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CourtEscape

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Neural Mechanisms of Action Selection During Sensory Conflict

Prioritising the most urgent goal according to the context and physiological needs is crucial for the success of any organism. Action-selection processes are often disrupted in neuropathologies, such as Parkinson's disease, Alzhei... ver más

31/08/2024

UoB

213K€

Presupuesto del proyecto: 213K€

Líder del proyecto

THE UNIVERSITY OF BIRMINGHAM No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2024-08-31

MSCA-IF-2020: Individual Fellowships

I+D

Cerrada hace 4 años

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Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

UoB

212.93K€ | Lider

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Duración del proyecto: 41 meses Fecha Inicio: 2021-03-26
Fecha Fin: 2024-08-31

Líder del proyecto

THE UNIVERSITY OF BIRMINGHAM No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 213K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Prioritising the most urgent goal according to the context and physiological needs is crucial for the success of any organism. Action-selection processes are often disrupted in neuropathologies, such as Parkinson's disease, Alzheimer's disease and addiction; however, the underlying neuronal mechanisms are not well understood. Crucially, how the brain evaluates sensory conflicting options and selects an appropriate action remains unknown. I will tackle this question using a novel assay in which Drosophila fruit fly males are confronted with visual threats during courtship, which creates a conflict between survival and reproduction. Capitalising on refined genetic tools, I aim to unravel neural mechanisms that govern the selection between competing options. I will carry out a behavioural screen to identify neurons that allow the fly to choose between courting a mate and escaping a threat. From an in silico screen of Gal4 fly lines targeting defined cells, I will select lines based on their potential connectivity with courtship-command neurons. Using optogenetic tools, I will identify neurons that, when activated or inhibited, prevent males from blocking courtship in response to the threat. Next, I will ask if these cells respond to the threat in live Ca2+ imaging studies, and test if they are linked with the courtship circuitry using pre and post-synaptic markers and GRASP (to test potential synaptic connections). To probe if candidate neurons are functionally linked, I will manipulate the activity of upstream cells, and test the responses in downstream cells with Ca2+ imaging. This will allow me to build a map of the neural network of action-selection. Finally, I will test how external and internal state variables modulate action-selection. This study will provide insights into fundamental brain processes that may work in other animals, including humans.

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