Results: The results revealed no effects for f0 and state body dissatisfaction or general affect. Vocal analyses were performed using Praat, a program for extracting paralinguistic measures from spoken audio. Participants completed questionnaires on affect (i.e., arousal, valence, body-related distress), and their voice data and heart rate (HR) were recorded continuously. Methods: N = 73 female participants first underwent a 3-min, non-activating neutral reference condition, followed by a 7-min activating body exposure condition. The present study therefore aimed to validate f0 as a marker of vocally encoded emotional arousal, valence, and body-related distress during body exposure as a psychological stressor. Specifically, there is uncertainty regarding the validity of the indices of f0 mean and f0 variabilitymeasures ( f0 dispersion, f0 range, and f0 SD) and whether higher or lower f0 indices are associated with higher arousal in stressful situations. However, although f0 has often been used as an indicator of emotional arousal and different affective states, its psychometric properties are unclear. Introduction: Vocal analysis of fundamental frequency ( f0) represents a suitable index to assess emotional activation. 3Department of Psychology, Experimental Clinical Psychology, University of Konstanz, Konstanz, Germany.2Department of Clinical Psychology and Psychotherapy, University of Tübingen, Tübingen, Germany.1Department of Clinical Psychology and Psychotherapy, Osnabrück University, Osnabrück, Germany.Hartmann 3, Jennifer Svaldi 2 and Silja Vocks 1
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