |
| 40–49 years | 32s | |
| 50–59 years | 38s | |
| 60+ years | 45s |
Data source: Der & Deary (2006), "Age and sex differences in reaction time in adulthood: Results from the UK Health and Lifestyle Survey."
Key Performance Factors
♟️
Forward PlanningThe Tower of London task requires look-ahead planning 2–3 moves deep. The branching factor grows exponentially with depth.
⚡
Processing SpeedDecision speed follows a drift-diffusion model: evidence accumulates to a threshold. Higher thresholds improve accuracy but slow decisions.
📋
Task SwitchingSwitching between tasks incurs a 100–300ms "switch cost." Frequent switching reduces throughput more than sustained single-tasking.
😴
Executive FatigueSleep deprivation reduces planning depth by ~1 move. Under fatigue, people default to urgent-but-low-importance tasks.
About These Benchmarks
Population distribution data is derived from CogniArena's aggregated user results for the primary test in this category. Age and professional benchmarks are sourced from published peer-reviewed research. Your percentile ranking shows how your score compares to all CogniArena users — a higher percentile means you outperformed more people. Benchmarks are updated regularly as new data is collected.