Shamo: A tool for electromagnetic modeling, simulation and sensitivity analysis of the head

TL;DR

Shamo is a tool designed for electromagnetic head modeling that enables sensitivity analysis and uncertainty assessment of tissue parameters, improving the accuracy of EEG and tDCS simulations.

Contribution

It introduces a novel tool that performs electromagnetic modeling, sensitivity analysis, and uncertainty quantification of head tissue parameters for EEG and tDCS applications.

Findings

Enables assessment of model parameter uncertainty

Provides parametric EEG forward solutions

Supports current distribution analysis for tDCS

Abstract

Accurate electromagnetic modeling of the head of a subject is of main interest in the fields of source reconstruction and brain stimulation. Those processes rely heavily on the quality of the model and, even though the geometry of the tissues can be extracted from magnetic resonance images (MRI) or computed tomography (CT), their physical properties such as the electrical conductivity are hard to measure with non intrusive techniques. In this paper, we propose a tool to assess the uncertainty in the model parameters as well as compute a parametric electroencephalography (EEG) forward solution and current distribution for transcranial direct current stimulation (tDCS).