{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T12:38:48Z","timestamp":1788871128748,"version":"build-2803163510"},"reference-count":43,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2014,6,25]],"date-time":"2014-06-25T00:00:00Z","timestamp":1403654400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000025","name":"National Institute of Mental Health","doi-asserted-by":"crossref","award":["1 R01 MH0820-54"],"award-info":[{"award-number":["1 R01 MH0820-54"]}],"id":[{"id":"10.13039\/100000025","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/100000025","name":"National Institute of Mental Health","doi-asserted-by":"crossref","award":["5-R01MH092377-02"],"award-info":[{"award-number":["5-R01MH092377-02"]}],"id":[{"id":"10.13039\/100000025","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl J Eating Disorders"],"published-print":{"date-parts":[[2014,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Mean\u2010levels of thin\u2010ideal internalization increase during adolescence and pubertal development, but it is unknown whether these phenotypic changes correspond to developmental changes in etiological (i.e., genetic and environmental) risk. Given the limited knowledge on risk for thin\u2010ideal internalization, research is needed to guide the identification of specific types of risk factors during critical developmental periods. The present twin study examined genetic and environmental influences on thin\u2010ideal internalization across adolescent and pubertal development.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Method<\/jats:title>\n                    <jats:p>Participants were 1,064 female twins (ages 8\u201325 years) from the Michigan State University Twin Registry. Thin\u2010ideal internalization and pubertal development were assessed using self\u2010report questionnaires. Twin moderation models were used to examine if age and\/or pubertal development moderate genetic and environmental influences on thin\u2010ideal internalization.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Phenotypic analyses indicated significant increases in thin\u2010ideal internalization across age and pubertal development. Twin models suggested no significant differences in etiologic effects across development. Nonshared environmental influences were most important in the etiology of thin\u2010ideal internalization, with genetic, shared environmental, and nonshared environmental accounting for approximately 8%, 15%, and 72%, respectively, of the total variance.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>Despite mean\u2010level increases in thin\u2010ideal internalization across development, the relative influence of genetic versus environmental risk did not differ significantly across age or pubertal groups. The majority of variance in thin\u2010ideal internalization was accounted for by environmental factors, suggesting that mean\u2010level increases in thin\u2010ideal internalization may reflect increases in the magnitude\/strength of environmental risk across this period. Replication is needed, particularly with longitudinal designs that assess thin\u2010ideal internalization across key developmental phases. \u00a9 2014 Wiley Periodicals, Inc. (Int J Eat Disord 2014; 47:773\u2013783)<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/eat.22321","type":"journal-article","created":{"date-parts":[[2014,6,25]],"date-time":"2014-06-25T03:20:50Z","timestamp":1403666450000},"page":"773-783","source":"Crossref","is-referenced-by-count":35,"title":["Genetic and environmental influences on thin\u2010ideal internalization across puberty and preadolescent, adolescent, and young adult development"],"prefix":"10.1002","volume":"47","author":[{"given":"Jessica L.","family":"Suisman","sequence":"first","affiliation":[{"name":"Department of Psychology Michigan State University East Lansing Michigan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. 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