Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_headmodel_asa”.
FT_HEADMODEL_ASA reads a volume conduction model from an ASA *.vol file ASA is commercial software (http://www.ant-neuro.com) that supports among others the boundary element method (BEM) for EEG. This function allows you to read an EEG BEM volume conduction model from an ASA format file (*.vol) and use that for leadfield computations in MATLAB. Constructing the geometry of the head model from an anatomical MRI and the computation of the BEM system are both handled by ASA. Use as headmodel = ft_headmodel_asa(filename) See also FT_PREPARE_VOL_SENS, FT_COMPUTE_LEADFIELD