Abstracts of the Week.

This week’s abstracts come from Yakiesha, who has been exploring recent work on emotion regulation and dysregulation, as well as stress in institutional contexts. Below are three papers that caught her attention.

Two recent neuroimaging studies examine how trauma timing and trauma type shape emotion regulation in PTSD.

In Human Brain Mapping, Liu et al. (2025) investigate how the age at trauma onset influences neural activation during flexible emotion regulation. Using fMRI, the authors found that childhood and adulthood trauma were associated with greater activation in regions including the thalamus and frontal cortex, while adolescent trauma showed distinct neural patterns. The findings underscore the importance of trauma timing in shaping both behavioral and neural dimensions of PTSD.
Liu, S., et al. (2025). Trauma Timing and Its Impact on Brain Activation During Flexible Emotion Regulation in PTSD: Insights From Functional MRI. Human Brain Mapping, 46(14), e70346.

In Psychological Medicine, Guo et al. (2025) differentiate between relational (interpersonal) and nonrelational trauma PTSD using the Nested Hierarchical Model of Self. Their findings suggest relational trauma may disrupt top-down self-processing systems, while nonrelational trauma may amplify bottom-up threat detection processes. The study highlights how trauma type may require tailored intervention approaches.
Guo, Y., et al. (2025). Neural mechanisms underlying implicit emotion regulation deficit in relational and nonrelational trauma PTSD. Psychological Medicine, 55, e248.

Shifting from neural mechanisms to institutional stress, Griffiths et al. (2025) take a biometric approach to examining physiological stress in child welfare workers. Across a 72-hour monitoring period, frontline workers averaged nearly 16 hours of physiological stress per day, with limited recovery time. The findings raise important questions about institutional environments and their impact on both professionals and the systems they support.
Griffiths, A., et al. (2025). A New Approach: Using Biometric Technology to Explore the Physiological Stress of Working in Child Welfare. Journal of Technology in Behavioral Science, 10(3), 672–681.

Together, these studies reflect growing interest in how trauma and institutional contexts shape emotional and physiological regulation across systems.