Table 2. Medians (Interquartile ranges-IQR) for the variables and two-sample Wilcoxon Signed-rank tests for comparisons regarding referentiality. Significant differences are in bold.

Comparisons		Duration: Median (IQR)				Frequency: Median (IQR)
Food+Owner variable	Absence of Food variable	Food+Owner	Absence of Food	T	p	Food+Owner	Absence of Food	T	p
Food (Food+Owner) vs. Shelves (Absence of Food)
Gaze Food	Gaze Shelves	0.26 (0.33)	0.03 (0.07)	197	<0.0001	0.13 (0.10)	0.02 (0.05)	186.5	<0.0001
Food area	Shelves area	0.48 (0.68)	0.17 (0.28)	158	<0.0001	–
Food area×Gaze Food	Shelves area×Gaze Shelves	0.13 (0.33)	0 (0.03)	143	<0.0001	–
GA owner/food	GA owner/shelves	–				3 (4)	0.5 (1)	143	<0.0001
Food area×GA owner/food	Shelves area×GA owner/shelves	–				1 (3)	0 (0)	89.5	0.0003
Exit door (Food+Owner) vs. Exit door (Absence of Food)
Gaze Exit door	Gaze Exit Door	0.09 (0.16)	0.21 (0.35)	−124	0.003	0.07 (0.10)	0.07 (0.10)	−94.5	0.028
Exit door area	Exit door area	0 (0)	0 (0.11)	−22.5	0.019	–
Exit door area×Gaze Exit door	Exit door area×Gaze Exit door	0 (0)	0 (0.04)	−22.5	0.004	–
GA owner/exit door	GA owner/exit door	–				0 (1)	1 (1)	−87	0.0006
Food (Food+Owner) vs. Exit door (Absence of Food)
Gaze Food	Gaze Exit door	0.26 (0.33)	0.21 (0.35)	5.5	0.908	0.13 (0.10)	0.07 (0.10)	94	0.014
Food area	Exit door area	0.14 (0.20)*	0 (0.08)*	103	0.010	–
Food area×Gaze Food	Exit door area×Gaze Exit door	0.04 (0.10)*	0 (0.03)*	34.5	0.273	–
GA owner/food	GA owner/exit door	–				3 (4)	1 (1)	116	0.003
Food area×GA owner/food	Exit door area×GA owner/exit door	–				0.29 (0.87)*	0 (0)*	68	<0.0001

GA: Gaze Alternation.

*corrected regarding relative size of the areas.

Obs: Gaze Alternation was only measured in absolute frequency, and variables that involved areas were only measured in duration.