Project description
New biological insight into stress-related anxiety
Everyday stress may have a different impact on people, and some experience pathological responses, such as anxiety and depression. It is well established that anxiety correlates with the response of dopamine neurons to the stress-induced corticotropin-releasing hormone. The EU-funded MotiVTA project will work on two emerging neuronal pathways that also influence anxiety. The balance between these pathways seems to affect dopamine release and drive motivation in response to stress. Researchers will employ a variety of approaches to monitor and manipulate the activity of these pathways and elucidate their engagement in anxiety response.
Objective
In our daily life, we face many challenges that create stressful situations. Some individuals experience stress as motivational drive, whereas in others, it can reduce motivation and trigger avoidance behavior. Pathological responses to stress, such as depression and anxiety, take an enormous toll on society. Despite the relevance of stress on mental health, little is understood about the neuronal circuit mechanisms that underlie the behavioral differences in stress responsivity and why some individuals are more resilient to the negative impact of stress than others. The mesolimbic dopamine system plays a major role in the stress response. Work in the host lab found that trait anxiety influences how an individual’s motivated behaviors change with stress and that the anxiety level correlates with differences in the response of dopamine neurons in the ventral tegmental area (VTA) to the stress-induced neuropeptide CRH. Recently, two parallel pathways from the basal nucleus of stria terminalis (BNST) to the VTA –one glutamatergic and the other GABAergic– have been identified and are thought to influence anxiety and motivated behaviors. However, solid evidence linking activity in these pathways to behavioral outcomes is lacking. The goal of this proposal is to monitor and manipulate the activity of these pathways using a combination of optogenetics, calcium imaging, and behavioral testing. I hypothesize that the glutamatergic and GABAergic BNST-VTA pathways are differentially engaged during stress. The balance between these pathways modulates dopamine release from the VTA, which then determines whether an individual would experience increased or decreased motivation in response to stress. I will first determine the natural activity pattern of VTA-projecting BNST neurons and then investigate the consequences of activation or inhibition of this circuit on motivated behaviors and the role of CRH in the modulation of this circuit using genetic tools and neuropharmacology.
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.
- natural sciences biological sciences neurobiology
- medical and health sciences clinical medicine clinical neurology
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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.
1015 LAUSANNE
Switzerland
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.