Title
Predicting symptom severity in autism spectrum disorder based on cortical thickness measures in agglomerative data.
Abstract
Machine learning approaches have been widely used for the identification of neuropathology from neuroimaging data. However, these approaches require large samples and suffer from the challenges associated with multi-site, multi-protocol data. We propose a novel approach to address these challenges, and demonstrate its usefulness with the Autism Brain Imaging Data Exchange (ABIDE) database. We predict symptom severity based on cortical thickness measurements from 156 individuals with autism spectrum disorder (ASD) from four different sites. The proposed approach consists of two main stages: a domain adaptation stage using partial least squares regression to maximize the consistency of imaging data across sites; and a learning stage combining support vector regression for regional prediction of severity with elastic-net penalized linear regression for integrating regional predictions into a whole-brain severity prediction. The proposed method performed markedly better than simpler alternatives, better with multi-site than single-site data, and resulted in a considerably higher cross-validated correlation score than has previously been reported in the literature for multi-site data. This demonstration of the utility of the proposed approach for detecting structural brain abnormalities in ASD from the multi-site, multi-protocol ABIDE dataset indicates the potential of designing machine learning methods to meet the challenges of agglomerative data.
Year
DOI
Venue
2017
10.1016/j.neuroimage.2016.09.049
NeuroImage
Keywords
Field
DocType
Autism spectrum disorder,Magnetic resonance imaging,Cortical thickness,Machine learning,Domain adaptation
Hierarchical clustering,Domain adaptation,Support vector machine,Partial least squares regression,Psychology,Correlation,Artificial intelligence,Neuroimaging,Autism spectrum disorder,Machine learning,Linear regression
Journal
Volume
ISSN
Citations 
144
1053-8119
2
PageRank 
References 
Authors
0.39
0
5
Name
Order
Citations
PageRank
Elaheh Moradi1813.33
Budhachandra S. Khundrakpam2283.01
John Lewis3233.22
Alan C. Evans470.83
Jussi Tohka542935.95