Leave the Screen: The Influence of Everyday Behaviors on Self-reported Interoception.

Wallman-Jones, A; Nigg, Carina; Benzing, V; Schmidt, M (2023). Leave the Screen: The Influence of Everyday Behaviors on Self-reported Interoception. Biological psychology, 181, p. 108600. Elsevier 10.1016/j.biopsycho.2023.108600

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The influence of physical activity on interoception is apparent, however little is known about within-person variability following physical activity and sedentary behavior in daily life. To test this, 70 healthy adults (Mage 21.67±2.50) wore thigh-mounted accelerometers for 7-days, with self-reported interoception recorded on movement-triggered smartphones. Participants additionally reported the predominant activity type performed across the last 15minutes. Investigating this timeframe, multi-level analyses revealed that each one-unit increase in physical activity was associated with an increase in self-reported interoception (B = 0.0025, p =.013), whereas contrastingly, each one-minute increase in sedentary behavior was associated with a decrease (B = -0.06. p =.009). Investigating the influence of different activity types in comparison to screen time behavior, both partaking in exercise (B = 4.48, p <.001) and daily-life physical activity (B = 1.21, p <.001) were associated with an increase in self-reported interoception. Regarding other behavior categories, non-screen time behavior both with (B = 1.13, p <.001) and without (B = 0.67, p =.004) social interaction were also associated with an increase in self-reported interoception compared to screen-time behavior. Extending from previous laboratory-based studies, these findings indicate that physical activity influences interoceptive processes in real-life, further supplemented by the novel and contrasting findings regarding sedentary behavior. Furthermore, associations with activity type reveal important mechanistic information, highlighting the importance of reducing screen-time behavior to preserve and support interoceptive perceptions. Findings can be used to inform health recommendations for reducing screen-time behavior and guiding evidence-based physical activity interventions to promote interoceptive processes.

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