app-head-pos

APP UNDER DEVELOPMENT private app on bl

This App aims at writing a head position file (.pos), which can be used in app-bad-channels and app-maxfilter. To do so, several MNE Python functions are used (see https://mne.tools/stable/auto_tutorials/preprocessing/59_head_positions.html#sphx-glr-auto-tutorials-preprocessing-59-head-positions-py).

GitHub repository

https://github.com/AuroreBussalb/app-head-pos

Brainlife datatype used:

For input: neuro/meg/fif
For outputs: neuro/meg/fif-override

Input of the App

Files	Format	Datatype	Description	Optional

Files	Format	Datatype	Description	Optional
MEG signals	.fif	meg/fif	The file must contain cHPI info	No

Output of the App:

File	Format	Datatype	Description	Optional

File	Format	Datatype	Description	Optional
Head position file	.pos	meg/fif-override	Head position file data	No

Besides, in the output directory, there are the optional files that can be used in a next App. This is mandatory, because the App that will be run after app-head-pos can take as input all the files in app-head-pos’s output directory corresponding to the datatype of the input of the next App (see How to run Apps one after another).

At ICM, the cHPI are not recorded because it generates artifacts around 7Hz. So this App can’t be run on data registered at the ICM.

Parameters of the App

The parameters of the App correspond to the parameters passed to the Python functions used in the App. Their default values proposed in Brainlife or in config.json.example correspond to the default values of MNE Python 0.23.

Next improvements

Run this App on data that contain cHPI
Rename this app into a more explicit name (“app-compute-continuous-head-position”?)
Make sure that it is okay to run this app after of before app-mean-transformation-matrix, the order must not matter.