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Voluntary saccades in attention-deficit/hyperactivity disorder: Looking into the relationship between motor impairment and Autism Spectrum Disorder symptoms.
- Source :
-
Neuroscience . Oct2016, Vol. 334, p47-54. 8p. - Publication Year :
- 2016
-
Abstract
- Although there is little overlap in core diagnostic criteria for ADHD and Autism Spectrum Disorder (ASD), ASD symptoms are estimated to co-occur in children with ADHD in 20–50% of cases. As motor control deficits are common to both disorders, we investigated the impact of ASD symptoms on ocular motor control in children with Attention Deficit Hyperactivity Disorder-Combined Type (ADHD-CT), using a cued saccade paradigm sensitive to cerebellar ocular motor impairment in ASD. Basic saccade metrics (latency, velocity and accuracy), trial-to-trial variability, and main sequences relationships (saccade velocity for a given amplitude) were assessed, for 14 males with ADHD-CT and 14 typically developing (TD) males (aged 8–14, IQ > 80). Our results revealed that saccade profiles of the ADHD-CT group showed a pattern of hypermetria and altered main sequence. As the cerebellum is crucially involved in the regulation of saccade parameters, we propose that this pattern of deficit in ADHD-CT is consistent with the widely reported morphological abnormalities in ocular motor vermis (cerebellar lobules VI-VII) in ADHD-CT and ASD. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03064522
- Volume :
- 334
- Database :
- Academic Search Index
- Journal :
- Neuroscience
- Publication Type :
- Academic Journal
- Accession number :
- 119158751
- Full Text :
- https://doi.org/10.1016/j.neuroscience.2016.07.013