Extract Nuisance Timeseries from Mask

Extracts voxel timeseries from regions defined by a mask (e.g., WM/CSF). This is the typical input for soft subspace projection.

Usage

extract_nuisance_timeseries(dataset, mask, run = NULL)

Arguments

dataset

An fmri_dataset object.

mask

A binary mask (logical vector or 3D array) indicating nuisance voxels, or a file path to a NIfTI mask.

run

Optional run index to extract data from a specific run.

Value

Matrix of nuisance timeseries (time x nuisance_voxels).