Project description
Collective decision-making in zebrafish: behavioural algorithms and neural mechanisms
People are not the only animals to make collective decisions that impact outcomes for the whole. Such decision-making is witnessed in swarming honeybees, flocks of birds and shoals of fish. However, little is known about how they do this. The European Research Council-funded CollectiveDecisions project will harness the well-characterised, experimentally accessible and cognitively active juvenile zebrafish as a model system in which to study the neural basis of collective decision-making in animals. The study will include closed-loop virtual reality experiments, measurements of brain activity in restrained and freely swimming fish, and targeted laser ablation and optogenetic activation to link neural circuit function to group decision-making performance.
Objective
It is challenging for isolated animals to reliably extract and integrate behaviorally relevant information from the natural environment. Due to the limited sensory capacity of individuals, many animal species therefore share and evaluate cues collectively, allowing them to solve complex decision-making tasks as a group. The behavioral algorithms and neural mechanisms that give rise to these cognitive abilities remain poorly understood. In many fish species, these behaviors are largely vision-based, providing the opportunity to decipher the underlying general computational principles under well-controlled experimental conditions in the lab. At the same time, it is becoming possible to employ powerful neuroscientific techniques, enabling new detailed analyses of the neural circuitry that orchestrates behavior. I propose to establish the juvenile zebrafish as a model system that is optimally suited for the study of collective decision-making. At this intermediate developmental stage, zebrafish offer an excellent compromise between cognitive ability and experimental accessibility. They can temporally and spatially integrate information, they start to socially interact, and one can characterize and manipulate brain activity in intact behaving animals. Using closed-loop virtual reality experiments, I will initially dissect the algorithmic rules by which juvenile zebrafish make decisions when swimming in heterogeneously biased groups. I will then characterize brain activity related to this behavior, in freely swimming fish, and in restrained preparations. Finally, to causally link neural circuit function and group decision-making performance, I will carry out targeted laser ablation and optogenetic activation experiments. Thus, my proposed research in juvenile zebrafish will, for the first time, provide key insights into the behavioral algorithms and neural mechanisms of how individual animals and animal collectives acquire sensory information and make complex decisions.
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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HORIZON.1.1 - European Research Council (ERC)
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Topic(s)
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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.
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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.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2022-STG
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78464 Konstanz
Germany
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