Figure 1: Different forms of cognitive effort as expressed in different behavioral strategies.

Sessions were grouped based on the relative strength of a dLP-biased strategy versus an ival-tracking strategy in choice patterns. A strong bias for dLPs was observed in G1 that remained consistent regardless of ival. In contrast, G2 sessions exhibited a strong ival-tracking strategy as the ratio of dLPs:iLPs reversed when ival went from low to high. Finally, G3 exhibited a mix of both strategies such that there were more dLPs when ival was low and the ratio of dLPs to iLPs decreased at higher ivals but never exceeded 0.5.