mne.chpi.extract_chpi_locs_ctf

mne.chpi.extract_chpi_locs_ctf(raw, verbose=None)[source]

Extract cHPI locations from CTF data.

Parameters
rawinstance of Raw

Raw data with CTF cHPI information.

verbosebool, str, int, or None

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

Returns
chpi_locsdict

The time-varying cHPI coils locations, with entries “times”, “rrs”, “moments”, and “gofs”.

Notes

CTF continuous head monitoring stores the x,y,z location (m) of each chpi coil as separate channels in the dataset:

  • HLC001[123]\\* - nasion

  • HLC002[123]\\* - lpa

  • HLC003[123]\\* - rpa

This extracts these positions for use with compute_head_pos().

New in version 0.20.

Examples using mne.chpi.extract_chpi_locs_ctf