fNIRS data
CORTEX
fNIRS data were imported into Matlab (version 2018b, Mathworks, MA, USA) and analyzed using the NIRS toolbox (open access;  Visually checking raw signals and resampling signals to 5 Hz. Converting raw signals into optical density using the Beer–Lambert law for which a partial path length correction factor of 0.1 was used. Running a general linear model (GLM) with the autoregressive iteratively reweighted least squares (AR-IRLS) method Averaging channels per hemisphere for each ROI, as determined within fOLD, and the human motor area template for separating the PMC and SMA Calculating relative oxygenated hemoglobin (HbOfNIRS lay-out with regions of interest (ROIs) according to fOLD toolbox, with a specificity level of 50%. The prefrontal cortex (PFC) is represented by the blue colored connections to the channels, the frontal eye fields (FEF) by the green channels, the supplementary motor area (SMA) by the orange channels, the premotor cortex (PMC) by the purple channels, and the somatosensory cortex (SSC) by the yellow channels. The channels situated at the midline were excluded (indicated by black crosses), and ROIs were analyzed for each hemisphere separately.As HbO