Childhood obsessive-compulsive disorder, epigenetics, and heterochrony: An evolutionary and developmental approach.

IF 3.1 2区 心理学 Q2 PSYCHOLOGY, DEVELOPMENTAL
Matteo Tonna, Davide Fausto Borrelli, Carlo Marchesi, Maria Carla Gerra, Cristina Dallabona
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引用次数: 0

Abstract

Childhood obsessive-compulsive disorder (OCD) stems from a bunch of restricted and repetitive behaviors, which are part of normal behavioral repertoire up to the age of 7. The persistence of compulsive-like behaviors after that age is often associated with unique comorbidity patterns, which are age-at-onset dependent and reflect different developmental stages. In particular, OCD synchronically co-occurs with a broad constellation of neurodevelopmental disorders, whereas diachronically it is related to an increased risk of major adult psychoses. Moreover, OCD is associated with trait-like sensory phenomena, suggesting a common disrupted sensorimotor grounding.The present study is aimed at exploring the hypothesis that this specific temporal and comorbidity OCD profile may be due to a developmental heterochronic mechanism of delay in attenuation of ontogenetically early behavioral patterns. The developmental shift of highly evolutionarily conserved behavioral phenotypes might be regulated by epigenetic changes induced by different conditions of sensory unbalance. This evolutionary and developmental model allows capturing childhood OCD in light of the ultimate causes of ritual behavior throughout phylogeny, namely its "homeostatic" function over conditions of unpredictability. Moreover, it may have important clinical implications, as OCD symptoms could represent putative biomarkers of early divergent developmental trajectories, with a pathoplastic effect on course and outcome.

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来源期刊
Development and Psychopathology
Development and Psychopathology PSYCHOLOGY, DEVELOPMENTAL-
CiteScore
7.20
自引率
9.10%
发文量
319
期刊介绍: This multidisciplinary journal is devoted to the publication of original, empirical, theoretical and review papers which address the interrelationship of normal and pathological development in adults and children. It is intended to serve and integrate the field of developmental psychopathology which strives to understand patterns of adaptation and maladaptation throughout the lifespan. This journal is of interest to psychologists, psychiatrists, social scientists, neuroscientists, paediatricians, and researchers.
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