Participants
MDD, SD, comorbid mental disorders, chronic suicidality
Of the 32 participants who completed the trial, 25 were included in the current study due to participant withdrawal (n = 2 after week 6) or missing electrophysiological recording session(s) (n = 1 for Pre, n = 1 for Post, n = 3 for FUP). These 25 participants included 11 males and 14 females aged 22 to 71 years (mean = 46.41 years, SD = 14.12). The participants were suffering from chronic suicidality and were referred to the trial by their local general practitioners. All participants had a diagnosis of MDD (DSM-V), and 76% had comorbid mental disorders, 92% reported ongoing use of psychotropic medications (see 