Project description
Drosophila flight: from sensory input to behavioural response
The neural mechanisms connecting incoming sensory information and behavioural response are not well understood in most organisms. The European Research Council-funded MOBY-FLY project will investigate neural mechanisms in body saccades of fruit flies, a widely used model system. A body saccade is a quick, intermittent turning behaviour during flight, a change of direction in response to certain stimuli. Since this behaviour can be replicated in head-fixed flying flies, neuronal activity can be recorded simultaneously. MOBY-FLY will build on previous identification of a neuron whose activity is strongly correlated with saccadic turns during head-fixed flight. Combining manipulation of sensory input and genetics with recording of neuronal activity will shed light on the pathway from sensory input to behavioural response.
Objective
While sensory systems report sensory input with high reliability, behavioural responses are inherently variable. How this variability arises and how behavioural decisions are formed, is not well understood in any organism. I will use the fruit fly Drosophila as a model system to study how a specific behaviour is initiated depending on external stimuli and behavioural state. During flight, flies change direction to avoid dangers or search for food with a fast turning response called saccade. This behaviour can be replicated in head-fixed flying flies, where saccades are measured as fast changes in wing stroke amplitude, which allows for simultaneous recordings of neuronal activity. However, the neuronal circuits underlying the execution of saccades in the fly brain are not known. Previously, I have discovered a descending neuron, whose activity is strongly correlated with saccadic turns during head-fixed flight. I will use novel anatomical tools and the available EM data sets to find the neurons, which provide input to this descending neuron and which control saccades. I will then record their activity using both 2-photon Calcium imaging of a genetically encoded indicator and whole-cell patch-clamp recordings during flight. At the same time, I will present a panel of multisensory stimuli, while monitoring turning behaviour. This will allow me to test under which stimulus conditions and internal states these neurons are active and whether their activity is more closely correlated with sensory input or behavioural output. To test for the contribution of these neurons to the execution of saccades, I will use genetic tools to manipulate their activity during tethered as well as free flight. This comprehensive approach will allow me to study, which neurons control saccadic turns and at which processing stage behavioural decisions are made and will provide general insights into how information is processed along the sensory-to-motor pathway and how behaviour is initiated.
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 chemical sciences inorganic chemistry alkaline earth metals
- agricultural sciences agriculture, forestry, and fisheries agriculture horticulture fruit growing
- medical and health sciences basic medicine neurology stroke
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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.
Funding Scheme
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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-2021-STG
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80539 Munchen
Germany
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