Chunk #218 — 3 Inverse solutions — 3.1 Non parametric optimization methods — 3.1.4 Shrinking methods and multiresolution methods — Adaptive standardized LORETA/FOCUSS (ALF)

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Review on solving the inverse problem in EEG source analysis.

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3. sLORETA (Equation(11)) is used to achieve a smooth solution. The source with maximum normalized power is selected as the centre point for spatial refinement in the next iteration, in which the next decimation ratio is applied. Successive iterations include sources within a spherical region at successively higher resolutions.