| Download | - View accepted manuscript: Modulation of fluorescent light : flicker rate and light source effects on visual performance and visual comfort (PDF, 1.3 MiB)
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| Author | Search for: Veitch, J. A.1; Search for: McColl, S. L. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | lighting; Lighting and health; Fluorescent lighting |
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| Abstract | The effects of fluorescent light spectral composition and flicker rate on visual performance and visual comfort were studied on 48 undergraduate students using two different rates of flicker: conventional low-frequency flicker (120 Hz) and high frequency flicker (between 20-60 kHz); and three different light sources; full-spectrum lamps, cool-white lamps, and filtered-cool-white lamps. The design was a 2 x 3 (Flicker Rate X Light Source) mixed within-between ANOVA. Visual performance and time on visual performance task were assessed using a Landolt ring task. Visual comfort was assessed by self-report after a period of reading difficult text. Visual performance scores of 18-24-year-old male and female university students were significantly higher in the high-frequency flicker condition than the low-frequency flicker condition. Therewere no other statistically significant effects. Health status was unrelated to visual performance. Neurophysiological explanations are discussed. The finding that an energy-efficient means of driving fluorescent lamps also can improve visual performance provides added impetus to adopt this new technology. |
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| Publication date | 1995 |
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| In | |
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| Note | Also presented at the Canadian Psychological Association 1995 Annual Convention, Charlottetown, PEI, June 15-17. |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 38944
NRC-IRC-5645 |
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| NPARC number | 20375194 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 33a6829d-4261-423c-a2dd-ebcd289d5cea |
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| Record created | 2012-07-23 |
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| Record modified | 2020-04-29 |
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