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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Dev Sci. 2014 Jul 4;17(6):833–840. doi: 10.1111/desc.12207

Figure 2.

Figure 2

Average duration of fixations and frequency of fixations for lipsmacking-imitators (grey, N=16) and lipsmacking-non-imitators (white, N=21). Phase illustrated on x-axis as SF = still face (combined average from Lipsmacking and Tongue Protrusion videos), LPS = lipsmacking gesture, TP = tongue protrusion gesture. Error bars denote standard error. 2A: Eye-Mouth Index (Eye / Eye + Mouth) for average fixation durations. 2B: Eye-Mouth Index (Eye / Eye + Mouth) for average frequency of fixations.