Eye movement analysis of children’s attention for midline diastema

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

10 Scopus Citations
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Author(s)

  • Vanessa Y. Cho
  • Janet H. Hsiao
  • Hien C. Ngo
  • Nigel M. King
  • Robert P. Anthonappa

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Detail(s)

Original languageEnglish
Article number7462
Journal / PublicationScientific Reports
Volume12
Online published6 May 2022
Publication statusPublished - 2022

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Abstract

No previous studies have investigated eye-movement patterns to show children’s information processing while viewing clinical images. Therefore, this study aimed to explore children and their educators’ perception of a midline diastema by applying eye-movement analysis using the hidden Markov models (EMHMM). A total of 155 children between 2.5 and 5.5 years of age and their educators (n = 34) viewed pictures with and without a midline diastema while Tobii Pro Nano eye-tracker followed their eye movements. Fixation data were analysed using data-driven, and fixed regions of interest (ROIs) approaches with EMHMM. Two different eye-movement patterns were identified: explorative pattern (76%), where the children’s ROIs were predominantly around the nose and mouth, and focused pattern (26%), where children’s ROIs were precise, locating on the teeth with and without a diastema, and fixations transited among the ROIs with similar frequencies. Females had a significantly higher eye-movement preference for without diastema image than males. Comparisons between the different age groups showed a statistically significant difference for overall entropies. The 3.6–4.5y age groups exhibited higher entropies, indicating lower eye-movement consistency. In addition, children and their educators exhibited two specific eye-movement patterns. Children in the explorative pattern saw the midline diastema more often while their educators focussed on the image without diastema. Thus, EMHMMs are valuable in analysing eye-movement patterns in children and adults.

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Citation Format(s)

Eye movement analysis of children’s attention for midline diastema. / Cho, Vanessa Y.; Hsiao, Janet H.; Chan, Antoni B. et al.
In: Scientific Reports, Vol. 12, 7462, 2022.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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