Insufficient Sleep and Dietary Choices: An Ecologically Valid Examination of the Decision Foundations of Eating Behaviors When Sleep Restricted
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 150
- 试验地点
- 2
- 主要终点
- Food preference (ratings) task
研究概览
简要总结
This study administers two prescribed sleep levels, each lasting one week, that participants will complete in their at-home environment. One week is a well-rested (8-9 hrs/night attempted sleep) and another is a sleep-restricted (5-6 hrs/night attempted sleep) condition. In between these two conditions is an ad lib sleep week. At the end of each treatment week, the participants come to a laboratory session to go through a series of decision making tasks. Participants also track dietary intake through the 3-week protocol using the ASA24 website.
This study was fully preregistered on the open science framework (OSF) has has registration DOI at https://doi.org/10.17605/OSF.IO/NSPRK
详细描述
THE PRELIMINARY SCREENING SURVEY:
This short demographic, sleep, and mood survey is administered at least twice a year by the investigator (Dickinson) on random subsets of students at his institution. This database survey had been ongoing for several years and has been approved under separate human subjects approval process, and has been used by the investigator (Dickinson) to recruit for a variety of "sleep and decision" research studies over the years.
This short survey provides sufficient information for the investigators to screen out individuals who self-report a sleep disorder, who are not within the 18-40 year old target age range for this study, who are at significant risk of major depressive or anxiety disorder (assessed using validated short-instruments). Viable participants who meet the inclusion criterion (usually, only about 2/3 of those who complete the survey) are randomly assigned to either the control condition or a particular ordering of the treatment condition (SR-WR or WR-SR), ex ante. Afterwards, these individuals are invited to participate in the experiment via email. (note, participants are NOT allowed to opt into a condition or treatment ordering to which they were not randomly assigned)
THE SLEEP PROTOCOL:
The basic sleep protocol will involve recruitment of a total of 130 participants. Participants are randomly assigned to the control condition (N=30) or the treatment condition (n=100). The investigators anticipate some attrition such that n>130 will be enrolled in the study to ultimately obtain n=130 participants who will have successfully completed the entire protocol.
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
- None
入排标准
- 年龄范围
- 18 Years 至 40 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •18-40 years of age
排除标准
- •at risk of major depressive or anxiety disorder (from validated screener), self-reported or suspected sleep disorder, extreme diurnal preference type (from validated screener)
结局指标
主要结局
Food preference (ratings) task
时间窗: 3 weeks
This just asks individual to report on a 0-100 scale how much they like various foods based on a displayed image of each (with higher numbers meaning the participant likes the item more)
Food-image based Approach Avoidance task
时间窗: 3 weeks
This is a validated task available in Inquisit programmed form and it assess automatic processing to compare one's tendency to approach (pull image towards oneself on computer screen) or avoid (push image away from oneself on computer screen) images reflecting healthier versus less healthy foods
Food information based confirmation bias task
时间窗: 3 weeks
This task assesses one's tendency to consider arguments regarding the healthiness or tastiness of food as more or less strong based on whether that participants dominant food ideology favors the consideration of healthiness or tastiness of food. The investigators have pilot tested and published a paper on this task.
Snack/drink auction task
时间窗: 3 weeks
In this task, participants are given a snack and a beverage as part of a decision session and allowed to bid on how much they would pay (or need to be paid) to exchange their snack or drink for a different snack or drink. Various combinations of snack auctions and drink auctions are considered in order to compare willingness to pay for healthier or less healthy snacks or drinks)
Delay-discounting monetary choice task
时间窗: 3 weeks
This validated task asks one's preference of monetary amounts received today versus larger amounts received at some future point (e.g., 7 days, or 85 days later). Actual choices are paid out for a randomly selected subset of participants on a randomly selected trial (different trials vary the size of the monetary difference and the number of delays for the delayed reward).
Story retelling task
时间窗: 3 weeks
This validated task presents participants with a short story that they are asked to retell so that we can assess preservation of key story details.
Food-Image based go no-go task:
时间窗: 3 weeks
This task is validated in the literature and available in Inquisit programmed form. It assesses inhibitory control in food related image selection (go) or non-selection (no-go) as compared to non-food related images
Food Choice Task
时间窗: 3 weeks
This task gives participants a short time span (e.g., 10 seconds) to select a set of food images to place in one's onscreen cart. Images includes healthier and unhealthy items.
Dietary intakes
时间窗: 3 weeks
These data are gathered from daily dietary intakes input by participants on the ASA24 dietary recall website, which allows for separation of outcomes by various macronutrients.
次要结局
- Karolinska sleepiness scale(3 weeks)
- Psychomotor vigilance task(3 weeks)
- Objective Sleep duration(3 weeks)