Cross-Cultural Validation of Manual and Automated Methods for Extracting Trauma Memory Features and Predicting PTSD...

Area of Science:

• Psychology
• Neuroscience
• Child and Adolescent Psychiatry

Background:

• Cognitive models suggest fragmented trauma memories perpetuate post-traumatic stress disorder (PTSD).
• Evidence in pediatric populations is limited and heterogeneous, particularly outside high-income countries.
• Previous research has not adequately assessed narrative-based memory analysis in diverse youth samples.

Purpose of the Study:

• To evaluate the construct validity and clinical utility of narrative-derived indices of trauma memory in children and adolescents.
• To compare the predictive power of narrative-based versus self-report measures of trauma memory for PTSD symptoms.
• To examine cross-cultural and age-related variations in trauma memory-PTSD associations.

Main Methods:

• Pooled data from 407 children and adolescents (6-17 years) from South Africa and the UK.
• Analysis of trauma narratives for coherence and sensory valence using three narrative-based approaches.
• Correlations between narrative indices, self-reported memory quality, and concurrent PTSD symptoms.

Main Results:

• Self-reported trauma memory characteristics significantly associated with PTSD symptoms across both cultural contexts.
• Narrative-derived indices showed no convergence with self-report measures and did not predict PTSD symptoms.
• Self-report measures were reliable and cross-culturally valid indicators of PTSD symptomatology in youth.

Conclusions:

• Commonly used narrative-based indices lack construct validity and clinical utility for predicting PTSD in traumatized youth.
• Self-report measures of trauma memory features are reliable and cross-culturally valid predictors of PTSD symptoms in children and adolescents.
• Findings highlight the importance of culturally sensitive self-report measures for assessing trauma sequelae in pediatric populations.