Key result
Higher stress intensity is linked to higher negative and lower positive affect.
Observational
The study supports the bidirectional and dynamic nature of stress-affect relationships, highlighting the value of nuanced ecological momentary assessments.
Supports real-time stress-affect monitoring in affective disorders; extends dynamic modeling evidence yet leaves causal treatment implications open.
= 22.79 ± 5.35) came from three longitudinal ecological momentary assessment studies (completed between 2017 and 2020) across 7-15 days. Dynamic structural equation modelling tested the dynamics between stress and affect across valence and arousal, and their bidirectional relationships. Results showed that individuals with higher stress intensity experienced higher HNA and LNA and, to a lesser extent, lower HPA and LPA intensity. Individuals with higher stress intensity also had higher overall stress variability and less stress in response to PA. Higher average HNA was associated with higher stress variability, whereas higher average LNA was associated with higher affect variability. Additionally, higher HNA inertia was associated with more stress in response to HNA and less HNA reactivity to stress. Our findings support the bidirectional and dynamic nature of stress-affect relationships and the value of incorporating nuanced aspects of stress and affect into future research across populations and clinical intervention frameworks.
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Le et al. (2025) conducted an observational in Stress and affect. Ecological momentary assessment was evaluated on Bidirectional dynamics between stress and affect across valence and arousal. Higher stress intensity was associated with higher negative affect and lower positive affect, supporting the bidirectional and dynamic nature of stress-affect relationships.
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