Two-legged hopping in autism spectrum disorders
| Autor: | Matthew F. Moran, Michael J. Weiss, Mary Elizabeth Parker, John T. Foley |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
medicine.medical_specialty
Movement disorders Sensory processing proprioception Cognitive Neuroscience medicine.medical_treatment Gross motor skill autism spectrum disorder Audiology lcsh:RC346-429 lcsh:RC321-571 stiffness Cellular and Molecular Neuroscience motor control medicine Original Research Article sensory processing lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry lcsh:Neurology. Diseases of the nervous system Proprioception Motor control medicine.disease Sensory Systems Autism spectrum disorder Autism medicine.symptom Psychology Cadence Neuroscience |
| Zdroj: | Frontiers in Integrative Neuroscience Frontiers in Integrative Neuroscience, Vol 7 (2013) |
| ISSN: | 1662-5145 |
| DOI: | 10.3389/fnint.2013.00014 |
| Popis: | Sensory processing deficits are common within autism spectrum disorders (ASD). Deficits have a heterogeneous dispersion across the spectrum and multimodal processing tasks are thought to magnify integration difficulties. Two-legged hopping in place in sync with an auditory cue (2.3, 3.0 Hz) was studied in a group of six individuals with expressive language impaired ASD (ELI-ASD) and an age-matched control group. Vertical ground reaction force data were collected and discrete Fourier transforms were utilized to determine dominant hopping cadence. Effective leg stiffness was computed through a mass-spring model representation. The ELI-ASD group were unsuccessful in matching their hopping cadence (2.21±0.30 hops•sec-1, 2.35±0.41 hops•sec-1) to either auditory cue with greater deviations at the 3.0 Hz cue. In contrast, the control group was able to match hopping cadence (2.35±0.06 hops•sec-1, 3.02±0.10 hops•sec-1) to either cue via an adjustment of effective leg stiffness. The ELI-ASD group demonstrated a varied response with an interquartile range (IQR) in excess of 0.5 hops•sec-1 as compared to the control group with an IQR < 0.03 hops•sec-1. Several sensorimotor mechanisms could explain the inability of participants with ELI-ASD to modulate motor output to match an external auditory cue. These results suggest that a multimodal gross motor task can (1) discriminate performance among a group of individuals with severe autism, and (2) could be a useful quantitative tool for evaluating motor performance in individuals with ASD individuals. |
| Databáze: | OpenAIRE |
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