Figure 8.

Power-law synaptic decay characteristic time distribution. (a) Retrieval probability as a function of memory age on log-log scale (blue), with power-law fit in black (dashed line, slope$\approx 1$). Here $\lambda \tau =5$ for the empirical mean $\tau$, $b=0.25$, the power $\alpha =1.5$. The minimal $\tau$ is 20. (b) Goodness of fit ($R^2$) for the forgetting curve using an exponential function (orange, dash-dot) and power-law function (blue), as a function of the power parameter of the characteristic time distribution.