| ANS | Autonomic Nervous System |
| BPI | Brief Pain Inventory |
| BPQ | Body Perception Questionnaire |
| CI | Confidence Interval |
| CPEA | Childhood Physical and Emotional Abuse |
| CSA | Childhood Sexual Abuse |
| CTQ | Childhood Trauma Questionnaire |
| GNR | Guarda Nacional Republicana |
| HRV | Heart Rate Variability |
| LEC-17 | Life Events Checklist for DSM-IV (17 items) |
| PTSD | Post-Traumatic Stress Disorder |
| SEM | Structural Equation Modeling |
| VNS | Vagus Nerve Stimulation |