Fig. 6.

Activity flow in different input contexts. A: patterns of excitatory recruitment in single trials after input A (blue connections) and after input B (green connections). Rarely, pairwise recruitment recurred across both trials (orange connections). Hidden excitatory and inhibitory neurons are not shown. Rows indicate cell identity. Although pairwise recruitment was largely unique between trials, many single neurons were active in both trials (rows in middle, orange bar). B: single neurons are commonly active at least one time in every input context. In contrast, pairwise recruitment relationships tended to occur in just one or a few input contexts. C: cross-validation verifies that activity across different input contexts genuinely differs, quantified with L₁ distance (city-block distance) for activity vectors within the same input context vs. between different input contexts.