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Structural Synaptic Plasticity Has High Memory Capacity and Can Explain Graded Amnesia, Catastrophic Forgetting, and the Spacing Effect

Figure 4

Increase of effectual connectivity during memory consolidation with ongoing structural plasticity.

Each curve shows the evolution of effectual connectivity as a function of time for different parameters (anatomical connectivity), (potential connectivity), (consolidation load), and (fraction of initially consolidated synapses). Data are from single microscopic network simulations (solid black; cf. Eq. 4; network size ) and macroscopic theory (dashed gray; Eq. 11). See Table 1 for further simulation parameters. A: for different consolidation loads and constant , , . B: for different fractions of initially consolidated synapses and constant , , . C: for different anatomical connectivities and constant , , .

Figure 4

doi: https://doi.org/10.1371/journal.pone.0096485.g004