Skip to main content
Go to the home page of the European Commission (opens in new window)
English English
CORDIS - EU research results
CORDIS

In vivo dynamics and plasticity of networks within CA3 of the hippocampus: effects of optogenetic stimulation and natural learning.

Objective

The CA3 subregion of the hippocampus is crucial for the formation of episodic memories on a short timescale, possibly due to synaptic plasticity in the recurrent connections between pyramidal cells. Previously, in vivo observations of these changes due to a learning event were elusive; however, in the current proposal we will use new methods to allow us to observe and manipulate the changes that occur in cells and synapses correlated with memory formation. To achieve this, we will combine optogenetic stimulation techniques with both intra- and extracellular in vivo electrophysiology to measure cellular properties, network dynamics, and both artificially- and naturally-induced synaptic plasticity. Additionally, we will restrict optogenetic expression to only those cells involved in the memory, allowing us to selectively identify and manipulate these cells. Stimulation of a subset of CA3 pyramidal cells while recording the intracellular trace from an individual CA3 pyramidal cell will provide the first insights into the nature of the recurrent network in vivo; incorporating stimulation protocols designed to induce synaptic plasticity will allow us to characterize different forms of plasticity in vivo. Adding stimulation of DG inputs to this protocol will allow us to measure the modulation of both activity and synaptic plasticity. Finally, we will test the effect of natural learning on the CA3 network, by recording extracellular activity in vivo, and taking measurements of cellular properties and synapse strength ex vivo. This project will allow us, for the first time, to link the single-synapse changes hypothesized to be crucial for memory with whole-animal learning.

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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.

You need to log in or register to use this function

Programme(s)

Multi-annual funding programmes that define the EU’s priorities for research and innovation.

Topic(s)

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

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.

MSCA-IF-EF-ST - Standard EF

See all projects funded under this funding scheme

Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) H2020-MSCA-IF-2015

See all projects funded under this call

Coordinator

UNIVERSITE DE BORDEAUX
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 173 076,00
Address
PLACE PEY BERLAND 35
33000 BORDEAUX
France

See on map

Region
Nouvelle-Aquitaine Aquitaine Gironde
Activity type
Higher or Secondary Education Establishments
Links
Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 173 076,00
My booklet 0 0