@@ -56,16 +56,14 @@ Spatially-standardized derivatives are denoted with a space label,
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such as ``MNI152NLin2009cAsym ``, while derivatives in
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the original ``T1w `` space omit the ``space- `` keyword.
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- Additionally, the following transforms are saved:
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- ::
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+ Additionally, the following transforms are saved::
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sub-<subject_label>/
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anat/
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sub-<subject_label>_from-MNI152NLin2009cAsym_to-T1w_mode-image_xfm.h5
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sub-<subject_label>_from-T1w_to-MNI152NLin2009cAsym_mode-image_xfm.h5
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- If FreeSurfer reconstructions are used, the following surface files are generated:
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- ::
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+ If FreeSurfer reconstructions are used, the following surface files are generated::
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sub-<subject_label>/
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anat/
@@ -75,8 +73,7 @@ If FreeSurfer reconstructions are used, the following surface files are generate
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sub-<subject_label>_hemi-[LR]_inflated.surf.gii
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And the affine translation (and inverse) between the original T1w sampling and FreeSurfer's
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- conformed space for surface reconstruction (``fsnative ``) is stored in:
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- ::
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+ conformed space for surface reconstruction (``fsnative ``) is stored in::
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sub-<subject_label>/
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anat/
@@ -85,8 +82,7 @@ conformed space for surface reconstruction (``fsnative``) is stored in:
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Functional derivatives are stored in the ``func/ `` subfolder.
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All derivatives contain ``task-<task_label> `` (mandatory) and ``run-<run_index> `` (optional), and
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- these will be indicated with ``[specifiers] ``.
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- ::
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+ these will be indicated with ``[specifiers] ``::
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sub-<subject_label>/
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func/
@@ -98,8 +94,7 @@ Volumetric output spaces include ``T1w`` and ``MNI152NLin2009cAsym`` (default).
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For each :abbr: `BOLD ( blood-oxygen level dependent ) ` run processed with *fMRIPrep *, an
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accompanying *confounds * file will be generated.
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- Confounds _ are saved as a :abbr: `TSV ( tab-separated value ) ` file:
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- ::
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+ Confounds _ are saved as a :abbr: `TSV ( tab-separated value ) ` file::
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sub-<subject_label>/
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func/
@@ -108,8 +103,7 @@ Confounds_ are saved as a :abbr:`TSV (tab-separated value)` file:
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These :abbr: `TSV ( tab-separated values ) ` tables look like the example below,
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where each row of the file corresponds to one time point found in the
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- corresponding :abbr: `BOLD ( blood-oxygen level dependent ) ` time series.
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- ::
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+ corresponding :abbr: `BOLD ( blood-oxygen level dependent ) ` time series::
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csf white_matter global_signal std_dvars dvars framewise_displacement t_comp_cor_00 t_comp_cor_01 t_comp_cor_02 t_comp_cor_03 t_comp_cor_04 t_comp_cor_05 a_comp_cor_00 a_comp_cor_01 a_comp_cor_02 a_comp_cor_03 a_comp_cor_04 a_comp_cor_05 non_steady_state_outlier00 trans_x trans_y trans_z rot_x rot_y rot_z aroma_motion_02 aroma_motion_04
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682.75275 0.0 491.64752000000004 n/a n/a n/a 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 -0.00017029 -0.0 0.0 0.0 0.0
@@ -119,8 +113,7 @@ corresponding :abbr:`BOLD (blood-oxygen level dependent)` time series.
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If FreeSurfer reconstructions are used, the ``(aparc+)aseg `` segmentations are aligned to the
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subject's T1w space and resampled to the BOLD grid, and the BOLD series are resampled to the
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- midthickness surface mesh:
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- ::
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+ midthickness surface mesh::
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sub-<subject_label>/
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func/
@@ -133,8 +126,7 @@ Surface output spaces include ``fsnative`` (full density subject-specific mesh),
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``fsaverage5 `` (10k vertices, default).
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If CIFTI outputs are requested (with the ``--cifti-outputs `` argument),
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- the BOLD series are also saved as ``dtseries.nii `` CIFTI2 files:
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- ::
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+ the BOLD series are also saved as ``dtseries.nii `` CIFTI2 files::
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sub-<subject_label>/
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func/
@@ -146,8 +138,7 @@ Sub-cortical time series are volumetric (supported spaces: ``MNI152NLin2009cAsym
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time series are sampled on the surface (supported spaces: ``fsaverage5 ``, ``fsaverage6 ``)
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Finally, if ICA-AROMA is used, the MELODIC mixing matrix and the components classified as noise
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- are saved:
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- ::
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+ are saved::
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sub-<subject_label>/
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func/
@@ -158,8 +149,7 @@ are saved:
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FreeSurfer Derivatives
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----------------------
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- A FreeSurfer subjects directory is created in ``<output_dir>/freesurfer ``.
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- ::
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+ A FreeSurfer subjects directory is created in ``<output_dir>/freesurfer ``::
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<output_dir>/
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fmriprep/
@@ -192,7 +182,7 @@ For a detailed review of the possible sources of noise in the BOLD signal, refer
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Such non-neuronal fluctuations may drive spurious results in fMRI data analysis,
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including standard activation :abbr: `GLM ( General Linear Model ) ` and functional connectivity analyses.
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It is possible to minimize confounding effects of non-neuronal signals by including them as nuisance regressors
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- in the :abbr: ` GLM ( General Linear Model ) ` design matrix or regressing them out from
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+ in the GLM design matrix or regressing them out from
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the fMRI data - a procedure known as *denoising *.
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There is currently no consensus on an optimal denoising strategy in the fMRI community.
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Rather, different strategies have been proposed, which achieve different compromises between
@@ -267,7 +257,7 @@ Confounds for outlier detection
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``1 `` value and ``0 `` elsewhere (*i.e. *, there is one ``non_steady_state_outlier_XX `` column per
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outlier/volume).
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- All these confounds can be used to detect potential outlier time points - frames with high motion or spikes.
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+ All these confounds can be used to detect potential outlier time points - frames with high motion or intensity spikes.
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Detected outliers can be further removed from time series using methods such as: volume *censoring * - entirely
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discarding problematic time points [Power2012 ]_, regressing signal from outlier points in denoising procedure,
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or including outlier points in the subsequent first-level analysis when building the design matrix.
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