Physiological Variables
Real-time
Neural Synchrony
ⓘ
50%
Asynchronous (Noise)
Fully Coherent
Active Pyramidal Cells
ⓘ
5,000
Few (Local Spike)
Massive (Macro EEG)
Impedance
ⓘ
120 kΩ
Low
High
Simulation Speed
ⓘ
0.4x
Slow-motion (0.1x)
Fast (1.5x)
Guided Physics Concepts
Head Cross-Section & Neurons
🔍 Click on tissues or charges to inspect
Amplified EEG Output
0.5s Epoch
60Hz Notch Active
10 µV / div
PEAK-TO-PEAK
12.4 µV
SIGNAL NOISE RATIO
4.2 dB
Anatomy & Biophysics
Inspection panel
Welcome to EEG Biophysics
This simulator visualizes the micro-scale electrical phenomena that build up the macro-scale EEG waveforms measured by clinical and scientific systems.
Click on the Head Cross-Section layers or use the Guided Physics Concepts to begin investigating how electrical currents propagate through the skull.
Key Biophysics Fact
Individual action potentials (spikes) do not generate EEG signals. Instead, EEG is formed by the spatial summation of slower synaptic potentials (EPSPs and IPSPs).