Format

Send to

Choose Destination
Curr Opin Psychiatry. 2015 Mar;28(2):76-82. doi: 10.1097/YCO.0000000000000130.

Brain imaging research in autism spectrum disorders: in search of neuropathology and health across the lifespan.

Author information

1
Waisman Laboratory for Brain Imaging and Behavior, and Autism & Developmental Disorders Clinic, Waisman Center, and Department of Psychiatry, University of Wisconsin-Madison, Wisconsin, USA.

Abstract

PURPOSE OF REVIEW:

Advances in brain imaging research in autism spectrum disorders (ASD) are rapidly occurring, and the amount of neuroimaging research has dramatically increased over the past 5 years. In this review, advances during the past 12 months and longitudinal studies are highlighted.

RECENT FINDINGS:

Cross-sectional neuroimaging research provides evidence that the neural underpinnings of the behavioral signs of ASD involve not only dysfunctional integration of information across distributed brain networks but also basic dysfunction in primary cortices.Longitudinal studies of ASD show abnormally enlarged brain volumes and increased rates of brain growth during early childhood in only a small minority of ASD children. There is evidence of disordered development of white matter microstructure and amygdala growth, and at 2 years of age, network inefficiencies in posterior cerebral regions.From older childhood into adulthood, atypical age-variant and age-invariant changes in the trajectories of total and regional brain volumes and cortical thickness are apparent at the group level.

SUMMARY:

There is evidence of abnormalities in posterior lobes and posterior brain networks during the first 2 years of life in ASD and, even in older children and adults, dysfunction in primary cortical areas.

PMID:
25602243
PMCID:
PMC4465432
DOI:
10.1097/YCO.0000000000000130
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Wolters Kluwer Icon for PubMed Central
Loading ...
Support Center