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An immersive, versatile fish VR for studying whole-brain circuits during naturalistic experience of complex and flexible behaviours in the adult vertebrate

Project description

Using VR to understand adult vertebrate behavioural selection

Animals adapt to complex environments, but neuroscience often relies on simple, artificial stimuli and focuses on limited brain regions. This approach restricts our understanding of how different cell types work together to enable adaptive behaviour in natural settings. Supported by the Marie Skłodowska-Curie Actions programme, the FISH-VR project will use the transparent micro glassfish Danionella cerebrum (DC) for brain-wide calcium imaging. Tethered adult Danionella will navigate a complex virtual environment under naturalistic closed-loop and partial open-loop conditions. The project aims to identify the cellular and network correlates of motor adaptation in adult vertebrates, enhancing our understanding of behaviour selection and laying the groundwork for future studies on brain circuits involved in experience-dependent and context-dependent behaviours.

Objective

Animals navigate through complex, ever-changing environments, and can adapt to dramatic variations in their sensory inputs, internal states, and the effects of their motor outputs across different contexts. Despite the complexity of the natural environments in which brains evolved, most experiments in neuroscience use simple, artificial stimuli that are designed to evoke specific types of behaviour and neural activity, but are a poor facsimile of reality. Furthermore, most neural recording studies focus on single or few brain regions, and thus ignore the importance of interactions across the brain, especially during complex behaviours. Such hampered experimental approaches have been proven unsuccessful to reveal how diverse cell types across the nervous system interact to produce adaptive behaviour in complex, naturalistic environments. Here, I propose to address these challenges, to contribute to an improved understanding of how the brain works flexibly at large scale, when tackling a sensorimotor task. I will take advantage of the new animal model I established as a PhD student (the small, transparent micro glassfish Danionella cerebrum (DC)), and the techniques I learned and established as a postdoctoral fellow (whole-brain cellular-level calcium imaging, and a virtual reality arena system that allows to reversibly head-tether fish). I propose to conduct brain-wide calcium imaging from tethered adult Danionella as they gauge their behaviour during naturalistic closed-loop and partial open-loop controlled exploration in a complex and immersive virtual environment. My unique expertise will be essential to determine the cellular and network correlates of motor adaptation in an adult vertebrate, to advance our fundamental insight on the neurobiology of behaviour selection, and to establish a research program for exploring brain circuits for experience-dependent behaviours and context-dependent adaptation in the future.

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HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

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(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

SORBONNE UNIVERSITE
Net EU contribution

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.

€ 242 260,56
Address
21 RUE DE L'ECOLE DE MEDECINE
75006 PARIS
France

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Region
Ile-de-France Ile-de-France Paris
Activity type
Higher or Secondary Education Establishments
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Total cost

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