Diagnostic Evaluation of Dementia with Lewy Bodies Using a Multimodal Approach

Study population: Observational prospective cohort study including over 24 months at the GHU AP-HP. Nord Lariboisière, Cognitive Neurology Center : 50 probable DLB patients, 50 AD patients, and 30 control subjects with subjective cognitive impairment but without any element in favor of neurodegenerative disorders. Total clinical dataset n= 130. Act : * 32-electrode EEG (resting state, passive auditory and active visual task). * 4 dry electrode EEG cap simultaneously with the 32-electrode EEG Expected results: Improved DLB diagnosis performance using a combination of multimodal biomarkers (EEG, cognitive scores, plasma, brain MRI).