Normal Range


What it means

Your Fatigue score reflects how quickly your brain tires during a mentally demanding task.

What it tests

Integrity of white matter and the frontal-parietal pathways.

Why it's important

Poor Fatigue scores have been correlated with sleep deprivation, concussion, and mTBI.

Tests used to compute your score

Simple Reaction Time

Blog articles about Fatigue

The Speed Measure

The Need for Speed

Concussion Symptoms