10.18453/rosdok_id00005058 Nguyen, Truong An Truong An Nguyen Universität Rostock 2025 004 Data processing Computer sciences 150 Psychology 610 Medical sciences Medicine 2025 en https://purl.uni-rostock.de/rosdok/id00005058 urn:nbn:de:gbv:28-rosdok_id00005058-6 The assessment of psychological trauma is clinically challenging, as standard diagnoses are often subjective. This study investigates Heart Rate Variability (HRV) as an objective biomarker for Post-traumatic stress disorder (PTSD). A comparison between patients and healthy controls during a simulated EMDR therapy revealed significantly reduced activity in the LF (Low Frequency) and HF (High Frequency) frequency bands in those affected. The results demonstrate that HRV is a valuable tool for analyzing the autonomic nervous system and for the objective differentiation of PTSD patients.