Figure 8.

More modular neural architectures give better performance at short times (a or d, short time) and less modular memory architectures can give better performance at long times (a or d, long time). The greater modularity in adults than children, Fig. 2, is consistent with either cognitive performance at short times is more important in adults than children (top arrow) or that memories are less clustered in adults than children (bottom arrow). Overlap is a measure of the probability that the neural state correctly recalls a memory. The modularity of the connection matrix is M. The timescale is of order seconds. The clustering of the stored patterns is denoted by p.