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Abstract #2848

Time-Varying Functional Connectivity of the Hippocampus Is Associated With Cognitive Performance in Multiple Sclerosis Patients

Paola Valsasina1, Olga Marchesi1, Carmen Vizzino1, Damiano Mistri1, Maria Assunta Rocca1,2,3, and Massimo Filippi1,2,3,4,5
1Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy, 2Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy, 3Vita-Salute San Raffaele University, Milan, Italy, 4Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy, 5Neurophysiology Service, IRCCS San Raffaele Scientific Institute, Milan, Italy

Synopsis

Keywords: Brain Connectivity, Multiple SclerosisIn this study, we explored hippocampal static and time-varying functional connectivity and its association with cognition in patients with multiple sclerosis. We found decreased static and time-varying connectivity of the hippocampus with temporo-parietal regions, and increased connectivity of the hippocampus with pre- and postcentral gyri, inferior temporal gyrus, precuneus and frontal regions. Better visuospatial and verbal memory were associated with higher hippocampal time-varying connectivity with precentral and inferior temporal gyri, while better attention scores were associated with higher hippocampal time-varying connectivity with the superior frontal cortex.

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