Virtual food for real thought: how to improve extinction learning in anorexia nervosa

真实思考的虚拟食物:如何改善神经性厌食症的灭绝学习

基本信息

  • 批准号:
    MR/V003283/1
  • 负责人:
  • 金额:
    $ 30.13万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2021
  • 资助国家:
    英国
  • 起止时间:
    2021 至 无数据
  • 项目状态:
    未结题

项目摘要

People with anorexia nervosa experience intense anxiety at mealtimes. The anxiety is often related to the prospect of eating and to the consequences of eating, such as weight gain, unmanageable distress, and loss of control over food. Current psychological treatments of anorexia nervosa encourage patients to develop a more positive relationship with food, but rarely demonstrate the use of practical strategies to cope with food-related anxiety. This project will use exposure to virtual foods to establish which mechanisms underline successful reduction of food-related anxiety in anorexia nervosa. Exposure therapy consists of gradual exposure to a feared stimulus and is the most effective treatment of anxiety disorders. In anorexia nervosa, food exposure has been used with some degree of success to improve eating behaviour and favour weight gain. However, the mechanisms of food exposure remain largely untested with the result that there is limited understanding of the strategies that can maximise its efficacy. This study will use the novel technology of virtual reality to test the mechanisms of food exposure. Virtual reality enables researchers to create environments that resemble those experienced in real life, while ensuring high levels of control over the variables which are measured. Participants with anorexia nervosa will be exposed to a virtual kitchen and asked to explore as many virtual food items as possible. Their anxiety and behaviours in response to the virtual foods will be recorded (e.g. looking at, approaching, grabbing, holding virtual foods). Each participant will be assigned by chance to one of three conditions: exposure to virtual foods (1), exposure to virtual foods while interacting with a virtual pet showing affection (2) and exposure to virtual foods while interacting with a talking human-like character (AVATAR) that encourages to challenge the eating disorder voice (3). Following exposure to the virtual kitchen, participants will be invited to take part in a taste-test, during which anxiety and behaviours in response to a range of real foods will be measured. The hypothesis is that participants exposed to the virtual foods while also receiving positive mood induction or recovery-focused social support will experience a greater reduction in food-related anxiety and will approach food more, both in the virtual environment and during the taste-test, compared to participants who only receive exposure to virtual foods. This study will prove the efficacy of food exposure, positive mood induction and recovery-oriented social support to help people with anorexia nervosa to cope with eating-related anxiety. The clinical potential of this project is to develop a novel intervention that helps people creating a positive relationship with food. The use of virtual reality ensures that the intervention can be easily disseminated to, and used by, patients over time and in their own environments.
患有神经性厌食症的人在吃饭时会感到强烈的焦虑。焦虑通常与进食的前景和进食的后果有关,如体重增加、无法控制的痛苦和对食物的失控。目前神经性厌食症的心理治疗鼓励患者与食物建立更积极的关系,但很少展示使用实用的策略来科普与食物相关的焦虑。该项目将使用暴露于虚拟食物来确定哪些机制强调成功减少神经性厌食症中与食物相关的焦虑。暴露疗法包括逐渐暴露于恐惧的刺激,是焦虑症最有效的治疗方法。在神经性厌食症中,食物暴露已在一定程度上成功地用于改善饮食行为和促进体重增加。然而,食物暴露的机制在很大程度上仍然未经测试,结果是对可以最大限度地提高其功效的策略的理解有限。本研究将利用虚拟现实的新技术来测试食物暴露的机制。虚拟现实使研究人员能够创建类似于真实的生活中所经历的环境,同时确保对测量变量的高水平控制。患有神经性厌食症的参与者将接触到一个虚拟厨房,并被要求探索尽可能多的虚拟食物。他们对虚拟食物的焦虑和行为将被记录(例如,看,接近,抓取,持有虚拟食物)。每个参与者将被随机分配到三个条件中的一个:接触虚拟食物(1),接触虚拟食物,同时与一个表现出感情的虚拟宠物互动(2),接触虚拟食物,同时与一个会说话的类人角色(AVATAR)互动,鼓励挑战饮食失调的声音(3)。在接触虚拟厨房后,参与者将被邀请参加口味测试,在此期间,将测量对一系列真实的食物的焦虑和行为。该假设是,与仅接受虚拟食物的参与者相比,暴露于虚拟食物的参与者在接受积极情绪诱导或以恢复为中心的社会支持的同时,将经历与食物相关的焦虑的更大减少,并且在虚拟环境和品尝测试期间将更多地接近食物。本研究将证明食物暴露、积极情绪诱导和康复导向的社会支持对帮助神经性厌食症患者科普进食相关焦虑的有效性。该项目的临床潜力是开发一种新的干预措施,帮助人们与食物建立积极的关系。虚拟现实的使用确保了干预可以随着时间的推移和在他们自己的环境中容易地传播给患者并由患者使用。

