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. 2022 Nov 15;12:19620. doi: 10.1038/s41598-022-24136-2

Figure 5.

Figure 5

Facial asymmetry index and behavioral groups. (A) Facial asymmetry index of each behavioral group (“A”: dogs displaying high scores in stranger-directed aggression; “A–F”: dogs displaying high scores in both stranger-directed aggression and stranger-directed fear; “F”: dogs displaying high scores in stranger-directed fear; “C”: control dogs displaying low scores in both stranger-directed aggression and stranger-directed fear; group means with SEM are shown); Asterisks indicate significant biases. *P < 0.05; **P < 0.01 (Fisher’s LSD test). (B) Facial asymmetry index of each behavioral group during the baseline and arousing experimental conditions (i.e. group means with SEM are shown); Asterisks indicate significant biases. *P < 0.05; **P < 0.01 (Fisher’s LSD test).