Cited by 671Autism Spectrum Disorder ResearchAdvanced Neuroimaging Techniques and ApplicationsGenetics and Neurodevelopmental Disorders

Differences in White Matter Fiber Tract Development Present From 6 to 24 Months in Infants With Autism

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Wolff, Jason J., Gu, Hongbin, Gerig, Guido, Elison, Jed T., Styner, Martin, Gouttard, Sylvain, Botteron, Kelly N., Dager, Stephen R. +11 more·2012·American Journal of Psychiatry

Abstract

OBJECTIVE: Evidence from prospective studies of high-risk infants suggests that early symptoms of autism usually emerge late in the first or early in the second year of life after a period of relatively typical development. The authors prospectively examined white matter fiber tract organization from 6 to 24 months in high-risk infants who developed autism spectrum disorders (ASDs) by 24 months. METHOD: The participants were 92 high-risk infant siblings from an ongoing imaging study of autism. All participants had diffusion tensor imaging at 6 months and behavioral assessments at 24 months; a majority contributed additional imaging data at 12 and/or 24 months. At 24 months, 28 infants met criteria for ASDs and 64 infants did not. Microstructural properties of white matter fiber tracts reported to be associated with ASDs or related behaviors were characterized by fractional anisotropy and radial and axial diffusivity. RESULTS: The fractional anisotropy trajectories for 12 of 15 fiber tracts differed significantly between the infants who developed ASDs and those who did not. Development for most fiber tracts in the infants with ASDs was characterized by higher fractional anisotropy values at 6 months followed by slower change over time relative to infants without ASDs. Thus, by 24 months of age, those with ASDs had lower values. CONCLUSIONS: These results suggest that aberrant development of white matter pathways may precede the manifestation of autistic symptoms in the first year of life. Longitudinal data are critical to characterizing the dynamic age-related brain and behavior changes underlying this neurodevelopmental disorder.

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Crossref · 10.1176/appi.ajp.2011.11091447

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  • Wolff and colleagues reported altered tract development between 6 and 24 months in infants subsequently diagnosed with autism, suggesting that atypical structural maturation may appear early, preceding overt behavioral diagnosis.

    “Wolff and colleagues reported altered tract development between 6 and 24 months in infants subsequently diagnosed with autism, suggesting that atypical structural maturation may appear early, preceding overt behavioral diagnosis (Wolff et al., 2012).”

    From 40 Years of diffusion MRI in the brain: From history to emerging frontiers (2026) · cites this paper as Wolff et al., 2012

  • The findings are consistent with prior studies suggesting that physiologic changes may be detectable before behavioral changes become manifest in a variety of neurological and neurodevelopmental disorders.

    “Our findings are consistent with prior studies suggesting that physiologic changes may be detectable before behavioral changes become manifest in a variety of neurological and neurodevelopmental disorders [36–43].”
  • This work aligns with an emerging body of evidence demonstrating changes in brain development prior to the manifestation of overt behavioral changes in infants at high familial risk for ASD and points to the potential of brain-based markers for early identification and prognostication in neurodevelopmental disorders.

    “This work aligns with an emerging body of evidence demonstrating changes in brain development prior to the manifestation of overt behavioral changes in infants at high familial risk for ASD [39, 42, 43], and points to the potential of brain-based markers for early identification and prognostication in neurodevelopmental disorders.”
  • Developmental trajectories of white matter are most predictive of later ASD diagnosis in studies of high-risk infants.

    “It has already been shown in studies of high-risk infants that developmental trajectories of white matter are most predictive of later ASD diagnosis.68”
  • The number of children who met later criteria for ASD was comparable with recent studies of infants with later ASD.

    “The number of children who met later criteria for ASD was comparable with recent studies of infants with later ASD [18, 21, 86].”

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Authors
Wolff, J. J., Gu, H., Gerig, G., Elison, J. T., Styner, M., Gouttard, S., Botteron, K. N., Dager, S. R., Dawson, G., Estes, A. M., Evans, A. C., Hazlett, H. C., Kostopoulos, P., McKinstry, R. C., Paterson, S. J., Schultz, R. T., Zwaigenbaum, L., Piven, J., & the IBIS Network
Affiliations
  • Autism Speaks (US)
  • From the Carolina Institute for Developmental Disabilities and the Department of Psychiatry, University of North Carolina, Chapel Hill; the Scientific Computing and Imaging Institute, University of Utah, Salt Lake City; the Department of Psychiatry and the Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis; the Department of Radiology and the Department of Speech and Hearing Sciences, University of Washington, Seattle; Autism Speaks, New...
Venue
American Journal of Psychiatry
Published
2012-06
Volume
169
Issue
6
Pages
589-600
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2090153386
Cited by
671
References
63
Citations by year
2026: 19 · 2025: 33 · 2024: 34 · 2023: 36 · 2022: 33 · 2021: 42 · 2020: 48 · 2019: 44 · 2018: 40 · 2017: 53 · 2016: 49 · 2015: 79 · 2014: 60 · 2013: 66 · 2012: 34
FWCI
39.10
Type
journal article
Language
en
Open access
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Biomedical Imaging and Bioengineering (EB-005149, U54EB005149)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (#HD03110, HD055741-S1, P30HD003110, HD-055741, HD-40127, T32HD007376, T32HD040127, R01HD055741)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
autism spectrum disorder, white matter development, fiber tracts, fractional anisotropy, diffusion tensor imaging, high-risk infants, infant siblings, brain development, radial diffusivity, axial diffusivity
MeSH terms
Autistic Disorder, Brain, Child Development Disorders, Pervasive, Child, Preschool, Female, Humans, Infant, Magnetic Resonance Imaging, Male, Nerve Fibers, Myelinated, Case-Control Studies, Anisotropy, Diffusion Tensor Imaging, Neuroimaging

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