ArticleJournal of physiological anthropology2017
Subadditive responses to extremely short blue and green pulsed light on visual evoked potentials, pupillary constriction and electroretinograms.
Article in Journal of physiological anthropology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- The circadian stimulus-oscillator model: Improvements to Kronauer's model of the human circadian pacemaker.Frontiers in neuroscience · 2022Article
- Ambient-task combined lighting to regulate autonomic and psychomotor arousal levels without compromising subjective comfort to lighting.Journal of physiological anthropology · 2021Article
- A review of the studies on nonvisual lighting effects in the field of physiological anthropology.Journal of physiological anthropology · 2019Review
- Do green-blocking glasses enhance the nonvisual effects of white polychromatic light?Journal of physiological anthropology · 2018Article
- Suppression of salivary melatonin secretion under 100-Hz flickering and non-flickering blue light.Journal of physiological anthropology · 2018Article
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Authors and funding
4 authors at 1 institution in 1 country.
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Abstract
backgroundThe simultaneous exposure to blue and green light was reported to result in less melatonin suppression than monochromatic exposure to blue or green light. Here, we conducted an experiment using extremely short blue- and green-pulsed light to examine their visual and nonvisual effects on visual evoked potentials (VEPs), pupillary constriction, electroretinograms (ERGs), and subjective evaluations.
methodsTwelve adult male subjects were exposed to three light conditions: blue-pulsed light (2.5-ms pulse width), green-pulsed light (2.5-ms pulse width), and simultaneous blue- and green-pulsed light with white background light. We measured the subject's pupil diameter three times in each condition. Then, after 10 min of rest, the subject was exposed to the same three light conditions. We measured the averaged ERG and VEP during 210 pulsed-light exposures in each condition. We also determined subjective evaluations using a visual analog scale (VAS) method.
resultsThe pupillary constriction during the simultaneous exposure to blue- and green-pulsed light was significantly lower than that during the blue-pulsed light exposure despite the double irradiance intensity of the combination. We also found that the b/|a| wave of the ERGs during the simultaneous exposure to blue- and green-pulsed light was lower than that during the blue-pulsed light exposure. We confirmed the subadditive response to pulsed light on pupillary constriction and ERG. However, the P100 of the VEPs during the blue-pulsed light were smaller than those during the simultaneous blue- and green-pulsed light and green-pulsed light, indicating that the P100 amplitude might depend on the luminance of light.
conclusionsOur findings demonstrated the effect of the subadditive response to extremely short pulsed light on pupillary constriction and ERG responses. The effects on ipRGCs by the blue-pulsed light exposure are apparently reduced by the simultaneous irradiation of green light. The blue versus yellow (b/y) bipolar cells in the retina might be responsible for this phenomenon.
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