| VR | Virtual reality |
| AT | Autogenic training |
| WHO | World Health Organization |
| ICD-11 | International Classification of Diseases, 11th Revision |
| TMS | Transcranial magnetic stimulation |
| tDCS | Transcranial direct current stimulation |
| HADS | Hospital Anxiety and Depression Scale |
| HADS-A | Hospital Anxiety and Depression Scale—Anxiety subscale |
| AIS | Athens Insomnia Scale |
| ACE-III | Addenbrooke’s Cognitive Examination III |
| MoCA | Montreal Cognitive Assessment |
| SD | Standard deviation |
| CI | Confidence interval |
| MCID | Minimal clinically important difference |
| ITC-SOPI | ITC-Sense of Presence Inventory |