Clinical Report: Meta-Analysis of Functional Brain Abnormalities in NSSI and SA
Overview
This meta-analysis identifies distinct neurofunctional alterations in individuals with nonsuicidal self-injury (NSSI) and suicide attempts (SA). Increased right amygdala activation was observed in NSSI individuals, while no significant differences were found between SA and control groups.
Background
Nonsuicidal self-injury (NSSI) and suicide attempts (SA) are significant public health concerns linked to substantial suffering and socio-economic costs. This study aims to clarify whether NSSI and SA share common brain dysregulations or exhibit distinct neurofunctional profiles.
Data Highlights
Group
Study Count
Sample Size
Mean Age
NSSI
10
200
22.89 years
SA
16
343
28.65 years
Key Findings
NSSI individuals showed increased right amygdala activation compared to controls and the SA group.
NSSI exhibited heightened left middle frontal gyrus activation and reduced left paracentral lobule activation compared to the SA group.
No significant activation differences were found between SA and controls, although increased left postcentral gyrus activation was noted in the SA group at a less conservative threshold.
No shared functional abnormalities were identified between NSSI and SA.
Neurofunctional abnormalities in NSSI were primarily driven by adolescent cohorts.
No significant clusters emerged for the SA group across age-stratified analyses.
Clinical Implications
Understanding the neurobiological profiles of NSSI and SA may inform future research directions.
Conclusion
This meta-analysis highlights the unique neurofunctional alterations associated with NSSI, particularly in adolescents, while indicating a lack of robust findings for SA.
