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. 2020 May 15;9:370. [Version 1] doi: 10.12688/f1000research.23216.1

Figure 5. Example of denoising functional data.

Figure 5.

( A) Images show the location of a chosen voxel (green crosshair), within the left inferior frontal gyrus (pars triangularis). ( B) Time series plots showing the change in BOLD signal within the specified voxel for raw data (grey line) and final denoised and temporal filtered data (blue line). All time series are demeaned. Units of change in BOLD are arbitrary scanner units. ( C) Plot showing the change in head position (left-right) in millimetres. Changes in head position align with large changes in BOLD signal, which are successfully minimised through denoising (via the use of ICA-AROMA).