Key result
Adults with Down syndrome exhibit two distinct brain activation patterns during voluntary movement.
Why the study?
The underlying neural processes of cognitive and sensorimotor impairments in individuals with Down syndrome are poorly understood.
Observational
Adults with Down syndrome exhibit distinct, previously unreported patterns of neural activation and altered network dynamics during voluntary movement, reflecting differences in sensorimotor organization.
Answers are grounded in this paper and cite their sources.
Hypothesis-generating for atypical motor networks in Down syndrome; leaves open functional significance and therapeutic relevance.
Individuals with Down syndrome have well known cognitive and sensorimotor impairments, however, the underlying neural processes are poorly understood. The objective of this study was to investigate the underlying spatial localization and functional connectivity during voluntary movements of the right index finger. Adults with Down syndrome and healthy control adults participated in this study. Cortical responses were recorded with a 151-channel magnetoencephalographic system. In the Down syndrome group, we observed two distinct patterns of brain activation, an ipsilateral pattern and a contralateral pattern in the low-frequency band. The two distinct patterns of neural activation and the altered underlying network dynamics have not been reported previously, and may reflect differences in sensorimotor organization.
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Virji‐Babul et al. (2011) conducted an observational in Down syndrome. Down syndrome vs. Healthy control adults was evaluated on Spatial localization and functional connectivity during voluntary movements of the right index finger. Adults with Down syndrome exhibited two distinct patterns of brain activation (ipsilateral and contralateral in the low-frequency band) during voluntary movement.
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