Related Experiment Video
Updated: Jan 31, 2026

Behavioral Training Procedures for Head-fixed Virtual Reality in Mice
Published on: September 6, 2024
Gatekeeper training for suicidal behaviors: A systematic review.
Naohiro Yonemoto1, Yoshitaka Kawashima2, Kaori Endo2
1Department of Psychopharmacology, National Center of Neurology and Psychiatry, 4-1-1 Ogawahigashi, Kodaira, Tokyo, Japan; Department of Biostatistics, Kyoto University School of Public Health, Japan.
Gatekeeper training (GKT) effectiveness for suicide prevention remains unclear. More high-quality research is needed to evaluate standardized GKT programs across diverse populations.
Area of Science:
- Psychiatry
- Public Health
- Mental Health Interventions
Background:
- Gatekeeper training (GKT) is a widely used intervention strategy aimed at preventing suicidal behavior.
- Existing evidence on GKT's effectiveness requires updated investigation.
- Various GKT programs exist, necessitating a review of their diversity and impact.
Purpose of the Study:
- To systematically review updated evidence on the effectiveness of Gatekeeper training (GKT) in suicide prevention.
- To identify and describe the variations present in current GKT programs.
- To assess the impact of GKT on knowledge, appraisals, and self-efficacy.
Main Methods:
- A systematic literature review was conducted using multiple databases (PubMed, PsycINFO, CINAHL, Cochrane).
- Included studies were randomized controlled trials (RCTs) and intervention studies with prospective or quasi-experimental designs.
- A total of 343 articles were initially identified, with 10 RCTs and 6 intervention studies meeting eligibility criteria.
Main Results:
- Multiple GKT variations were identified, including Question, Persuade, and Refer (QPR), Applied Suicide Intervention Skills Training (ASIST), OSPI, and Youth Aware of Mental Health (YAM).
- For RCTs, GKT's effects on knowledge, appraisals, and self-efficacy remained unclear, though uncontrolled studies showed some support.
- The overall quality of included RCTs was rated as low or unclear.
Conclusions:
- The effectiveness of Gatekeeper training (GKT) for suicide prevention is currently unclear.
- Significant variations exist in GKT programs, and replication studies in target populations are needed.
- Future research should focus on high-quality RCTs evaluating standardized GKT programs with appropriate control groups and pre-specified outcomes.
Related Concept Videos
Review and Preview
Percentiles are a type of fractile that partition data into...
Review and Preview
Random and Systematic Errors
Systematic Sampling Method
Systematic sampling is one of the simplest methods...
What is Behavior?
Propagation of Uncertainty from Systematic Error

