EEG Lab

Neural oscillations across the scalp

Explore the 19-channel 10-20 montage EEG with tunable band amplitudes, clinical presets, focal abnormalities, and epileptiform discharges. All waveforms are generated locally from superposed oscillator models.

Clinical presets

Posterior-dominant 10 Hz alpha rhythm, low-amplitude frontal beta. The healthy resting EEG.

This is the reference pattern. Alpha should be symmetric, reactive, and maximal over occipital regions.

Recording

Duration (s)Sampling Rate (Hz)

Band Amplitudes

Delta Amplitude (µV)Theta Amplitude (µV)Alpha Amplitude (µV)Beta Amplitude (µV)Gamma Amplitude (µV)

Clinical Modifiers

Alpha ReactivityFocal SlowingEpileptiform RateAsymmetry (L−R)

Artifacts & Noise

Noise (µV)Muscle Artifact (µV)Random Seed

Focal SlowingEpileptiform Pattern

Channels

EEG Traces

19-channel montage

Spectral power

Average band power

Delta (0.5–4 Hz)

Theta (4–8 Hz)

Alpha (8–13 Hz)

Beta (13–30 Hz)

Gamma (30–50 Hz)

Interpretation

Pattern analysis

Dominant activity

10.5 Hz (alpha)

Normal posterior dominant alpha rhythm

Symmetric 8–13 Hz alpha rhythm maximal over the occipital regions with normal anterior-posterior gradient.

Alpha should attenuate with eye opening (reactivity) and be symmetric between hemispheres (< 50% amplitude difference).