Results from a set of region-of-interest analyses. dlPFC regions-of-interest (ROI) were drawn from fMRI studies on self-control in multi-attribute choice and in ITC [8]–[10].

<p>Using data from two previous studies <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0072626#pone.0072626-McGuire1" target="_blank">[21]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0072626#pone.0072626-Botvinick2" target="_blank">[22]</a>, we tested whether task-induced activity in these regions predicted a reduction in reward-receipt responses in ventral striatum, i.e. effort discounting <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0072626#pone.0072626-Botvinick2" target="_blank">[22]</a>, and such activity predicted subsequent task-avoidance behavior <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0072626#pone.0072626-McGuire1" target="_blank">[21]</a>. All tests yielded significant effects, based on one-tailed t-tests.