Figure 2.

Schematic sequence of each stage of the current study. The sequence of the experimental stages includes pre-stimulation labeled magnitude scale (Pre-LMS), allocated stimulation parameter (high frequency MNS, low frequency MNS, placebo) and post-stimulation (Post-LMS). A brief 5-min introduction, prior to the experiment comprised of obtaining participant’s consent and device set up. MNS, LMS, NIRS recordings from both hemispheres of the orbitofrontal cortex (OFC) were recorded simultaneously across all stages of the experiment (Pre-LMS, allocated stimulation parameter, Post-LMS) for all participants.