🧠 ERP Signal Averaging — EEG Evoked Potential

Demonstrates how ensemble averaging of N trials extracts the evoked response from background EEG noise

Trials (N): 1

Current SNR

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SNR Gain vs N=1

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dB improvement

Theoretical Gain

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10·log₁₀(N) dB

Signal Plot — Raw Trials vs. Averaged ERP vs. True ERP

Single trial (noisy)

Averaged ERP (N trials)

True ERP