{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T19:18:27Z","timestamp":1790536707310,"version":"4.1.0"},"reference-count":75,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2021,7,15]],"date-time":"2021-07-15T00:00:00Z","timestamp":1626307200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Brain and Behavior"],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Autism spectrum disorder (ASD) is a neurodevelopmental condition with a heterogeneous phenotype. The role of biomarkers in ASD diagnosis has been highlighted; cortical thickness has proved to be involved in the etiopathogenesis of ASD core symptoms. We apply support vector machine, a supervised machine learning method, in order to identify specific cortical thickness alterations in ASD subjects.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A sample of 76 subjects (9.5\u00a0\u00b1\u00a03.4 years old) has been selected, 40 diagnosed with ASD and 36 typically developed subjects. All children underwent a magnetic resonance imaging (MRI) examination; T1\u2010MPRAGE sequences were analyzed to extract features for the characterization and parcellation of regions of interests (ROI); average cortical thickness (CT) has been measured for each ROI. For the classification process, the extracted features were used as input for a classifier to identify ASD subjects through a \u201clearning by example\u201d procedure; the features with best performance was then selected by \u201cgreedy forward\u2010feature selection.\u201d Finally, this model underwent a leave\u2010one\u2010out cross\u2010validation approach.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>From the training set of 68 ROIs, five ROIs reached accuracies of over 70%. After this phase, we used a recursive feature selection process in order to identify the eight features with the best accuracy (84.2%). CT resulted higher in ASD compared to controls in all the ROIs identified at the end of the process.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>We found increased CT in various brain regions in ASD subjects, confirming their role in the pathogenesis of this condition. Considering the brain development curve during ages, these changes in CT may normalize during development. Further validation on a larger sample is required.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/brb3.2238","type":"journal-article","created":{"date-parts":[[2021,7,15]],"date-time":"2021-07-15T06:42:20Z","timestamp":1626331340000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Automatic classification of autism spectrum disorder in children using cortical thickness and support vector machine"],"prefix":"10.1002","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6209-4629","authenticated-orcid":false,"given":"Letizia","family":"Squarcina","sequence":"first","affiliation":[{"name":"Department of Pathophysiology and Transplantation University of Milan  Via Festa del Perdono, 7, 20122 Milan Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guido","family":"Nosari","sequence":"additional","affiliation":[{"name":"Department of Pathophysiology and Transplantation University of Milan  Via Festa del Perdono, 7, 20122 Milan Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2392-4612","authenticated-orcid":false,"given":"Riccardo","family":"Marin","sequence":"additional","affiliation":[{"name":"Department of Informatics University of Verona  Verona Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Umberto","family":"Castellani","sequence":"additional","affiliation":[{"name":"Department of Informatics University of Verona  Verona Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcella","family":"Bellani","sequence":"additional","affiliation":[{"name":"Department of Neurosciences Biomedicine and Movement Sciences Section of Psychiatry University of Verona  Verona Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carolina","family":"Bonivento","sequence":"additional","affiliation":[{"name":"IRCCS \u201cE. 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