Don't perform ICA cleaning on raw data by default when epochs are present

docs/source/v1.9.md.inc

@@ -2,15 +2,22 @@
 
 ### :new: New features & enhancements
 
-- Added number of subject to `sub-average` report (#902, #910 by @SophieHerbst)
+- Added number of subjects to `sub-average` report (#902, #910 by @SophieHerbst)
 - The type annotations in the default configuration file are now easier to read: We
   replaced `Union[X, Y]` with `X | Y` and `Optional[X]` with `X | None`. (#908, #911 by @hoechenberger)
+- Added a new configuration option [`spatial_filter_raw`][mne_bids_pipeline._config.spatial_filter_raw]
+  to control whether to create cleaned raw data via ICA or SSP. Previously, we'd only clean epochs.
+  (#840, #926 by @larsoner and @hoechenberger)
 
 ### :warning: Behavior changes
 
 - All ICA HTML reports have been consolidated in the standard subject `*_report.html`
   file instead of producing separate files (#899 by @larsoner).
-- Changed default for `source_info_path_update` to `None`.  In `_04_make_forward.py`
+- When using ICA or SSP with resting-state data, we now automatically produce cleaned raw data files. This
+  behavior can be controlled via the new [`spatial_filter_raw`][mne_bids_pipeline._config.spatial_filter_raw]
+  configuration option. (#840, #926 by @larsoner and @hoechenberger)
+- Changed default for [`source_info_path_update`][mne_bids_pipeline._config.source_info_path_update]
+  to `None`.  In `_04_make_forward.py`
   and `_05_make_inverse.py`, we retrieve the info from the file from which
   the `noise_cov` is computed (#919 by @SophieHerbst)
 - The [`depth`][mne_bids_pipeline._config.depth] parameter doesn't accept `None`

mne_bids_pipeline/_config.py

@@ -1138,6 +1138,13 @@
     ICA fitting – this file will need to be updated!
 """
 
+spatial_filter_raw: bool | None = None
+"""
+Whether to clean the raw data with the spatial filter. If `True`, creates cleaned data
+for all raw data. If `False`, no raw data is written. If `None`, creates
+cleaned raw data for resting-state and empty-room runs if present.
+"""
+
 min_ecg_epochs: Annotated[int, Ge(1)] = 5
 """
 Minimal number of ECG epochs needed to compute SSP projectors.

mne_bids_pipeline/_config_utils.py

@@ -658,3 +658,12 @@ def _proj_path(
         suffix="proj",
         check=False,
     )
+
+
+def _which_spatial_filter_raw(*, config: SimpleNamespace) -> tuple[str]:
+    if config.spatial_fliter_raw:
+        return ("runs", "noise", "rest")
+    elif config.spatial_filter_raw is None:
+        return ("noise", "rest")
+    else:
+        return ()

mne_bids_pipeline/steps/preprocessing/_08a_apply_ica.py

@@ -13,6 +13,7 @@
 from mne_bids import BIDSPath
 
 from ..._config_utils import (
+    _which_spatial_filter_raw,
     get_runs_tasks,
     get_sessions,
     get_subjects,
@@ -276,6 +277,7 @@ def main(*, config: SimpleNamespace) -> None:
         parallel, run_func = parallel_func(
             apply_ica_raw, exec_params=config.exec_params
         )
+        which = _which_spatial_filter_raw(config=config)
         logs += parallel(
             run_func(
                 cfg=get_config(
@@ -294,6 +296,7 @@ def main(*, config: SimpleNamespace) -> None:
                 config=config,
                 subject=subject,
                 session=session,
+                which=which,
             )
         )
     save_logs(config=config, logs=logs)

mne_bids_pipeline/steps/preprocessing/_08b_apply_ssp.py

@@ -10,6 +10,7 @@
 
 from ..._config_utils import (
     _proj_path,
+    _which_spatial_filter_raw,
     get_runs_tasks,
     get_sessions,
     get_subjects,
@@ -181,6 +182,7 @@ def main(*, config: SimpleNamespace) -> None:
         parallel, run_func = parallel_func(
             apply_ssp_raw, exec_params=config.exec_params
         )
+        which = _which_spatial_filter_raw(config=config)
         logs += parallel(
             run_func(
                 cfg=get_config(
@@ -199,6 +201,7 @@ def main(*, config: SimpleNamespace) -> None:
                 config=config,
                 subject=subject,
                 session=session,
+                which=which,
             )
         )
     save_logs(config=config, logs=logs)