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IN-Fo-trace-DG SIGNED

Role of GABAergic interneurons in the formation of new memory traces in the Dentate Gyrus ofbehaving mice

Total Cost €

0

EC-Contrib. €

0

Partnership

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 IN-Fo-trace-DG project word cloud

Explore the words cloud of the IN-Fo-trace-DG project. It provides you a very rough idea of what is the project "IN-Fo-trace-DG" about.

learning    analyze    granule    gyrus    cell    temporal    disciplinary    interconnectivity    individual    virtual    changing    cortical    examine    differently    emerge    ones    brain    group    dg    association    theories    memory    spatial    space    time    discrete    little    recruitment    question    fundamental    neurons    progress    interference    adult    constraints    difficult    unknown    innovative    patterns    inhibition    optogenetic    intensive    assembly    principal    modifications    population    populations    signals    suggest    largely    inhibitory    first    excitation    fo    neuronal    trace    vivo    cells    organisms    dependent    molecular    gcs    tools    associations    recordings    form    photon    synapses    output    visualize    acquisition    interneurons    gabaergic    processed    insights    ins    mature    made    environment    born    excitatory    networks    traces    mechanisms    balance    plasticity    memories    imaging    cellular    adapt    despite    area    structure    dentate   

Project "IN-Fo-trace-DG" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITAETSKLINIKUM FREIBURG 

Organization address
address: HUGSTETTER STRASSE 49
city: FREIBURG
postcode: 79106
website: n.a.

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 2˙463˙693 €
 EC max contribution 2˙463˙693 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-ADG
 Funding Scheme ERC-ADG
 Starting year 2018
 Duration (year-month-day) from 2018-10-01   to  2023-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAETSKLINIKUM FREIBURG DE (FREIBURG) coordinator 2˙463˙693.00

Map

Leaflet | Map data © OpenStreetMap contributors, CC-BY-SA, Imagery © Mapbox

 Project objective

Despite intensive study in the past on the problem of how information is processed in the brain to enable individual organisms to adapt to their continuously changing environment, little progress has been made on how new similar but discrete memory traces emerge in neuronal networks during learning. Current theories suggest that experience-dependent modifications in excitation-inhibition balance enable a selected group of neurons to form a new cell association during learning which represent the new memory trace. It was further proposed that particularly GABAergic inhibitory interneurons (INs) have a large impact on population activity in neuronal networks by means of their inhibitory output synapses. However, how cell associations emerge in space and time and how INs may contribute to this process is still largely unknown. This complex topic was so far difficult to address due to technical constraints. IN-Fo-Trace-DG aims to address this fundamental question in the dentate gyrus (DG), a brain structure essential for the acquisition of similar but discrete new memories. Based on our detailed knowledge on DG’s cellular elements, their interconnectivity and our recently established molecular interference tools, we will first, visualize the spatial and temporal activity patterns of cell populations during spatial learning in a virtual-reality using 2-Photon imaging. Second, we will determine the role of IN recruitment and plasticity in assembly formation by optogenetic and molecular interference. Third, we will analyze changes in excitatory and inhibitory signals in granule cells (GCs), the principal cells in this brain area, and INs during learning using whole-cell recordings in vivo. Finally, we will examine whether adult-born GCs contribute differently to learning-associated population activity compared to mature ones in the adult DG. This innovative multi-disciplinary approach will provide new insights on the mechanisms of new memory formation in cortical networks.

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