A gene-environment cascade theoretical framework of developmental psychopathology

Area of Science:

• Psychology
• Genetics
• Developmental Science

Background:

• Traditional theories focus on internal genetic effects (endophenotypes) for psychopathology.
• Gene-environment correlation mechanisms are expanded upon to include external factors.

Purpose of the Study:

• Propose an integrative framework for gene-environment cascades in psychopathology.
• Emphasize genetic effects "outside the skin" and their accumulation.
• Integrate social information processing, environments, and sociocultural contexts.

Main Methods:

• Theoretical framework development.
• Focus on gene-environment correlations.
• Integration of social-emotional, cognitive, and sociocultural research.

Main Results:

• Genetic predisposition can lead to negative environments via gene-environment correlations.
• Social information processing can exacerbate or buffer these environmental effects.
• Developmental cascades involving social relationships and sociocultural contexts increase psychopathology risk.

Conclusions:

• The gene-environment cascade framework explains accumulating risk for psychopathology.
• This model moves beyond genetic determinism, informing early psychosocial prevention.
• Highlights the role of "outside the skin" genetic effects in developmental psychopathology.