Sampling effects and measurement overlap can bias the inference of neuronal avalanches
Fig 3
Coarse-sampling leads to greater correlations than sub-sampling.
Pearson correlation coefficient between the signals of two adjacent electrodes for the different dynamic states. Even for independent (uncorrelated) Poisson activity, measured correlations under coarse-sampling are non-zero. Parameters: Electrode contribution γ = 1, inter-electrode distance dE = 400 μm and time-bin size Δt = 8 ms.