mne.make_sphere_model(r0=(0.0, 0.0, 0.04), head_radius=0.09, info=None, relative_radii=(0.9, 0.92, 0.97, 1.0), sigmas=(0.33, 1.0, 0.004, 0.33), verbose=None)[source]

Create a spherical model for forward solution calculation.

r0 : array-like | str

Head center to use (in head coordinates). If ‘auto’, the head center will be calculated from the digitization points in info.

head_radius : float | str | None

If float, compute spherical shells for EEG using the given radius. If ‘auto’, estimate an appropriate radius from the dig points in Info, If None, exclude shells (single layer sphere model).

info : instance of Info | None

Measurement info. Only needed if r0 or head_radius are 'auto'.

relative_radii : array-like

Relative radii for the spherical shells.

sigmas : array-like

Sigma values for the spherical shells.

verbose : bool, str, int, or None

If not None, override default verbose level (see mne.verbose() and Logging documentation for more).

sphere : instance of ConductorModel

The resulting spherical conductor model.


New in version 0.9.0.