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Abstract #0443

Dynamic changes of Resting State Networks depict short-term plasticity of the brain

Gloria Castellazzi 1,2 , Fulvia Palesi 2,3 , Stefania Bruno 4 , Ahmed T. Toosy 5 , Egidio D'Angelo 2,6 , and Claudia A.M. Wheeler-Kingshott 7

1 Department of Industrial and Information Engineering, University of Pavia, Pavia, PV, Italy, 2 Brain Connectivity Center, National Neurological Institute C.Mondino, Pavia, PV, Italy, 3 Department of Physics, University of Pavia, Pavia, PV, Italy, 4 Overdale Hospital, Jersey, United Kingdom, 5 Department of Brain Repair and Rehabilitation, UCL Institute of Neurology, London, United Kingdom, 6 Department of Public Health, Neuroscience, Experimental Medicine, University of Pavia, Pavia, PV, Italy, 7 NMR Research Unit, Department of Neuroinflammation, Queen Square MS, UCL Institute of Neurology, London, Italy

During the execution of complex continuous cognitive tasks, the brain elaborates information over multiple domains and time scales, integrating it across space and over time. In literature, only few rs-fMRI works report how resting state networks (RSNs) change over space and time when stimulated by external inputs. We investigated the dynamic changes in brain activity occurring in subjects listening to a narrated story. Results show that RSNs respond to the stimulus with specific dynamics of alteration and suggest the existence of a spatiotemporal hierarchy of changes, the levels of which depend on the specific activity each network is involved in.

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