Critical Slowing Down Governs the Transition to Neuron Spiking
Fig 6
Prediction of the spiking threshold using scaling relations of critical slowing down.
a, The critical voltage Vc in pyramidal neurons was determined as a fit parameter by fitting recovery rates λ (red markers) excluding the last five measurements (blue markers) to voltage by λ = a(Vc−V)θ. ΔVp is the difference between the fitted critical voltage (red line) and the last value included in the fit (green line); ΔVm, respectively, refers to the difference between the measured voltage at the onset of spiking (blue line) and the last value used in the fit (green line). b, Predicted ΔVp and measured ΔVm exhibit a significant correlation when fitted with exponent θ = 0.5 but not when fitted with exponent θ = 1.0 (c). P and R values refer to the linear regression analysis (solid black lines).