Theta-Gamma Neural Oscillator Coupling

Hippocampal theta (4–12 Hz) modulates gamma (30–80 Hz) amplitude — cross-frequency coupling (CFC). Each theta cycle gates multiple gamma bursts, enabling memory encoding (Lisman & Buzsáki 2008).

Parameters

Theta freq (Hz) 8 Gamma freq (Hz) 40 Coupling strength 0.80 Gamma noise 0.15

Gamma/theta ratio: 5.0
Phase-amplitude coupling shown in polar plot →