The Emerging Clinical Neuroscience of Autism Spectrum Disorder: A Review

Area of Science:

• Neuroscience
• Genetics
• Developmental Psychology

Background:

• Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder diagnosed behaviorally.
• Genetic and environmental factors, including prenatal exposures, significantly influence ASD development.
• Early neuroimaging reveals atypical brain development and connectivity in children with ASD from infancy.

Purpose of the Study:

• To educate clinicians on current research informing ASD clinical practice.
• To review risk factors for ASD, such as chromosomal deletion and prematurity.
• To preview emerging biological treatments for ASD.

Main Methods:

• Review of current research in clinical neuroscience, genetics, and neuroimaging.
• Analysis of case studies involving irritability and self-injury in preschool-aged children with ASD.
• Utilization of animal and cellular models to define molecular and cellular changes associated with ASD risk factors.

Main Results:

• Next-generation sequencing and advanced imaging techniques are defining ASD risk-related biological pathways.
• Common neurobiological mechanisms are emerging that may unify the effects of various risk factors.
• Subtyping ASD by genetic factors shows promise for developing targeted treatments.

Conclusions:

• Understanding neurobiological mechanisms is key to developing effective biological treatments for ASD.
• Precision medicine approaches, particularly genetic subtyping, offer hope for personalized ASD therapies.
• Continued research is essential to translate biological insights into improved clinical outcomes for individuals with ASD.