Chunk #137 — 3 Inverse solutions — 3.1 Non parametric optimization methods — 3.1.1 The Bayesian framework — Quadratic regularization and spatial regularization (S-MAP) using dipole intensity gradients

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Review on solving the inverse problem in EEG source analysis.

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Spatial regularization is a modification of Quadratic regularization. It is an inversion procedure based on a non-quadratic choice for L(D) which makes the estimator become non-linear and more suitable to detect intensity jumps [27].