Non-Invasive Brain Stimulation Shows Promise in Reducing Suicidal Ideation

Strategic Insights -

Researchers at the University of Messina in Italy have conducted a systematic review and meta-analysis of existing literature on the use of non-invasive brain stimulation (NIBS) techniques in reducing suicidal ideation. The study, published in AIMS Neuroscience, found that high-frequency repetitive transcranial magnetic stimulation (rTMS) protocols were associated with a significant reduction in suicidal ideation, with individual studies reporting improvements ranging from 20% to over 35% on scales such as the scale for suicide ideation (SSI) and the Beck scale of suicide ideation (BSI).

Key Takeaways:

  • The study, conducted by researchers at the University of Messina, aimed to assess the effectiveness of non-invasive brain stimulation techniques in reducing suicidal ideation.
  • The review included nine studies that met the inclusion criteria, and found that high-frequency repetitive TMS (rTMS) protocols were associated with a significant reduction in suicidal ideation.
  • Improvements ranged from 20% to over 35% on scales such as the scale for suicide ideation (SSI) and the Beck scale of suicide ideation (BSI).
  • The study concluded that conclusions regarding clinical efficacy should be considered tentative, highlighting the need for further research in this area.
  • Non-invasive brain stimulation techniques, such as transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS), have entered the recognized guidelines for therapies in psychiatry due to their safety and tolerability.
  • The study's authors suggest that non-invasive brain stimulation may be a valuable tool in the treatment of suicidal ideation, particularly in combination with other therapeutic approaches.

Statistics:

  • 9 studies met the inclusion criteria for the review.
  • Improvements in suicidal ideation were reported in individual studies ranging from 20% to over 35%.
  • High-frequency repetitive TMS (rTMS) protocols showed a significant reduction in suicidal ideation.
  • The scale for suicide ideation (SSI) and the Beck scale of suicide ideation (BSI) were used to measure improvements in suicidal ideation.
  • The study's results suggest that non-invasive brain stimulation techniques may be effective in reducing suicidal ideation in up to 35% of patients.

Sources:

  • AIMS Neuroscience, "Non-invasive brain stimulation for suicidal ideation: a systematic review and metanalysis of the current literature," 2025; 12(3): 332-350.
  • NewsRx, "Studies from University of Messina Add New Findings in the Area of Neuroscience (Non-invasive brain stimulation for suicidal ideation: a systematic review and metanalysis of the current literature)," Mental Health Weekly Digest, October 27, 2025; p 1142.