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)
    
    
    
		
		
			
				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
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Cortisol ; Freezing ; Health Psychology ; Imu ; Machine Learning ; Motion Capturing ; Stress ; Tsst; Individual-differences; Cortisol Responses; Inflammation; Markers; System; Cycle; Axis; Men
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2024
    
 
    
        Prepublished im Jahr 
        0
    
 
    
        HGF-Berichtsjahr
        2024
    
 
    
    
        ISSN (print) / ISBN
        2045-2322
    
 
    
        e-ISSN
        2045-2322
    
 
    
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	    Band: 14,  
	    Heft: 1,  
	    Seiten: ,  
	    Artikelnummer: 8251 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            Nature Publishing Group
        
 
        
            Verlagsort
            London
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of AI for Health (AIH)
    
 
    
        POF Topic(s)
        30205 - Bioengineering and Digital Health
    
 
    
        Forschungsfeld(er)
        Enabling and Novel Technologies
    
 
    
        PSP-Element(e)
        G-540008-001
G-540007-001
    
 
    
        Förderungen
        German Research Foundation (DFG)
Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
Projekt DEAL
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2024-05-24