AI Insight
This study used network analysis to examine relationships between executive function dimensions and specific non-suicidal self-injury (NSSI) behaviors in 1,300 Chinese adolescents. The research found that different executive function deficits (inhibitory control, working memory, and cognitive flexibility) connected to distinct NSSI behaviors, with inhibitory control most strongly linked to punching hard objects, working memory to self-biting, and cognitive flexibility to self-pinching. The analysis identified deliberate self-scratching as the most central NSSI behavior and inhibitory control plus punching objects as key bridge nodes connecting the two domains.
Why it matters
These findings suggest that NSSI prevention and intervention programs could be more effective by targeting specific executive function deficits associated with particular self-harm behaviors. Understanding these precise connections may help clinicians develop personalized treatment approaches rather than generic interventions for adolescents engaging in self-injury.
Understand the Science
BackgroundExecutive function deficits have been demonstrated to be closely associated with non-suicidal self-injury (NSSI) among adolescents. However, no studies to date have explored how the dimensions of executive function relate to specific NSSI behaviors in a joint framework. This study aimed to examine the relationships between the two constructs at a fine-grained level and identify the central nodes and bridge nodes of their relationships using network analysis.MethodsIn this cross-sectional study, 1,300 Chinese adolescents completed the Adolescent Executive Function Scale to assess self-reported inhibitory control, cognitive flexibility, and working memory, and the 12-item behavioral subscale of the Adolescent Non-Suicidal Self-Injury Assessment Questionnaire to measure specific NSSI behaviors. A regularized partial correlation network was estimated to investigate the connections between variables, and the expected influence (EI) and bridge expected influence (BEI) were calculated for each node.ResultsIn addition to connections within each community, network analysis revealed specific cross-community associations between executive function dimensions and NSSI behaviors. Inhibitory control was most strongly connected to B4 “Intentionally punching walls, tables, windows or the ground”; working memory was most strongly connected to B6 “Deliberately biting oneself”; and cognitive flexibility showed associations with B1 “Deliberately pinching oneself.” The most important central node was B2 “Deliberately scratching oneself,” and the critical bridge nodes were B4 “Intentionally punching walls, tables, windows or the ground” and IC “Inhibitory control.”ConclusionThese preliminary findings suggest that different dimensions of self-reported executive function difficulties exhibit distinct patterns of co-occurrence with specific NSSI behaviors. The central node and bridge nodes identified here may represent potential targets for future prevention and intervention research.
Source: Beyond deficits: which executive functions link to which NSSI behaviors? A network analysis