{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T08:50:05Z","timestamp":1791103805521,"version":"4.1.0"},"reference-count":48,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2012,9,6]],"date-time":"2012-09-06T00:00:00Z","timestamp":1346889600000},"content-version":"vor","delay-in-days":2289,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Obesity"],"published-print":{"date-parts":[[2006,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Objective:<\/jats:italic> Prader\u2010Willi syndrome (PWS) is a genetic disorder associated with developmental delay, obesity, and obsessive behavior related to food consumption. The most striking symptom of PWS is hyperphagia; as such, PWS may provide important insights into factors leading to overeating and obesity in the general population. We used functional magnetic resonance imaging to study the neural mechanisms underlying responses to visual food stimuli, before and after eating, in individuals with PWS and a healthy weight control (HWC) group.<\/jats:p><jats:p><jats:italic>Research Methods and Procedures:<\/jats:italic> Participants were scanned once before (pre\u2010meal) and once after (post\u2010meal) eating a standardized meal. Pictures of food, animals, and blurred control images were presented in a block design format during acquisition of functional magnetic resonance imaging data.<\/jats:p><jats:p><jats:italic>Results:<\/jats:italic> Statistical contrasts in the HWC group showed greater activation to food pictures in the pre\u2010meal condition compared with the post\u2010meal condition in the amygdala, orbitofrontal cortex, medial prefrontal cortex (medial PFC), and frontal operculum. In comparison, the PWS group exhibited greater activation to food pictures in the post\u2010meal condition compared with the pre\u2010meal condition in the orbitofrontal cortex, medial PFC, insula, hippocampus, and parahippocampal gyrus. Between\u2010group contrasts in the pre\u2010 and post\u2010meal conditions confirmed group differences, with the PWS group showing greater activation than the HWC group after the meal in food motivation networks.<\/jats:p><jats:p><jats:italic>Discussion:<\/jats:italic> Results point to distinct neural mechanisms associated with hyperphagia in PWS. After eating a meal, the PWS group showed hyperfunction in limbic and paralimbic regions that drive eating behavior (e.g., the amygdala) and in regions that suppress food intake (e.g., the medial PFC).<\/jats:p>","DOI":"10.1038\/oby.2006.118","type":"journal-article","created":{"date-parts":[[2008,4,23]],"date-time":"2008-04-23T14:10:32Z","timestamp":1208959832000},"page":"1028-1037","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":161,"title":["Neural Mechanisms Underlying Hyperphagia in Prader\u2010Willi Syndrome"],"prefix":"10.1002","volume":"14","author":[{"given":"Laura M.","family":"Holsen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer R.","family":"Zarcone","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William M.","family":"Brooks","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Merlin G.","family":"Butler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Travis I.","family":"Thompson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jasjit S.","family":"Ahluwalia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicole L.","family":"Nollen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cary R.","family":"Savage","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,9,6]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.284.13.1650"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.288.14.1728"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.291.23.2847"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.282.16.1530"},{"key":"e_1_2_7_6_2","volume-title":"The Surgeon General's Call to Action to Prevent and Decrease Overweight and Obesity","author":"U.S. Department of Health and Human Services","year":"2001"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1467-789X.2003.00111.x"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.1320350306"},{"key":"e_1_2_7_9_2","first-page":"155","volume-title":"Neurodevelopmental Disorders: Syndromes With Known Genetic Etiologies","author":"Thompson T.","year":"1999"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2788.1995.tb00541.x"},{"key":"e_1_2_7_11_2","first-page":"527","article-title":"Measurement of excessive appetite and metabolic changes in Prader\u2010Willi syndrome","volume":"17","author":"Holland A. 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