Table 1

Assessment schedule for patients

Measures	T0: baseline	In-treatment	T1: post-intervention	T2: follow-up at 2 months
Primary outcomes
Alpha frequency	X	X	X	X
SMR frequency	X	X	X	X
Theta frequency	X	X	X	X
High-beta frequency	X	X	X	X
Respiratory frequency	X		X	X
Muscle tension	X		X	X
Blood volume pulse	X		X	X
Secondary outcomes
Mood before/after session		X
Subjective stress level before/after session		X
Feeling of control during a session		X
DT	X		X	X
PSQ	X		X	X
RSQ	X		X	X
PHQ	X		X	X
GAD	X		X	X
ISI	X		X	X
GSE	X		X	X
WHOQOL-Bref	X		X	X
Evaluation of NFB-manual
ZUF-8			X
SUS			X
Self-generated items reg. acceptance			X

DT, distress thermometer; GAD, General Anxiety Disorder Scale; GSE, General Self-efficacy Scale; ISI, Insomnia Severity Index; NFB, neurofeedback; PHQ, Patient Health Questionnaire; PSQ, Perceived Stress Questionnaire; RSQ, Relaxation State Questionnaire; SUS, System Usability Scale; WHOQOL-Bref, WHO Quality of Life Questionnaire; ZUF-8, Patient Satisfaction Questionnaire.