ZFIN Image: Burrows et al., 2023, Figure 2

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Figure Caption

Figure 2

Avalanche estimation.

(A) Neurons exhibit on (red circles) and off (white circles) dynamics giving rise to ensembles that grow in space and time. (B) Hidden Markov model estimation of calcium transients showing normalised traces (blue), and estimated calcium transients (red). (C) Avalanche calculation legend. (D) For avalanches to begin, at least 3 nodes within the same neighbourhood must be active at t₀. To propagate in time, any avalanche node active at t₀ must also be active at t₁. Once this step is satisfied, any nodes active at t₁ that are connected via a neighbourhood to avalanche nodes at t₁ become avalanche members. Avalanches terminate when no more nodes are active. Avalanche size (s) is the total number of activations and duration (d) is the number of time steps of the avalanche.

Acknowledgments

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