Cutaneous sensory symptoms and emotional regulation in non-clinical healthy students: a near-infrared spectroscopy study.

Background: In an era of increasing societal stress, greater attention must be given to the mental health and well-being of non-clinical populations. Many individuals in these groups report cutaneous sensory symptoms-such as pain, crawling sensations, and burning-linked to underlying mental stress. To investigate the relationship between these stress indicators and well-being, this study examines whether university students with higher versus lower levels of these symptoms differ in their ability to regulate emotions through distraction. Methods: Data were collected from 57 university students (mean age: 19.26 ± 1.03 years, range: 18-23 years, 22 males), including near-infrared spectroscopy (NIRS) data from 53 participants. Students were categorized into higher ( Results: Participants with higher cutaneous symptoms struggled more with maintaining attention during SART and showed less reduction in unpleasant emotions. Only those with lower symptoms experienced a decrease in unpleasant emotions. Furthermore, participants with higher cutaneous symptoms exhibited medial prefrontal cortex activation during distraction, with no significant activation differences in the lateral prefrontal cortex. Conclusion: These findings suggest that university students with higher cutaneous symptoms face greater challenges in regulating emotions compared with those with lower symptoms. Their reduced ability to benefit from distraction may stem from difficulties in maintaining attentional focus or increased absorption in off-task thoughts, rather than impaired emotional inhibition. Addressing these challenges through targeted interventions may enhance the mental well-being and overall quality of life in non-clinical populations.