Table 1.

Outline of Experimental Procedures

Experiment 1
Group	Phase 1	Phase 2	Test
UNB	V1→fd1	V1N→fd1→fd2	N
CTL	V1→fd1→fd2	V1N→fd1→fd2	N
Experiment 2
Group	Phase 1	Phase 2	Test
UNB	V1→food	V1N→food→suc	N
	V2→suc	V2→suc
CTL	V1→food→suc	V1N→food→suc	N
	V2→suc	V2→suc

UNB, Unblocking condition; CTL, control condition; V1 and V2, visual cues; N, white noise cue; fd1, 1 food pellet; fd2, 2 food pellets; suc, sucrose.