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KMID : 1011420170220030261
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Journal of Korean Ophthalmic Optics Society
2017 Volume.22 No. 3 p.261 ~ p.270
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Pupillary Responses and Chrominance Components in Natural Viewing Conditions
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Lee Doo-Hwan
Jang Man-Ho
Paik Doo-Jin
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Abstract
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Purpose: This study aimed to provide a basis for the functional relationship between chrominance components and pupillary responses under natural viewing conditions.
Methods: The pupil data for twelve subjects with normal vision were collected by an eye-tracker when they were watching a 45-minute music video, and analyzed with respect to its chrominance components such as hue, saturation and lightness.
Results: The pupillometric results show that mydriasis and miosis had similar frequency and amplitude. The count of hues had positive relationships between the amplitude of pupillary responses, and such relationships are universal features of red and yellow amongst the hues. While the frequency and amplitude of miosis did not show any significant relationships with both levels of saturation and lightness, those of mydriasis were positively and negatively related to saturation and lightness respectively.
Conclusions: Chrominance components are functionally more related to mydriasis than to miosis.
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KEYWORD
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Pupil, Mydriasis, Miosis, Chrominance, Saturation, Lightness
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