The Acute Effects of Intermittent Light Exposure in the Evening on Alertness and Subsequent Sleep Architecture
Bibliographic Data
| ID | 15513153 |
|---|---|
| Authors | Minqi Yang (0009-0006-7531-8955, South China Normal University), Ning Ma (0000-0002-9503-3192, South China Normal University), Yingying Zhu (0000-0002-0940-623X, South China Normal University), Ying-Chu Su (National Chengchi University), Qingwei Chen (0000-0002-5458-0210, South China Normal University), Fan‐Chi Hsiao (0000-0002-8559-9707, National Chengchi University), Fan-Chi Hsiao (National Chengchi University), Yanran Ji (South China Normal University), Chien-Ming Yang (National Chengchi University), Chien‐ming Yang (0000-0001-8144-8496, National Chengchi University, corresponding author), Guofu Zhou (0000-0002-4104-403X, South China Normal University, corresponding author) |
| Year | 2018 |
| Volume | 15 |
| Issue | 3 |
| Pages | 524-524 |
| Publication date | 2018-03-15 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph15030524 |
| PMID | 29543731 |
| OpenAlex | W2793091621 |
| Language | EN |
| Citations received | 1 |
| References cited | 54 |
Exposure to bright light is typically intermittent in our daily life. However, the acute effects of intermittent light on alertness and sleep have seldom been explored. To investigate this issue, we employed within-subject design and compared the effects of three light conditions: intermittent bright light (30-min pulse of blue-enriched bright light (~1000 lux, ~6000 K) alternating with 30-min dim normal light (~5 lux, ~3600 K) three times); continuous bright light; and continuous dim light on subjective and objective alertness and subsequent sleep structure. Each light exposure was conducted during the three hours before bedtime. Fifteen healthy volunteers (20 ± 3.4 years; seven males) were scheduled to stay in the sleep laboratory for four separated nights (one for adaptation and the others for the light exposures) with a period of at least one week between nights. The results showed that when compared with dim light, both intermittent light and continuous bright light significantly increased subjective alertness and decreased sleep efficiency (SE) and total sleep time (TST). Intermittent light significantly increased objective alertness than dim light did during the second half of the light-exposure period. Our results suggested that intermittent light was as effective as continuous bright light in their acute effects in enhancing subjective and objective alertness and in negatively impacting subsequent sleep
Alertness · Audiology · Bedtime · Circadian rhythm · Evening · Physics · Psychiatry · Sleep (system call · Circadian rhythm and melatonin · Medicine · Psychology · Sleep and related disorders · Sleep and Work-Related Fatigue · Internal Medicine
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| Unique citing works | 1 |
|---|---|
| Citations per year | 0,5 |
| Citation span | 2024 - 2024 (1) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 1 |