How fast does your brain respond? These tests measure raw reaction time, processing speed, and visual tracking ability.
Reaction Time
Measure your basic processing speed, alertness, and neural conduction latency.
F1 Reaction
Formula 1 lights-out start sequence. React the instant all five red lights go dark.
Processing Speed
Rapid symbol search task to evaluate how fast you process visual information.
Object Tracking
Track highlighted balls as they move among distractors. Measures attentional splitting ability.
Target Shooter
Targets appear, grow, and vanish. Click them before they disappear. Pace increases over time.
How much can your brain hold? These tests evaluate short-term, working, verbal, and spatial memory capacity.
Working Memory
Digit span task testing your active short-term memory capacity and focus.
Sequence Memory
Spatial recall task — watch a pattern of tiles light up, then repeat it in order.
Verbal Memory
Words shown one at a time — is it new or have you seen it? Tests word recognition memory.
Chimp Test
Numbers flash on a grid then hide — click them in order. Inspired by primate memory research.
Pattern Memory
Memorize highlighted cells on a grid, then recreate the pattern from memory. Grid grows each level.
Can you stay focused and resist distractions? These tests measure sustained attention, impulse control, and cognitive flexibility.
Sustained Attention
Continuous performance task calculating your sensitivity index (d-prime).
Go / No-Go
Click for go shapes, hold back for no-go. Measures impulse control and response inhibition.
Stroop Test
Color words in mismatched ink — name the ink color, not the word. Tests cognitive interference.
Cognitive Flexibility
Task switching paradigm to measure your "switch cost" and executive control.
How precise and fast are your hands? These tests evaluate hand-eye coordination, typing fluency, and raw tapping speed.
Aim Trainer
Click targets as fast as you can. Tests hand-eye coordination and motor speed.
Typing Speed
Type sentences as fast and accurately as you can. Measures WPM and accuracy.
Button Mashing
Click or tap as fast as you can for 10 seconds. Measures motor speed and finger dexterity.
How well do you perceive the world? These tests measure color discrimination and internal time estimation.