Multimodal Imaging
Simultaneous EEG-fMRI
Simultaneous acquisition of Electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) enables studying of brain function with high spatial resolution of fMRI and high temporal resolution of EEG. The complementary characteristics of the two modalities have made simultaneous EEG-fMRI into a rapidly growing neuroimaging technique with a wide range of cognitive and clinical applications. Despite major improvements during the short history of EEG-fMRI, several technical and methodological challenges still remain. Part of Nasim Sham's research is focused on evaluating and improving MR related artifacts in the simultaneously recorded EEG data. Another open question in the field of EEG-fMRI is the optimal choice of measures and techniques for data integration. To address this question, she is investigating the application of multivariate techniques for EEG-fMRI data integration. Nasim is currently applying these techniques to explore the relationship between various aspects of the brain’s electrophysiological activity (i.e. the transient evoked activity, oscillatory evoked activity and spontaneous oscillatory activity) and the associated hemodynamic response in the context of sensory and cognitive (memory) processes of the brain.
Simultaneous acquisition of Electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) enables studying of brain function with high spatial resolution of fMRI and high temporal resolution of EEG. The complementary characteristics of the two modalities have made simultaneous EEG-fMRI into a rapidly growing neuroimaging technique with a wide range of cognitive and clinical applications. Despite major improvements during the short history of EEG-fMRI, several technical and methodological challenges still remain. Part of Nasim Sham's research is focused on evaluating and improving MR related artifacts in the simultaneously recorded EEG data. Another open question in the field of EEG-fMRI is the optimal choice of measures and techniques for data integration. To address this question, she is investigating the application of multivariate techniques for EEG-fMRI data integration. Nasim is currently applying these techniques to explore the relationship between various aspects of the brain’s electrophysiological activity (i.e. the transient evoked activity, oscillatory evoked activity and spontaneous oscillatory activity) and the associated hemodynamic response in the context of sensory and cognitive (memory) processes of the brain.
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Rotman Research Institute | Baycrest
3560 Bathurst Street, North York Ontario, Canada M6A 2E1 |
