The Neurodevelopmental Basis of Early Childhood Disruptive Behavior: Irritable and Callous Phenotypes as Exemplars

Autor: Lauren S. Wakschlag, Daniel S. Pine, Margaret J. Briggs-Gowan, Susan B. Perlman, R. James R. Blair, Ellen Leibenluft
Rok vydání: 2018
Předmět:
Zdroj: American Journal of Psychiatry. 175:114-130
ISSN: 1535-7228
0002-953X
Popis: The Journal’s 175th anniversary combined with recent advances in research provides an ideal opportunity to present a neurodevelopmental roadmap for understanding, preventing, and treating psychiatric disorders. Such a roadmap is particularly relevant for early childhood onset neurodevelopmental conditions, which emerge when experience-dependent neuroplasticity is at its peak. Employing a novel developmental specification approach, this review places recent neurodevelopmental research on early childhood disruptive behavior within the historical context of The Journal. We highlight irritability and callous behavior as two core exemplars of early disruptive behavior. Both phenotypes can be reliably differentiated from normative variation as early as the first years of life. Both link to discrete pathophysiology: irritability with disruptions in prefrontal regulation of emotion, and callous behavior with abnormal fear processing. Each phenotype also possesses clinical and predictive utility. Based on a nomologic net of evidence, we conclude that early disruptive behavior is neurodevelopmental in nature, and should be reclassified as an early childhood-onset neurodevelopmental condition in DSM 5. Rapid translation from neurodevelopmental discovery to clinical application has transformative potential for psychiatric approaches of the millennium.
Databáze: OpenAIRE