ACC	Anterior cingulate cortex
AE	Adverse event
AI	Artificial intelligence
ANCOVA	Analysis of covariance
CGI-I	Clinical Global Impression-Improvement
CI	Confidence interval
CRED-nf	Consensus on the Reporting of Experimental Design neurofeedback
DA	Dopamine agonist
DSM-5	Diagnostic and statistical manual for mental disorders
EEG	Electroencephalogram
EF	Efficacy Analysis
FA	Full Analysis
fMRI	Functional magnetic resonance imaging
GAD-7	General Anxiety Disorder Scale
HDRS-17	Hamilton Depression Rating Scale
LSMean	Least squared mean
MDD	Major depressive disorder
MINI	Mini-International Neuropsychiatric Interview
NF	Neurofeedback
PAI	Positive activity intervention
PASS	Positive affect stimulation sustainment
PAT	Positive affect treatment
PHQ-9	Patient Health Questionnaire
PP	Per Protocol
QIDS-SR-16	Quick Inventory Depressive Symptomatology
RDoC	Research domain criteria
RS-EFP-NF	Reward system electronic fingerprint neurofeedback
SE	Standard error
SHAPS-C	Snaith–Hamilton Pleasure Scale
SNRIs	Serotonin and norepinephrine reuptake inhibitors
SSRIs	Selective serotonin reuptake inhibitors
STAR*D	Sequenced treatment alternatives to relieve depression
TMS	Transcranial magnetic stimulation
VS	Ventral striatum