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. 2020 Dec 10;2(2):fcaa212. doi: 10.1093/braincomms/fcaa212

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© The Author(s) (2020). Published by Oxford University Press on behalf of the Guarantors of Brain.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Source identification, ERP grand means for patients and controls, and exemplary patient DCM fits. (A) Bilateral four-source model identified using 3D source reconstruction for the priming task. Colour bar indicates Z scores. (B) Bilateral six-source model identified using 3D source reconstruction for the recognition task. Colour bar indicates Z scores. (C) Uncoregistered EEG sensor positions; front-right side view (top) and top view (bottom). Approximate location of channel PO4 circled in white. (D) Grand mean of controls (top) and patients (bottom), showing ERPs for averaged novel (magenta) and repeated trials (green) in the priming task for channel PO4 (right OCP). (E) Grand mean of controls and patients, showing ERPs for averaged novel and repeated trials in the recognition task for channel PO4. (F) DCM fits (solid line) and real data (dashed line) from the first mode of an exemplary Alzheimer’s disease patient in the priming (top) and recognition (bottom) tasks. AD = Alzheimer’s disease; L = left; R = right; MNI = Montreal Neurological Institute.