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Richer, R.* ; Koch, V.* ; Abel, L.* ; Hauck, F.* ; Kurz, M.* ; Ringgold, V.* ; Müller, V.* ; Küderle, A.* ; Schindler-Gmelch, L.* ; Eskofier, B.M. ; Rohleder, N.*

Machine learning-based detection of acute psychosocial stress from body posture and movements.

Sci. Rep. 14:8251 (2024)
Verlagsversion DOI PMC
Creative Commons Lizenzvertrag
Investigating acute stress responses is crucial to understanding the underlying mechanisms of stress. Current stress assessment methods include self-reports that can be biased and biomarkers that are often based on complex laboratory procedures. A promising additional modality for stress assessment might be the observation of body movements, which are affected by negative emotions and threatening situations. In this paper, we investigated the relationship between acute psychosocial stress induction and body posture and movements. We collected motion data from N = 59 individuals over two studies (Pilot Study: N = 20, Main Study: N = 39) using inertial measurement unit (IMU)-based motion capture suits. In both studies, individuals underwent the Trier Social Stress Test (TSST) and a stress-free control condition (friendly-TSST; f-TSST) in randomized order. Our results show that acute stress induction leads to a reproducible freezing behavior, characterized by less overall motion as well as more and longer periods of no movement. Based on these data, we trained machine learning pipelines to detect acute stress solely from movement information, achieving an accuracy of 75.0 ± 17.7 % (Pilot Study) and 73.4 ± 7.7 % (Main Study). This, for the first time, suggests that body posture and movements can be used to detect whether individuals are exposed to acute psychosocial stress. While more studies are needed to further validate our approach, we are convinced that motion information can be a valuable extension to the existing biomarkers and can help to obtain a more holistic picture of the human stress response. Our work is the first to systematically explore the use of full-body body posture and movement to gain novel insights into the human stress response and its effects on the body and mind.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Cortisol ; Freezing ; Health Psychology ; Imu ; Machine Learning ; Motion Capturing ; Stress ; Tsst; Individual-differences; Cortisol Responses; Inflammation; Markers; System; Cycle; Axis; Men
ISSN (print) / ISBN 2045-2322
e-ISSN 2045-2322
Zeitschrift Scientific Reports
Quellenangaben Band: 14, Heft: 1, Seiten: , Artikelnummer: 8251 Supplement: ,
Verlag Nature Publishing Group
Verlagsort London
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of AI for Health (AIH)
Förderungen German Research Foundation (DFG)
Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
Projekt DEAL