Example
A → C → A → B → A
Press when current matches 2-back
N-Back Memory Test (2-Back)
Monitor the sequence. Press the response key only when the current symbol matches the symbol shown 2 steps earlier.
Working Memory
Focus Retention
Cognitive Load
2-Back
Test Rules
Respond only if the symbol matches the one from 2 steps earlier.
Response Key
Match detected
Press F
Otherwise
No match
Do not respond
Total Rounds
32
Estimated Duration
01:20
Scoring Method
Accuracy + Speed
Keyboard only on desktop. On mobile, tap the Match button.
Only the first response per symbol is counted.
3
Hold the last two symbols in memory.
A
Awaiting stimulus...
Press F only on a 2-back match.
Performance Summary
Strong working memory under pressure.
Final Score
0
Accuracy
0%
Average Reaction
0 ms
Correct
0
Wrong
0
Missed
0
Fastest
0 ms
Slowest
0 ms
Attention Index
0
Maintain this accuracy level under pressure to achieve operational readiness.
Focus interruptions: 0