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Table 1 Evaluation results comparing AAS, FASTR implemented in the FMRIB plugin (FASTR-N) and FASTR implemented in FACET (FASTR-F)

From: FACET – a “Flexible Artifact Correction and Evaluation Toolbox” for concurrently recorded EEG/fMRI data

  AAS FASTR-N FASTR-F
Median imaging artifact (μV) 71.0 64.9 68.2
RMS corrected to unimpaired 0.979 0.922 0.932
RMS uncorrected to corrected 93.7 99.6 98.6
SNR of corrected 4.17 (11) 12.1 (9) 24.0 (10)
 Median residual activity
   0.8–4.0 Hz 28% 29% 28%
   4.0–8.0 Hz 15% 20% 19%
   8.0–12.0 Hz 45% 32% 40%
 12.0–24.0 Hz 25% 23% 24%
Power density at slice frequency
 1: 7.00 Hz -52 dB -52 dB -56 dB
 2: 14.00 Hz -56 dB -57 dB -55 dB
 3: 21.00 Hz -68 dB -68 dB -68 dB
 4: 28.00 Hz -69 dB -70 dB -70 dB
 5: 35.00 Hz -67 dB -68 dB -67 dB