MULTIMOSSY

Multimodal mossy fiber input and its role in information processing in the cerebellar granule cell layer

 Coordinatore UNIVERSITY COLLEGE LONDON 

 Organization address address: GOWER STREET
city: LONDON
postcode: WC1E 6BT

contact info
Titolo: Ms.
Nome: Malgorzata
Cognome: Kielbasa
Email: send email
Telefono: 4420310000000
Fax: 442078000000

 Nazionalità Coordinatore United Kingdom [UK]
 Totale costo 221˙606 €
 EC contributo 221˙606 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2012-IEF
 Funding Scheme MC-IEF
 Anno di inizio 2013
 Periodo (anno-mese-giorno) 2013-09-01   -   2015-08-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITY COLLEGE LONDON

 Organization address address: GOWER STREET
city: LONDON
postcode: WC1E 6BT

contact info
Titolo: Ms.
Nome: Malgorzata
Cognome: Kielbasa
Email: send email
Telefono: 4420310000000
Fax: 442078000000

UK (LONDON) coordinator 221˙606.40

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

distinct    nuclei    gcs    inputs    gocs    cell    structure    relatively    cerebellar    network    integration    connectivity    signals    synaptic    motor    cells    brain    networks    granule    gcl    chr    mfs    sensory    precerebellar    cortex   

 Obiettivo del progetto (Objective)

'Synaptic connectivity within and between neurons in brain networks determines the flow of information, how signals are combined and how they are transformed. However, our understanding of information processing in brain networks remains poor. The cerebellar cortex is an attractive model to study network processing because it consist of relatively few, well defined cell types and a relatively simple structure. The cerebellum is involved in motor coordination, and the maintenance of balance. It receives both sensory and motor inputs and integrates this information to perform its function. However, at the cellular level, the specific connectivity of mossy fibres (Mfs; the major input to the cerebellar cortex) and their integration is uncertain. This proposal focuses on Mfs arising from different precerebellar nuclei conveying both sensory information and motor command signals. Mfs contact Golgi cells (GoCs) and granule cells (GCs) in the cerebellar granule cell layer (GCL). However, the connectivity rules, and thus the integration of different Mf inputs onto these cells remain poorly understood. To tackle this question, I propose a multidisciplinary approach based on electrophysiology, optogenetics, 2-photon microscopy and network modelling. I will describe the functional connectivity between Mfs and GoCs and GCs by infecting distinct precerebellar nuclei with Channelrhodopsin (ChR)-expressing adeno-associated viruses to label and activate Mfs. I will measure the synaptic weight and plasticity of these connections. Using variants of ChR activated by distinct wavelengths, I will examine whether individual GoCs and GCs receive multimodal information from distinct nuclei. The results will be included in a detailed 3D network of the GCL and spatio-temporal dynamics and processing by the network will be investigated. This work will provide an important conceptual advance in our understanding of information processing in a major cortical structure in the mammalian brain.'

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