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Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2018,9,11]]},"abstract":"<jats:p>\n                    Recent molecular genetic studies have shown that the majority of genes associated with obesity are expressed in the central nervous system. Obesity has also been associated with neurobehavioral factors such as brain morphology, cognitive performance, and personality. Here, we tested whether these neurobehavioral factors were associated with the heritable variance in obesity measured by body mass index (BMI) in the Human Connectome Project (\n                    <jats:italic toggle=\"yes\">n<\/jats:italic>\n                    = 895 siblings). Phenotypically, cortical thickness findings supported the \u201cright brain hypothesis\u201d for obesity. Namely, increased BMI is associated with decreased cortical thickness in right frontal lobe and increased thickness in the left frontal lobe, notably in lateral prefrontal cortex. In addition, lower thickness and volume in entorhinal-parahippocampal structures and increased thickness in parietal-occipital structures in participants with higher BMI supported the role of visuospatial function in obesity. Brain morphometry results were supported by cognitive tests, which outlined a negative association between BMI and visuospatial function, verbal episodic memory, impulsivity, and cognitive flexibility. Personality\u2013BMI correlations were inconsistent. We then aggregated the effects for each neurobehavioral factor for a behavioral genetics analysis and estimated each factor\u2019s genetic overlap with BMI. Cognitive test scores and brain morphometry had 0.25\u20130.45 genetic correlations with BMI, and the phenotypic correlations with BMI were 77\u201389% explained by genetic factors. Neurobehavioral factors also had some genetic overlap with each other. In summary, obesity as measured by BMI has considerable genetic overlap with brain and cognitive measures. This supports the theory that obesity is inherited via brain function and may inform intervention strategies.\n                  <\/jats:p>","DOI":"10.1073\/pnas.1718206115","type":"journal-article","created":{"date-parts":[[2018,8,28]],"date-time":"2018-08-28T13:17:01Z","timestamp":1535462221000},"page":"9312-9317","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":110,"title":["Neurobehavioral correlates of obesity are largely heritable"],"prefix":"10.1073","volume":"115","author":[{"given":"Uku","family":"Vainik","sequence":"first","affiliation":[{"name":"McGill University","place":["Canada"]},{"name":"University of Tartu","place":["Estonia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Travis E.","family":"Baker","sequence":"additional","affiliation":[{"name":"McGill University","place":["Canada"]},{"name":"Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, NJ 07102;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mahsa","family":"Dadar","sequence":"additional","affiliation":[{"name":"McGill University","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0583-5811","authenticated-orcid":false,"given":"Yashar","family":"Zeighami","sequence":"additional","affiliation":[{"name":"McGill University","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9anne","family":"Michaud","sequence":"additional","affiliation":[{"name":"McGill University","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu","family":"Zhang","sequence":"additional","affiliation":[{"name":"McGill University","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3459-222X","authenticated-orcid":false,"given":"Jos\u00e9 C.","family":"Garc\u00eda Alanis","sequence":"additional","affiliation":[{"name":"McGill University","place":["Canada"]},{"name":"Philipps University of Marburg","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bratislav","family":"Misic","sequence":"additional","affiliation":[{"name":"McGill University","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. 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