Cognitive Impairments in Children with 22q11.2 Deletion Syndrome
Author Information
Author(s): Simon Tony J, Wu Zhongle, Avants Brian, Zhang Hui, Gee James C, Stebbins Glenn T
Primary Institution: M.I.N.D. Institute, University of California, Davis
Hypothesis
Changes in neural connectivity relate to cognitive impairment in children with chromosome 22q11.2 deletion syndrome.
Conclusion
Atypical development of connective patterns in the brains of children with chromosome 22q11.2 deletion syndrome is related to their visuospatial cognitive impairments.
Supporting Evidence
- Children with 22q11.2DS showed significant reductions in brain volume compared to typically developing children.
- Diffusion tensor imaging revealed differences in connectivity patterns between the two groups.
- Correlations between diffusion values and cognitive performance indicated that atypical connectivity is linked to cognitive impairments.
Takeaway
Kids with a specific genetic condition have different brain connections that make it hard for them to pay attention to things in space.
Methodology
Whole brain analyses of diffusion tensor imaging data from children with the disorder and typically developing controls, correlated with performance on a visuospatial cognitive task.
Limitations
The resolution of the original data set was limited, and the study did not cover the whole brain.
Participant Demographics
Participants included 18 children with 22q11.2DS (mean age 9.8, 11 female) and 18 typically developing children (mean age 10.4, 7 female).
Statistical Information
P-Value
<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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