Fig 6. Snapshot of the internal dynamics of (A) layer 5 and (B) layer 3 plotted on the two dimensional PCA space.

(A) PCA results on the internal dynamics at the end of all the concatenated actions (time step = 99) in layer 5. Nine groups corresponding to the nine different concatenated action categories appeared in the plot. Those nine groups presented themselves as three large clusters arranged according to the second action categories (blue dotted triangle), and each large cluster was also sub-divided into three isomorphic sub-clusters according to the first action categories (red dotted triangle). (B) PCA results on the internal dynamics at the end of the second action of all the concatenated actions (time step = 84) in layer 3. Three clusters were organized based on the current action category.