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Content archived on 2024-06-18

A Bayesian Model of EEG Source Dynamics and Effective Connectivity

Objective

This project addresses two methodological challenges pertinent to cognitive brain imaging: Estimating the time varying neural generators of electric/magnetic field recordings on the surface of the scalp, and estimating the time varying effective connectivity between these neural generators. Recent theoretical models of perception adopt a generative approach to perception, whereby stimulus processing is controlled by top-down influences that create predictions about forthcoming events. In some cases, these top-down influences can lead to perceptual errors or inflation of affective experience. The extent and nature of these modulations, as well as their neural dynamics, are still to be determined. These mechanisms are key in a wide variety of phenomena including normal decision-making, social behaviour, and mental health. We propose to utilise the dynamics of anticipatory responses preceding a stimulus to investigate these mechanisms. We have shown that anticipatory neural processes preceding pain correlate with the intensity of the pain experience. However, the spatial distribution of these activities varies during the course of anticipation and is not precisely time locked to the anticipation cues. Current methods for source reconstruction of anticipatory responses do not take into account the dynamics of the generating networks. We propose to develop a dynamical network model that estimates the sources of the EEG and their connectivity, simultaneously. The proposed dynamical network model is capable of estimating the spatial characteristics of the EEG sources, together with their temporal and connectivity characteristics. This represents a major leap forward to understand the causal mechanisms of brain function as it gives rise to perception and a substantial contribution to tools available for source and connectivity analyses. This will benefit neuroscience researchers who wish to apply the principles involved in the source model to their own areas of research.

Fields of science (EuroSciVoc)

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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.

Call for proposal

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

FP7-PEOPLE-2009-IEF
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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.

MC-IEF - Intra-European Fellowships (IEF)

Coordinator

THE UNIVERSITY OF MANCHESTER
EU contribution
€ 173 403,20
Address
OXFORD ROAD
M13 9PL Manchester
United Kingdom

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Region
North West (England) Greater Manchester Manchester
Activity type
Higher or Secondary Education Establishments
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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.

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