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LIFE synapses

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Long term Investigation of Functional Excitatory Synapses Linking Plasticity N...

Long term Investigation of Functional Excitatory Synapses Linking Plasticity Network Wiring and Memory Storage The nature of the physical substrate of memory – or engram – is probably one of the longest studied mysteries in neuroscience, and yet it still remains elusive. In recent years, the search for the engram has gained new momentum du... ver más

30/09/2022

UKE

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

UNIVERSITAETSKLINIKUM HAMBURGEPPENDORF No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2022-09-30

ERC-2016-STG: ERC Starting Grant

I+D

Cerrada hace 9 años

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

2 Participantes

UKE

1.50M€ | Lider

SEMILLEROS PERALES

428.84K€ | Participante

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Duración del proyecto: 69 meses Fecha Inicio: 2016-12-09
Fecha Fin: 2022-09-30

Líder del proyecto

UNIVERSITAETSKLINIKUM HAMBURGEPPENDORF No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto The nature of the physical substrate of memory – or engram – is probably one of the longest studied mysteries in neuroscience, and yet it still remains elusive. In recent years, the search for the engram has gained new momentum due to the possibilities of optogenetic activation and silencing of specific neurons in the brain. Recent studies suggest that the engram could be defined as the subset of neurons that is necessary and sufficient to cause recall of a specific memory when activated. But where is the engram when the neurons are not active? Most likely, ‘lasting alterations’ during memory formation are encoded in synaptic connections, forming a specific circuit that is able to trigger memory recall when active. This raises the possibility that the engram could be encoded in a pattern of altered synapses, not a pattern of cell bodies. Long-lasting potentiation or depression of synaptic efficacy is thought to underlie learning and memory formation suggesting that the engram could be stored in the strength of synapses. Yet, most excitatory synapses in the brain are highly plastic and show pronounced morphological dynamics. It is therefore not clear to what extent engrams can be stored in a network of synapses and how functional and structural changes of individual synapses contribute to the engram. The central aim of this proposal is to identify synapses participating in the engram and to study their morphological stability and pre- and postsynaptic functional properties. With novel optogenetic approaches and molecular markers we will investigate functional synapses in their native circuit over the time scale of weeks. By connecting functional long-term analysis of single synapses with morphological observations the proposed project will fill a wide gap in our understanding of how synapses encode and store information. I anticipate that my work will transform our knowledge about the location and mechanism of memory storage in the brain.

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