BD	Bipolar Disorder
CCO	Cytochrome-c-oxidase
CSF	Cerebrospinal Fluid
DLPFC	Dorsolateral Prefrontal Cortex
EEG	Electroencephalography
HbO	Oxyhemoglobin
HbD	Hemoglobin Difference
HbR	Deoxyhemoglobin
HbT	Total Hemoglobin
MDD	Major Depressive Disorder
MeSH	Medical Subject Headings
OFC	Orbitofrontal Cortex
PCA	Principal Component Analysis
PET	Positron Emission Tomography
PFC	Prefrontal Cortex
RCT	Randomized Controlled Trial
STG	Superior Temporal Gyrus
SUD	Substance Use Disorder
VR	Virtual Reality
WHO	World Health Organization
fMRI	Functional Magnetic Resonance Imaging
fNIRS	Functional Near-Infrared Spectroscopy
iTBS	Intermittent Theta Burst Stimulation
non-RCT	Non-Randomized Controlled Trial
qEEG	Quantitative Electroencephalography
rCBV	Regional Cerebral Blood Volume
rTMS	Repetitive Transcranial Magnetic Stimulation