Table 1.

Design Experiment 1.

Group	n	Compound cue training	Deprivation cue test	Compound cue retraining	Cue competition test
0+	16	0A+, 24B−	0+, 24−	0A+, 24B−	0B−. 24A−
24+	16	24A+, 0B−	24+, 0−	24A+, 0B−	24B−, 0A−

Note: 0+ = rewarded under 0 h but not 24 h deprivation; 24+ = rewarded under 24 h but not 0 h deprivation; A and B = external tone or white noise cues counterbalanced across groups.