{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T09:45:41Z","timestamp":1782812741431,"version":"3.54.5"},"reference-count":83,"publisher":"World Scientific Pub Co Pte Ltd","issue":"07","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Neur. Syst."],"published-print":{"date-parts":[[2019,9]]},"abstract":"<jats:p> Although much research has been undertaken, the spatial patterns, developmental course, and sexual dimorphism of brain structure associated with autism remains enigmatic. One of the difficulties in investigating differences between the sexes in autism is the small sample sizes of available imaging datasets with mixed sex. Thus, the majority of the investigations have involved male samples, with females somewhat overlooked. This paper deploys machine learning on partial least squares feature extraction to reveal differences in regional brain structure between individuals with autism and typically developing participants. A four-class classification problem (sex and condition) is specified, with theoretical restrictions based on the evaluation of a novel upper bound in the resubstitution estimate. These conditions were imposed on the classifier complexity and feature space dimension to assure generalizable results from the training set to test samples. Accuracies above [Formula: see text] on gray and white matter tissues estimated from voxel-based morphometry (VBM) features are obtained in a sample of equal-sized high-functioning male and female adults with and without autism ([Formula: see text], [Formula: see text]\/group). The proposed learning machine revealed how autism is modulated by biological sex using a low-dimensional feature space extracted from VBM. In addition, a spatial overlap analysis on reference maps partially corroborated predictions of the \u201cextreme male brain\u201d theory of autism, in sexual dimorphic areas. <\/jats:p>","DOI":"10.1142\/s0129065718500582","type":"journal-article","created":{"date-parts":[[2018,12,14]],"date-time":"2018-12-14T02:10:19Z","timestamp":1544753419000},"page":"1850058","source":"Crossref","is-referenced-by-count":41,"title":["A Machine Learning Approach to Reveal the NeuroPhenotypes of Autisms"],"prefix":"10.1142","volume":"29","author":[{"given":"Juan M.","family":"G\u00f3rriz","sequence":"first","affiliation":[{"name":"Department of Signal Theory, Networking and Communications, University of Granada, Granada 18071, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Javier","family":"Ram\u00edrez","sequence":"additional","affiliation":[{"name":"Department of Signal Theory, Networking and Communications, University of Granada, Granada 18071, 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