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Electrical and Computer Engineering

Electrical and Computer Engineering Faculty Research & Creative Works

Series

2015

Cluster analysis

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Full-Text Articles in Engineering

Facial Structure Analysis Separates Autism Spectrum Disorders Into Meaningful Clinical Subgroups, Tayo Obafemi-Ajayi, Judith H. Miles, T. Nicole Takahashi, Wenchuan Qi, Kristina Aldridge, Minqi Zhang, Shi Qing Xin, Ying He, Ye Duan May 2015

Facial Structure Analysis Separates Autism Spectrum Disorders Into Meaningful Clinical Subgroups, Tayo Obafemi-Ajayi, Judith H. Miles, T. Nicole Takahashi, Wenchuan Qi, Kristina Aldridge, Minqi Zhang, Shi Qing Xin, Ying He, Ye Duan

Electrical and Computer Engineering Faculty Research & Creative Works

Varied cluster analysis were applied to facial surface measurements from 62 prepubertal boys with essential autism to determine whether facial morphology constitutes viable biomarker for delineation of discrete Autism Spectrum Disorders (ASD) subgroups. Earlier study indicated utility of facial morphology for autism subgrouping (Aldridge et al. in Mol Autism 2(1):15, 2011). Geodesic distances between standardized facial landmarks were measured from three-dimensional stereo-photogrammetric images. Subjects were evaluated for autism-related symptoms, neurologic, cognitive, familial, and phenotypic variants. The most compact cluster is clinically characterized by severe ASD, significant cognitive impairment and language regression. This verifies utility of facially-based ASD subtypes and validates …