The Impact of Light Exposure on Cognitive Function in Classrooms
试验速览
- 阶段
- 1 期
- 状态
- 招募中
- 入组人数
- 300
- 试验地点
- 3
- 主要终点
- Assessment of attention
研究概览
简要总结
Humans are constantly exposed to a variety of light types, created naturally or through artificial means. Light exposure captured by the eyes impacts many physiological functions in humans, including but not limited to cognitive output, fatigue levels, and mood regulation. The level of impact on cognitive learning from different types of light on undergraduate adult students remains unclear.
详细描述
This study has chosen to test light's impact on adult (18 years and older) undergraduate students' cognitive function. We hypothesize that students who wear light-enriched Type1 glasses (bright light emitting glasses) for one session (20 minutes) will experience greater cognitive function, than those who either wear light-enriched Type 2 glasses(placebo light) or no glasses at all.
This study will answer the following questions:
- After a single session (20 minutes) of wearing light-enriched glasses, on average how much did the students' cognitive function increase as compared to students without light-enriched glasses?
- Does cognitive function increase to a comparable degree using both types of light-enriched glasses for a single session (20 minutes)?
- Does the time of day impact the effects of light-enriched glasses during a single session (20 minutes), thus improve cognitive function?
- Does time of day impact cognitive function for students who do not participate in light-enriched testing?
The study will gather additional data variables on the following questions: 5. After wearing either type of light-enriched glasses, did the student's fatigue decrease throughout the study? How does this data compare to those who did not take part in light glasses testing? 6. After wearing either type of light-enriched glasses, did the student's mood increase throughout the study? How does this data compare to those who did not take part in light glasses testing? 7. How does the compiled data from the questionnaires and tests compare to sleep data collected from Smart Watches?
Objectives:
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- Single (Investigator)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •for wearing light glasses:
- •Current Michigan State University (MSU) Undergraduate Student
- •Are 18 years or older
- •Healthy subject without light sensitivity
- •Average bedtime 9:30 pm - 2:00 am, 6 out of 7 days a week
- •Willingness to measure and report fatigue levels
- •Willingness to participate in cognitive testing
- •Willingness to wear light-enriched glasses in the classroom
- •Inclusion criteria for the control group (will not wear light glasses):
- •Current Michigan State University (MSU) Undergraduate Student
- •Are 18 years or older
- •Average bedtime 9:30 pm - 2:00 am, 6 out of 7 days a week
- •Willingness to measure and report fatigue levels
- •Willingness to participate in cognitive testing
- •Inclusion criteria for the control group (will not wear light glasses):
- •Current Michigan State University (MSU) Undergraduate Student
- •Are 18 years or older
- •Average bedtime 9:30 pm - 2:00 am, 6 out of 7 days a week
- •Willingness to measure and report fatigue levels
- •Willingness to participate in cognitive testing
排除标准
- •for wearing light glasses:
- •Are younger than 18 years of age
- •Participation in shift work (evening/night shifts, early morning shifts, rotating shifts, etc.)
- •Pregnant women
- •Previous diagnosis of diabetes
- •Use of medication that would cause sensitivity to light (e.g., antidepressants, antibiotics,prescribed sleep medication, prescribed pain meds)
- •Epilepsy or a history of seizures
- •Photophobia - sensitivity or eye discomfort to bright light
- •Eye Diseases that limit the ability of light to be processed (e.g., untreated cataracts,severe glaucoma, macular degeneration, blindness, pupil dilation problems, or retinadamage)
- •Previous eye surgery
- •Previous head injuries (e.g., concussions)
- •Current chronic, severe headaches/migraines
- •Clinical insomniacs or those with diagnosed sleep disorders
研究组 & 干预措施
Light glasses type 1
Experimental light emitting glasses.
干预措施: Light emitting glasses (Device)
Light glasses type 2
Placebo light emitting glasses
干预措施: Light emitting glasses (Device)
No glasses control
No glasses control group
结局指标
主要结局
Assessment of attention
时间窗: 3 weeks. One test per week
To measure the impact of the intervention on attention, for each student we will measure the time it takes for the student to complete the provided test, and the number of errors in the test. Each student will completed the test, before and after the intervention, and the change in test score (time and errors) calculated.
次要结局
- Determine how time of day impacts attention(3 weeks. One test per week)
研究者
Hanne M Hoffmann
Principal Investigator
Michigan State University