Table 1.

Summary of Statistical Tests

A	Contrast	Original Task	Low Urgency
		Mean ± SEM	Mean ± SEM
Accuracy (%)	90	95 ± 0.8	93 ± 0.8
	60	91 ± 0.8	87 ± 0.8
	36	82 ± 2.3	79 ± 2.3
	12	58 ± 1.9	59 ± 1.9
OSD (ms)	90	240 ± 22	279 ± 22
	60	238 ± 24	286 ± 24
	36	244 ± 23	296 ± 23
	12	246 ± 23	305 ± 23
	Avg	242 ± 23	291 ± 23
MT (ms)	90	287 ± 10	565 ± 10
	60	280 ± 10	556 ± 10
	36	279 ± 10	558 ± 10
	12	290 ± 13	551 ± 13
	Avg	284 ± 3	557 ± 3

B	Test Task	Original Task			Low Urgency
		Low Urgency	Punished Errors	Task Water Only	Task Water Plus	Fixed Go Signal	Blocked Stimuli
	Baseline task	Original task	Original task	Control group	Control group	Original task	Interleaved stimuli
	Figure	1D and 1E	2Aii and 2Aiii	2B	2B	3C and 3D	5A–5C
Accuracy	Difficulty	+++	+++	+++	+++	+++	+++
	Task	0.4	0.0153	0.16	0.017	0.0688	+++**
	Both	0.8	0.28	0.81	0.98	0.0095	00115
OSD	Difficulty	0.83/+++*	1	0.71	0.53	0.0145	0.57
	Task	+++	+++	0.35	0.27	+++	0.58
	Both	0.98	0.95	1	0.99	0.9	0.51
MT	Difficulty	0.9998	0.93	0.9	0.87	0.99	0.42
	Task	+++	+++	0.2276	0.0584	0.79	0.65
	Both	0.9996	0.96	0.9962	0.98	1	0.6

(A) Mean accuracy, mean of median OSD and MT values of individual rats (±SEM) across sessions in original and low-urgency tasks. Averages across rats shown here are plotted in Figure 1.

(B) For six different task manipulations (rows), we analyzed three dependent variables—(1) performance accuracy (Accuracy), (2) median odor sampling duration (OSD), and (3) median movement time (MT)—in two different conditions (Test Task and Baseline Task). The figure associated with each comparison is indicated (row “Figure”). For each case, we performed a two-way ANOVA with mixture contrast (Difficulty) as one independent variable and the task condition (Task) as the other. Significance values are reported for the dependence of each dependent variable on each independent variable with values of p < 0.001 indicated as “+++.” For each comparison a different set of rats (n = 4) was tested in each the two conditions, except for the Blocked Stimuli comparison, in which the same rats (n = 6 rats) were tested with blocked and interleaved stimuli. Significant difference is indicated by (*) for p < 0.001 Friedman test for paired samples and (**) for p = 0.0086 Wilcoxon rank test (12% and 36% mixture contrast).