Sleep and Food-based Decision Making

NCT05728983 | Unknown

• 1 other identifier: SES 2018001
• Study Type: interventional
• Target: 150
• Locations: 1 country
• Sites: 1

Brief Summary

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

Conditions

Sleep

Outcome Measures

Primary Outcomes (9)

• Food-Image based go no-go task:

  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

  3 weeks

• Food-image based Approach Avoidance task

  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

  3 weeks

• Food Choice Task

  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.

  3 weeks

• Food preference (ratings) task

  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)

  3 weeks

• Delay-discounting monetary choice task

  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).

  3 weeks

• Food information based confirmation bias task

  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.

  3 weeks

• Snack/drink auction task

  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)

  3 weeks

• Story retelling task

  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.

  3 weeks

• Dietary intakes

  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.

  3 weeks

Secondary Outcomes (3)

• Psychomotor vigilance task

  3 weeks

• Karolinska sleepiness scale

  3 weeks

• Objective Sleep duration

  3 weeks

Other Outcomes (4)

• BMI

  1 day

• Emotional Eating Scale

  1 day

• Current Future self scale

  3 weeks

Study Arms (2)

Treatment group

EXPERIMENTAL

Participants randomly assigned to the treatment group arm experience both a well-rested and sleep-restricted week during the study

Other: Sleep levels

Control group

PLACEBO COMPARATOR

Participants randomly assigned to the treatment group arm experience two well-rested weeks during the study (and they still have an ad lib sleep week in between the two well-rested weeks)

Other: Sleep levels

Interventions

Sleep levels OTHER

Sleep levels are what the experimenter prescribes to participants in the study.

Control group; Treatment group

Eligibility Criteria

• Age: 18 Years - 40 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• years of age

You may not qualify if:

• at risk of major depressive or anxiety disorder (from validated screener), self-reported or suspected sleep disorder, extreme diurnal preference type (from validated screener)

Sponsors & Collaborators

• Appalachian State University: lead
• U.S. National Science Foundation: collaborator

Study Sites (1)

Appalachian State University

Boone, North Carolina, 28608, United States

RECRUITING

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 23, 2023
• First Posted: February 15, 2023
• Study Start: September 2, 2021
• Primary Completion: April 1, 2023
• Study Completion: October 1, 2024
• Last Updated: February 15, 2023

Record last verified: 2023-02

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)