Cited by 54Autism Spectrum Disorder ResearchMotor Control and AdaptationVestibular and auditory disorders

Oculomotor studies of cerebellar function in autism

Nowinski, Caralynn V., Minshew, Nancy J., Luna, Beatriz, Takarae, Yukari, Sweeney, John A.·2005·Psychiatry Research

Abstract

Histopathological, neuroimaging and genetic findings indicate cerebellar abnormalities in autism, but the extent of neurophysiological dysfunction associated with those findings has not been systematically examined. Suppression of intrusive saccades (square wave jerks) and the ability to sustain eccentric gaze, two phenomena requiring intact cerebellar function, were examined in 52 high-functioning individuals with autism and 52 age- and IQ-matched healthy subjects during visual fixation of static central and peripheral targets. Rates of intrusive saccades were not increased in autism during visual fixation, and foveopetal ocular drift was also not increased when subjects held an eccentric gaze. The absence of gross disturbances of visual fixation associated with cerebellar disease in individuals with autism, such as increased square wave jerk rates and foveopetal drift when holding eccentric gaze, indicates that the functional integrity of cerebellar--brainstem networks devoted to oculomotor control is preserved in autism despite reported anatomic variations. However, increased amplitude of intrusive saccades and reduced latency of target refixation after intrusive saccades were observed in individuals with autism, especially when subjects maintained fixation of remembered target locations without sensory guidance. The atypical metrics of intrusive saccades that were observed may be attributable to faulty functional connectivity in cortico-cerebellar networks.

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Crossref · 10.1016/j.psychres.2005.07.005

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  • Gaze linked to cerebellar function is characteristically atypical in individuals with autistic disorder, and subtle oculomotor alterations suggest abnormalities in cortico-cerebellar connectivity.

    “Gaze linked to cerebellar function [23] is characteristically atypical in individuals with AD and the observation of subtle oculomotor alterations suggests abnormalities in cortico-cerebellar connectivity [24, 25].”

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Authors
Nowinski, C. V., Minshew, N. J., Luna, B., Takarae, Y., & Sweeney, J. A.
Affiliations
  • University of Illinois Chicago (US)
  • University of Pittsburgh (US)
Corresponding author
Sweeney, John A.
Venue
Psychiatry Research
Publisher
Elsevier BV
Published
2005-11
Volume
137
Issue
1-2
Pages
11-19
ISSN
0165-1781 (ISSN-L)
OpenAlex
W1970401598
Cited by
54
References
52
Citations by year
2026: 1 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 1 · 2019: 1 · 2017: 1 · 2016: 6 · 2015: 3 · 2014: 3 · 2013: 6 · 2012: 3
FWCI
1.81
Type
journal article
Language
en
Open access
closed
Locations
  • Psychiatry Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Mental Health (MH01433, K02MH001433)
  • National Institute of Neurological Disorders and Stroke (NS33355)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P01HD035469, HD35469)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Neurology › Vestibular and auditory disorders
Keywords
autism spectrum disorder, cerebellum, oculomotor control, square wave jerks, visual fixation, cortico-cerebellar connectivity, high-functioning autism
MeSH terms
Adolescent, Adult, Autistic Disorder, Brain Mapping, Brain Stem, Cerebellum, Cerebral Cortex, Child, Female, Fixation, Ocular, Humans, Male, Memory, Short-Term, Middle Aged, Neural Pathways, Orientation, Reaction Time, Reference Values, Saccades, Visual Fields, Oculomotor Nerve Diseases

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