Fig. 7

Growth of zero-lag temporal autocorrelation and slowing of decay-rate prior to phase transition. Biexponential expressions of the form \(c_{1} \exp(-m_{1} \tau) + c_{2} \exp(-m_{2} \tau)\) were fitted to the decay envelopes of the temporal autocorrelations of Fig. 6. Top panels display predicted and measured normalized variance \(c_{1} + c_{2}\) of the fitted curve; bottom panels are the \(m_{2}\) slow exponential decay-rates (in (ms)⁻¹)