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Neural circuit function in the retina of mice and humans

Objectif

The mammalian brain is assembled from thousands of neuronal cell types that are organized into distinct circuits to perform behaviourally relevant computations. To gain mechanistic insights about brain function and to treat specific diseases of the nervous system it is crucial to understand what these local circuits are computing and how they achieve these computations. By examining the structure and function of a few genetically identified and experimentally accessible neural circuits we plan to address fundamental questions about the functional architecture of neural circuits. First, are cell types assigned to a unique functional circuit with a well-defined function or do they participate in multiple circuits (“multitasking cell types”), adjusting their role depending on the state of these circuits? Second, does a neural circuit perform “a single computation” or depending on the information content of its inputs can it carry out radically different functions? Third, how, among the large number of other cell types, do the cells belonging to the same functional circuit connect together during development? We use the mouse retina as a model system to address these questions. Finally, we will study the structure and function of a specialised neural circuit in the human fovea that enables humans to read. We predict that our insights into the mechanism of multitasking, network switches and the development of selective connectivity will be instructive to study similar phenomena in other brain circuits. Knowledge of the structure and function of the human fovea will open up new opportunities to correlate human retinal function with human visual behaviour and our genetic technologies to study human foveal function will allow us and others to design better strategies for restoring vision for the blind.

Appel à propositions

ERC-2010-StG_20091118
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Régime de financement

ERC-SG - ERC Starting Grant

Institution d’accueil

FRIEDRICH MIESCHER INSTITUTE FOR BIOMEDICAL RESEARCH FONDATION
Contribution de l’UE
€ 1 499 000,00
Adresse
MAULBEERSTRASSE 66
4058 Basel
Suisse

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Région
Schweiz/Suisse/Svizzera Nordwestschweiz Basel-Stadt
Type d’activité
Research Organisations
Contact administratif
Searles Dorothy (Mrs.)
Chercheur principal
Botond Roska (Dr.)
Liens
Coût total
Aucune donnée

Bénéficiaires (2)