Adult mental health models show mixed support across studies

What the study found: The review found mixed and inconsistent support for diathesis-stress, vantage sensitivity, and differential susceptibility models in studies of adult mental health. It also reported that all three models were supported across the included studies, with 65 significant and 115 non-significant interactions.

Why the authors say this matters: The authors conclude that more research is needed across diverse populations and broader contexts to help guide developmental theory and interventions. The study suggests that understanding person-environment interactions in adulthood may require testing these models more carefully and more widely.

What the researchers tested: The authors conducted a systematic scoping review following PRISMA-ScR guidelines. They used a forward reference search based on eight foundational environmental sensitivity and differential susceptibility articles across three databases, and 36 studies met the inclusion criteria.

What worked and what didn't: A narrative synthesis found that most studies did not follow the best recommended practices for testing the models. Childhood environments tended to show stronger support for differential susceptibility, while adulthood environments showed more balanced evidence for differential susceptibility and diathesis-stress models; most studies focused on genotype and internalizing behaviors.

What to keep in mind: The review says there was limited research on these models in adulthood compared with childhood. It also notes that the included studies were concentrated on genotype and internalizing behaviors, which limited understanding of person-environment interactions for other individual and mental health factors.

Key points

• The review found inconsistent support for diathesis-stress, vantage sensitivity, and differential susceptibility models in adult mental health studies.
• Across the included studies, the authors reported 65 significant and 115 non-significant interactions.
• Childhood environments showed stronger support for differential susceptibility than adulthood environments did.
• Adulthood environments showed more balanced evidence for differential susceptibility and diathesis-stress models.
• Most included studies focused on genotype and internalizing behaviors.