Analysis of gaze point retention times for closed­mouth and smiling facial images

We used gaze­point analysis to clarify the degree of gazing at the mouth region in closed ­lip and smiling facial photographs. Eye­tracking for 20 subjects was performed while they looked at facial images. Measurement sites were set at the eyes, nose and mouth of the images. We investigated heat map...

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Bibliographic Details
Published inJournal of Osaka Dental University Vol. 51; no. 2; pp. 73 - 79
Main Authors YAMAMOTO, Mayu, TORII, Katsunori, NAKAJIMA, Toshiki, TANAKA, Junko, TANAKA, Masahiro
Format Journal Article
LanguageEnglish
Published Osaka Odontological Society 2017
Subjects
Esthetic
Eye tracking
Face
Gaze point
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Summary:We used gaze­point analysis to clarify the degree of gazing at the mouth region in closed ­lip and smiling facial photographs. Eye­tracking for 20 subjects was performed while they looked at facial images. Measurement sites were set at the eyes, nose and mouth of the images. We investigated heat maps of the total gaze point retention time, the percent­ age of subjects with initial gaze points at each measurement site, and gaze point reten­ tion times at each site. For all investigated items, the subjects gazed at the mouth in smiling faces more than in closed­mouth faces. The gaze point retention time for the eyes in the smiling faces was significantly shorter than that in the closed­mouth faces,and the gaze point retention time for the mouth in the smiling faces was significantly longer. We found that the subjects gazed at the mouth of the smiling faces for a longer time than at the closed­mouth faces. (J Osaka Dent Univ 2017;51:73­-79)
ISSN:0475-2058
2189-6488
DOI:10.18905/jodu.51.2_73