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Fear and anxiety: Lessons learned from the Dunedin longitudinal study
Richie Poulton1, Avshalom Caspi2, Terrie E Moffitt2
1Department of Psychology and Dunedin Multidisciplinary Health and Development Research Unit, University of Otago, 9016 Dunedin, New Zealand.
Neuroscience and Biobehavioral Reviews
|March 5, 2023
Summary
Childhood fears and anxiety disorders have complex developmental pathways. Understanding sequential comorbidity and developmental history is crucial for anxiety disorder prevention and treatment.
Area of Science:
- Psychiatry
- Developmental Psychology
- Epidemiology
Background:
- The Dunedin Study is a 50-year longitudinal investigation of a representative birth cohort.
- High retention rates (94%) ensure robust data for analyzing developmental trajectories.
Purpose of the Study:
- To review four related research lines on anxiety within the Dunedin Study cohort.
- To elucidate the developmental pathways and comorbidity patterns of various anxiety-related conditions.
Main Methods:
- Longitudinal cohort study analysis.
- Review of research findings on childhood fears, generalized anxiety disorder (GAD), major depressive episodes (MDE), and post-traumatic stress disorder (PTSD).
Main Results:
- Evolutionarily-relevant childhood fears may differ in emergence pathways from neutral fears.
- Sequential comorbidity of disorders, both within and outside the family, is common, underscoring developmental history.
- The relationship between GAD and MDE is bidirectional, with equal precedence observed.
- Childhood risk factors, comorbidity, life events, and mental disorder history significantly influence adult PTSD development.
Conclusions:
- Developmental history and sequential comorbidity are critical factors in understanding anxiety disorders.
- Findings have implications for psychiatric epidemiology, nosology, and the development of targeted prevention and treatment strategies.
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