Dual N-Back Challenge

Research-Grade Working Memory Training

About This Task

Dual N-Back is one of the few scientifically-validated exercises proven to increase fluid intelligence (Gf). Unlike simple games, this requires tracking two independent sequences simultaneously – visual positions AND audio letters.

Your brain must maintain, update, and compare information in working memory while filtering distractions. This intense cognitive load activates the prefrontal cortex and strengthens executive function networks.

🔬 Scientific Evidence

IQ Enhancement Studies show 4+ weeks of training increases fluid intelligence scores

Working Memory Capacity Expands ability to hold and manipulate multiple information streams

Executive Control Strengthens attention switching and cognitive flexibility

Transfer Effects Improvements generalize to problem-solving and reasoning tasks

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Dual-Task Paradigm

Track position AND audio simultaneously

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N-Back Memory

Compare current to N steps back (2-back mode)

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Cognitive Load

High-intensity brain workout

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Research Validated

Used in neuroscience studies

How It Works (2-Back Mode)

Visual Track: A square lights up in one of 9 positions
Audio Track: You hear a letter (C, H, K, L, Q, R, S, T)
Your Task: Press "Position Match" if current position = 2 steps back
Press "Audio Match" if current letter = 2 steps back
Both Can Match: Press both buttons when needed!
Neither: Wait for next trial without pressing

⚠️ Challenge Level: This task is cognitively demanding. Don't be discouraged by low initial performance – that's normal! Your brain is literally creating new neural pathways. Consistency matters more than perfection.

Trial

0/20

Correct

Accuracy

Level

2-Back

Audio Letter

🎯 Quick Reference

Position Match: Current square = 2 trials back

Audio Match: Current letter = 2 trials back

Tip: Focus on the sequence, not individual items

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Training Complete!

Correct

Errors