Figure 1.

(A) The schematic shows the major features of the spatial delay discounting maze. (B) Adjusting delay duration is plotted against trial number in a single control session. The adjusting delay varies depending on the rat’s choice of the same side (adjustment), the opposite side (alternation, characterizing the exploitation phase of the session), or initiation of a new trial in place of the delay and reward (interruption). (C) In the paradigm, alternating between sides stabilizes the delay, while choosing the same side consecutively adjusts the delay. The paradigm was adapted from Papale, Stott, Powell, Regier, & Redish, 2012.