ANS	Autonomic Nervous System
BP	Blood Pressure
CBT	Cognitive Behavioural Therapy
CES-D	Center for Epidemiologic Studies Depression Scale
FPQ-SF	Fear of Pain Questionnaire–Short Form
FoP	Fear of Pain
FoSP	Fear of Severe Pain
HC	Healthy Controls
HR	Heart Rate
HRV	Heart Rate Variability
IBI	Inter-beat Interval
LF	Low Frequency
PAG	Periaqueductal Grey
PCS	Pain Catastrophizing Scale
PFC	Prefrontal Cortex
RMSSD	Root Mean Square of Successive Differences
STAI	State-Trait Anxiety Inventory
VAS	Visual Analogue Scale