Project description
Does junk food modify our brain?
Obesity is one of the greatest public health challenges of the 21st century. Its prevalence has tripled in Europe since the 1980s. What is more, the numbers of those affected continue to rise, particularly among children. Excessive consumption of junk food plays a central role in the development of obesity. The EU-funded REBOST project will explore the neurological mechanisms by which such consumption of junk food negatively affects the reward system. It will investigate the neuronal and behavioural alterations in sensitivity to rewards beyond conditioned food and sex rewards. Unique behavioural design and in vivo techniques will be used. The project will be able to study real-time neuronal activation and behavioural effects during all phases of reward, from expectation to approach to consummatory behaviour.
Objective
The prevalence of obesity worldwide continues to increase dramatically: 39% of adults are now overweight or obese. Excessive consumption of highly palatable sugar and fat laden foods, often referred to as “junk foods”, plays a central role in the development of obesity, possibly by dysregulating the brain reward system. The REBOST project aims to investigate the neurological mechanisms by which excessive junk food consumption adversely affects the reward system. I hypothesise that excessive junk food consumption desensitises the reward system, which alters responses to different intrinsic rewards. This project is innovative in that it investigates the neuronal and behavioural alterations in sensitivity to rewards beyond conditioned food rewards, by also studying the responses towards a secondary intrinsic (sexual) reward. This will be achieved by using a unique behavioural design and advanced in vivo techniques (fibre photometry, dLight1 and chemogenetics). This protocol allows to simultaneously investigate real-time neuronal activation and behavioural effects during all distinct phases of reward: i) expectation, ii) approach and iii) consummatory behaviour. Another highlight of the project is the use of the Cafeteria Diet model (CAF). CAF mimics human behaviour more accurately than other models, by feeding rats a choice of the same unhealthy, but palatable products as humans. By integrating complementary expertise on CAF and food reward from the ER and on sexual behaviour and the advanced techniques from the host, the project will unravel the effects of CAF on the specific brain reward projections from the Prefrontal Cortex to the Ventral Tegmental Area. This will contribute to explain the underlying mechanisms of the development of obesity and the vulnerability of the brain reward system, which will open up new strategies for biomedical research and therapeutic applications, both for obesity and addiction.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2019
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
9019 Tromso
Norway
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.