“…A visual inspection was also performed, and minor manual adjustments were applied. Subsequently, parallel factor analysis (PARAFAC), i.e., a multidimensional decomposition method ( Harshman, 1970 ; Bro, 1997 ) which has recently been validated for fNIRS data ( Harshman, 1970 ; Bro, 1997 ; Hüsser et al, 2022 ), was used to correct the signal during relatively isolated artifact intervals. Noisy periods that lasted for a relatively long interval and where no clear signature could be extracted were excluded.…”