项目成果

期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Exploring Correlations of Food-Specific Disgust with Eating Disorder Psychopathology and Food Interaction: A Preliminary Study Using Virtual Reality.
  • DOI:
    10.3390/nu15204443
  • 发表时间:
    2023-10-19
  • 期刊:
  • 影响因子:
    5.9
  • 作者:
    Bektas S;Natali L;Rowlands K;Valmaggia L;Di Pietro J;Mutwalli H;Himmerich H;Treasure J;Cardi V
  • 通讯作者:
    Cardi V
Virtual food exposure with positive mood induction or social support to reduce food anxiety in anorexia nervosa: A feasibility study.
虚拟食物暴露与积极情绪诱导或社会支持可减少神经性厌食症的食物焦虑:一项可行性研究。
A pilot randomized control trial of online exposure for eating disorders and mechanisms of change delivered after discharge from intensive eating disorder care: A registered report.
  • DOI:
    10.1002/eat.23603
  • 发表时间:
    2021-11
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    Levinson, Cheri A.;Ralph-Nearman, Christina;Brown, Mackenzie L.;Gardner, Taylor;Cardi, Valentina;Treasure, Janet;Purves, Kirstin;Eley, Thalia C.
  • 通讯作者:
    Eley, Thalia C.
Food-related aversion in a female sample of people with anorexia nervosa: Cognitive-behavioural correlates, somatic and subjective anxiety, and early experiences.
神经性厌食症女性样本中与食物相关的厌恶:认知行为相关性、躯体和主观焦虑以及早期经历。
  • DOI:
    10.1016/j.appet.2022.106366
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    5.4
  • 作者:
    Simonazzi C
  • 通讯作者:
    Simonazzi C
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Valentina Cardi其他文献

An investigation of the specificity and vividness of autobiographical memories and future events produced in response to disgust-related cues among individuals with eating disorders
  • DOI:
    10.1186/s40337-025-01214-0
  • 发表时间:
    2025-02-24
  • 期刊:
  • 影响因子:
    4.500
  • 作者:
    Sevgi Bektas;Rowan Haslam;Shannon Hilton;Hubertus Himmerich;Valentina Cardi;Janet Treasure;Johanna Louise Keeler
  • 通讯作者:
    Johanna Louise Keeler
Advances in the use of virtual reality to treat mental health conditions
虚拟现实在治疗心理健康状况方面的应用进展
  • DOI:
    10.1038/s44159-024-00334-9
  • 发表时间:
    2024-07-10
  • 期刊:
  • 影响因子:
    21.800
  • 作者:
    Imogen H. Bell;Roos Pot-Kolder;Albert Rizzo;Mar Rus-Calafell;Valentina Cardi;Matteo Cella;Thomas Ward;Simon Riches;Martin Reinoso;Andrew Thompson;Mario Alvarez-Jimenez;Lucia Valmaggia
  • 通讯作者:
    Lucia Valmaggia
to implicit
隐含的
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Jenni Leppanen;Valentina Cardi;Y. Paloyelis;Andy Simmons;K. Tchanturia;Janet Treasure
  • 通讯作者:
    Janet Treasure
Efficacy of the ECHOMANTRA online intervention to support recovery from anorexia nervosa in adult patients: study protocol of a randomized controlled multi-center trial
  • DOI:
    10.1186/s40337-024-01166-x
  • 发表时间:
    2025-01-13
  • 期刊:
  • 影响因子:
    4.500
  • 作者:
    Yolanda Quiles;Álvaro Ruiz;Eva León-Zarceño;Javier Manchón;Marie-Carmen Neipp;Sofía Payá-López;Katina Kovacheva;Valentina Cardi
  • 通讯作者:
    Valentina Cardi
Easy to get, difficult to avoid: Behavioral tendencies toward high-calorie and low-calorie food during a mobile approach-avoidance task interact with body mass index and hunger in a community sample
容易获得,难以避免:在社区样本中,移动回避任务中对高热量和低热量食物的行为倾向与体重指数和饥饿感相互作用
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    5.4
  • 作者:
    E. Collantoni;V. Meregalli;Umberto Granziol;Cristiano Gerunda;H. Zech;P. Schroeder;E. Tenconi;Valentina Cardi;P. Meneguzzo;M. Martini;E. Marzola;G. Abbate;A. Favaro
  • 通讯作者:
    A. Favaro

Valentina Cardi的其他文献

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{{ truncateString('Valentina Cardi', 18)}}的其他基金

COVID BAME highlight: A collaborative approach to understand and remediate the impact of COVID19 on mental health in BAME communities: A pilot study
COVID BAME 亮点:了解和补救 COVID19 对 BAME 社区心理健康影响的协作方法:一项试点研究
  • 批准号:
    ES/W001330/1
  • 财政年份:
    2021
  • 资助金额:
    $ 30.13万
  • 项目类别:
    Research Grant

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