CBP	chronic back pain
HC	healthy control
fMRI	functional magnetic resonance imaging
BOLD	blood oxygen level-dependent
DLPFC	dorsolateral prefrontal cortex
ERP	event-related potential
VAS	visual analogue scale
NRS	numerical rating scale
mPFC	medial prefrontal cortex
INS	insula
CER	cerebellum
OCC	occipital cortex
SMA	supplementary motor area
MI	primary motor cortex
ACC	anterior cingulate cortex
PCC	posterior cingulate cortex
MCC	midcingular cortex
sACC	subgenual anterior cingulate cortex
aMCC	anterior midcingulate cortex