Every time you complete a session in BrainyPlayLab, your performance feeds into a rich scoring system that goes far beyond a single number. Here’s a deep dive into what your Neural Synergy Score actually measures.
The Five Sub-Scores
- PSI — Processing Speed Index (reaction time × accuracy)
- WMI — Working Memory Index (span × decay resistance)
- ICI — Inhibitory Control Index (error suppression rate)
- CFI — Cognitive Flexibility Index (rule-switching efficiency)
- ATI — Attention Index (consistency and sustained focus)
The Composite Formula
The Neural Synergy composite uses a weighted harmonic mean rather than a simple average. A catastrophically low score in one domain pulls the composite down significantly — reflecting the reality that cognitive domains are interdependent.
Reading Your Trends
The most important number isn’t your current score — it’s your trend slope. A score of 65 trending up over 30 sessions is more meaningful than a static 80. Watch for consistent upward trends, plateaus (time to increase difficulty), and declining trends (potential fatigue or stress).