The Effect of Exposure to Food in Social Networks on Food Cravings and External Eating
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 165
- 试验地点
- 2
- 主要终点
- External eating
研究概览
简要总结
Background: Food practices are socially, culturally and historically embedded in everyday life. It is a common notion that people eat due to internal state of physiologic hunger but in fact the drive behind eating behaviors is much more complex. We eat, inter alia, because of our response to external cues such as the sight and smell of food, or external eating. Another related concept is food cravings: intense irresistible desires to consume a particular food that is distinct from hunger. Both external eating and food cravings have been associated with impulsivity, eating disorders and obesity. During recent decades the role of the media, and recently of the social media in our lives has grown significantly, and their influence on culture and society is now huge. A common activities on social media sites (SNS) is food viewing and posting pictures of tempting food, known as food porn. Food porn has been found to correlate with eating patterns and food-related attention and reward bias. The aim of this study is to conduct a controlled manipulation that may help us deduce causality as well as association. The investigators postulate that (1) viewing pictures of appetizing food will lead to higher rates of reported external eating and food craving than viewing pictures that are not food related; (2) Viewing these appetizing food pictures will lead participants to order different kinds of food and greater amounts; (3) The effect of viewing food pictures on external eating, food cravings and food orders will be greater for participants with high disturbed eating, then for participants without disturbed eating.
Method: After providing informed consent, 150 female participants (aged 18-35) will self report on demographic variables, SNS food preoccupation and disturbed eating (EAT-26). They will then be randomly assigned to watch either a food porn or control video. They will complete measures of food cravings (FCQ-S) and external eating (DEBQ) after watching the video and asked to order food they would like to eat from a virtual menu.)
详细描述
Participants Approximately 150 young participants (aged 18-35) will be recruited using a convenience sampling procedure. Participants will include Behavioral Science students at the Ruppin Academic Center who will be given credit points in exchange for participation on the stud, and young women recruited via social networks.
Measures Food cravings (state) will be assessed using the Food Craving Questionnaire (FCQ-S), a self report questionnaire with good psychometric properties (Cepeda-Benito, Gleaves, Willams, & Erath, 2000). The FCQ-S items are scaled on a five point Likret scale and measures five factors.
External eating will be assessed using the external eating scale in the Dutch Eating Behavior Questionnaire (DEBQ), a self-report questionnaire with good psychometric properties (van Strien, Frijters, Bergers, & Defares, 1986). The DEBQ measure restraint, emotional and external eating in different scales. The external eating scale contains ten statements scored on a five point Likret scale .
Disturbed eating will be assessed using the widely used Eating Attitude Test 26 (EAT-26) (Garner, Olmstead, Bohr, & Garfinkel, 1982). The EAT-26 is an 26-item measure of self reported symptoms and characteristics of EDs using a six point Likret scale (an example statement is "In the past 6 month have you: Exercised more than 60 minutes a day to lose or control your weight").
SNS food preoccupation will be measured by asking participant about specific food related SNSs activities and the frequency they engage in it. The activities include: frequency of posting food pictures on either Facebook or Instagram, frequency of encountering food pictures on either Facebook or Instagram, frequency of sending food pictures on WhatsApp, frequency of receiving food pictures on WhatsApp, frequency of following chefs, restaurants or brands on Instagram, frequency of posting pictures of food one prepared, frequency of posting pictures of food one is about to eat, frequency of taking pictures of ordered dishes in a restaurant, and lastly number of food-related groups one is a member of. The response on the first eighth questions was on a 5-point scale, ranging from 'never' to 'very often' and the response on the last question was on a 5-point scale, ranging from 0 to 7 and more. A total mean score of nine SNSs activities will be computed.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age limits:
- •Minimum (18), Unit of time (Years)
- •Maximum (35) Unit of time (Years)
- •Hebrew speaking, age 18-35
排除标准
- •age (below 18 or over 35)
研究组 & 干预措施
Appetizing Food exposure group
Participants allocated to this group will watch a 3-minute video presenting a series of pictures of appetizing foods eaten in facilities in a tourist destination. An audio of a young adult describing herself eating these foods during a trip to London will be played.
干预措施: Exposure to pictures of appetizing food (known as Foodporn) (Behavioral)
Control content watching group
Participants allocated to this group will watch a 3-minute video presenting a series of control pictures of tourist attractions in London. An audio of a young adult describing herself visiting these sites during a trip will be played.
干预措施: Exposure to neutral pictures (Behavioral)
结局指标
主要结局
External eating
时间窗: Participants' external eating state will be measured immediately after the intervention. Up to 30 minuets after the end of intervention (The exact duration of questionnaire answering takes few minutes and varies between participants)
External eating will be assessed using the external eating scale in the Dutch Eating Behavior Questionnaire (DEBQ), a self-report questionnaire with good psychometric properties. The DEBQ measure restraint, emotional and external eating in different scales. The external eating scale contains ten statements scored on a five point Likret scale.
Food cravings, state (situational)
时间窗: Participants' food cravings state will be measured immediately after the intervention. Up to 30 minuets after the end of intervention (The exact duration of questionnaire answering takes few minutes and varies between participants).
Food cravings (state) will be assessed using the Food Craving Questionnaire (FCQ-S), a self report questionnaire with good psychometric properties. The FCQ-S items are scaled on a five point Likret scale and measures five factors.
Type of ordered food
时间窗: Up to 30 minuets after the end of intervention.
Participants will be asked to order from a fixed menu the type of food they would like to eat immediately after the trial.
Amount of ordered food
时间窗: Up to 30 minuets after the end of intervention.
Participants will be asked to order from a fixed menu the amount of the chosen type of food they would like to eat immediately after the trial.
次要结局
未报告次要终点
研究者
Efrat Neter
Associate Professor
Ruppin Acdemic Center