Effect of home-cage diet histories on reinstatement of food seeking.

<p><b>A.</b> Effect of discrete cue presentation on reinstatement. Active lever responding (mean±SEM) under extinction (with cue) conditions following a single non-contingent cue presentation at the start of the session. *Different between the last day of extinction (without cue) and cue-test within subject, p<0.05. ^# Different in overall lever pressing from chow-only group, p = 0.06. <b>B.</b> Effect of pellet priming on reinstatement. Active lever responding (mean±SEM) under extinction conditions (with cue) following 1, 2, and 4 non-contingent pellet deliveries at the beginning of an extinction session. *Different between 0 pellet baseline (last one hour extinction session) and respective pellet test within subject, p<0.05. ^# Different in overall lever pressing from chow-only group, p<0.05. <b>C.</b> Effect of intermittent footshock on reinstatement. Active lever responding (mean±SEM) under extinction conditions (with cue) following 5 min and 10 min of intermittent footshock.