Cortical high-threshold and low-activation characteristics in adolescent depression: a cross-age differential analysis - Report - MDSpire

Cortical high-threshold and low-activation characteristics in adolescent depression: a cross-age differential analysis

  • By

  • Jialin Gai

  • Duanwei Wang

  • Fengya Zhen

  • Tao Kong

  • Xiuqing Niu

  • Xianwei Che

  • Shengqiao Wang

  • Zhe Liu

  • Cuixia An

  • Xu Lin

  • May 14, 2026

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Clinical Report: Cortical Activation Patterns and Threshold Levels in Adolescent Depression

Overview

This study investigates the resting motor threshold (RMT) and cortical activation in adolescents with depression, revealing significant age-related differences. Findings indicate that adolescents exhibit higher RMT and lower cortical activation, correlating with greater depression severity.

Background

Adolescent depression is a pressing public health issue, with a notable prevalence that disrupts developmental processes. Understanding the neurobiological mechanisms underlying this condition is essential for developing effective interventions. This study focuses on the relationship between RMT, cortical activation, and depression severity in adolescents, which may inform neuromodulation strategies.

Data Highlights

{'young_adults': {'RMT': 'Provide specific value', 'Oxy-Hb': 'Provide specific value'}, 'middle_aged': {'RMT': 'Provide specific value', 'Oxy-Hb': 'Provide specific value'}}

Key Findings

  • Adolescents had a significantly higher RMT compared to young adults and middle-aged groups (P < 0.001).
  • Adolescents exhibited the lowest prefrontal Oxy-Hb activation levels (P < 0.001).
  • A strong negative correlation was found between RMT and cortical activation (Spearman’s rs= -0.929, P < 0.001).
  • A strong positive correlation was observed between RMT and depression severity (Spearman’s rs = 0.837, P < 0.001).
  • The study highlights a coupling of high threshold, low activation, and severe symptoms in adolescents.

Clinical Implications

The findings suggest that high RMT and low cortical activation may serve as neurobiological markers for assessing depression severity in adolescents. Clinicians should consider these factors when tailoring neuromodulation strategies, such as rTMS, to optimize treatment outcomes.

Conclusion

This study underscores the importance of understanding cortical activation patterns in adolescent depression, which may guide the development of targeted therapeutic interventions. Further research is needed to explore the implications of these findings in clinical practice.

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  3. BMC Psychiatry (Springer), 2025 -- Characterising resting motor threshold in depressed individuals across life span: a large retrospective study
  4. Clinical Practice Guideline for the Assessment and Treatment of Children and Adolescents With Major and Persistent Depressive Disorders | CiNii Research
  5. Consensus review and considerations on TMS to treat depression: A comprehensive update endorsed by the National Network of Depression Centers, the Clinical TMS Society, and the International Federation of Clinical Neurophysiology
  6. Frontiers in Psychiatry — Adaptation of behavioural activation for adolescents with mild to moderate intellectual disabilities and depression
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  9. Consensus review and considerations on TMS to treat depression: A comprehensive update endorsed by the National Network of Depression Centers, the Clinical TMS Society, and the International Federation of Clinical Neurophysiology
  10. Left prefrontal transcranial magnetic stimulation for treatment-resistant depression in adolescents: a double-blind, randomized, sham-controlled trial
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  12. Efficacy and safety of repetitive transcranial magnetic stimulation in youth with depression: a systematic review and meta-analysis of randomized sham-controlled trials | World Journal of Pediatrics | Springer Nature Link
  13. A Multisite, 6-Month, Open-Label Study of Maintenance Transcranial Magnetic Stimulation for Adolescents with Treatment-Resistant Depression - PMC
  14. Characterising resting motor threshold in depressed individuals across life span: a large retrospective study | BMC Psychiatry | Springer Nature Link
  15. Utility of Functional Near-infrared Spectroscopy (fNIRS) in Major Depressive Disorder: A Systematic Review - PMC

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