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Machine-learning classification using neuroimaging data in schizophrenia, autism, ultra-high risk and first-episode psychosis.


ABSTRACT: Neuropsychiatric disorders are diagnosed based on behavioral criteria, which makes the diagnosis challenging. Objective biomarkers such as neuroimaging are needed, and when coupled with machine learning, can assist the diagnostic decision and increase its reliability. Sixty-four schizophrenia, 36 autism spectrum disorder (ASD), and 106 typically developing individuals were analyzed. FreeSurfer was used to obtain the data from the participant's brain scans. Six classifiers were utilized to classify the subjects. Subsequently, 26 ultra-high risk for psychosis (UHR) and 17 first-episode psychosis (FEP) subjects were run through the trained classifiers. Lastly, the classifiers' output of the patient groups was correlated with their clinical severity. All six classifiers performed relatively well to distinguish the subject groups, especially support vector machine (SVM) and Logistic regression (LR). Cortical thickness and subcortical volume feature groups were most useful for the classification. LR and SVM were highly consistent with clinical indices of ASD. When UHR and FEP groups were run with the trained classifiers, majority of the cases were classified as schizophrenia, none as ASD. Overall, SVM and LR were the best performing classifiers. Cortical thickness and subcortical volume were most useful for the classification, compared to surface area. LR, SVM, and DT's output were clinically informative. The trained classifiers were able to help predict the diagnostic category of both UHR and FEP Individuals.

SUBMITTER: Yassin W 

PROVIDER: S-EPMC7429957 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Machine-learning classification using neuroimaging data in schizophrenia, autism, ultra-high risk and first-episode psychosis.

Yassin Walid W   Nakatani Hironori H   Zhu Yinghan Y   Kojima Masaki M   Owada Keiho K   Kuwabara Hitoshi H   Gonoi Wataru W   Aoki Yuta Y   Takao Hidemasa H   Natsubori Tatsunobu T   Iwashiro Norichika N   Kasai Kiyoto K   Kano Yukiko Y   Abe Osamu O   Yamasue Hidenori H   Koike Shinsuke S  

Translational psychiatry 20200817 1


Neuropsychiatric disorders are diagnosed based on behavioral criteria, which makes the diagnosis challenging. Objective biomarkers such as neuroimaging are needed, and when coupled with machine learning, can assist the diagnostic decision and increase its reliability. Sixty-four schizophrenia, 36 autism spectrum disorder (ASD), and 106 typically developing individuals were analyzed. FreeSurfer was used to obtain the data from the participant's brain scans. Six classifiers were utilized to classi  ...[more]

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