The Genetic and Environmental Etiology of Decision-Making: A Longitudinal Twin Study

Autor/inn/en	Tuvblad, Catherine; Gao, Yu; Wang, Pan; Raine, Adrian; Botwick, Theodore; Baker, Laura A.
Titel	The Genetic and Environmental Etiology of Decision-Making: A Longitudinal Twin Study
Quelle	In: Journal of Adolescence, 36 (2013) 2, S.245-255 (11 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0140-1971
DOI	10.1016/j.adolescence.2012.10.006
Schlagwörter	Genetics; Etiology; Environmental Influences; Twins; Longitudinal Studies; Decision Making; Age Differences; Individual Differences; Adolescents; Preadolescents; Risk + Suchen Sie Ihr Suchwort? Humangenetik; Ätiologie; Environmental influence; Umwelteinfluss; Twin; Zwilling; Longitudinal study; Longitudinal method; Longitudinal methods; Längsschnittuntersuchung; Decision-making; Entscheidungsfindung; Age; Difference; Age difference; Altersunterschied; Individueller Unterschied; Adolescent; Adolescence; Adoleszenz; Jugend; Jugendalter; Jugendlicher; Pre-adolescence; Präadoleszenz; Risiko
Abstract	The present study examined the genetic and environmental etiology of decision-making (Iowa Gambling Task; Bechara, Damasio, Damasio, & Anderson, 1994), in a sample of twins at ages 11-13, 14-15, and 16-18 years. The variance across five 20-trial blocks could be explained by a latent "decision-making" factor within each of the three times of IGT administration. This latent factor was modestly influenced by genetic factors, explaining 35%, 20% and 46% of the variance within each of the three times of IGT administration. The remaining variance was explained by the non-shared environment (65%, 80% and 54%, respectively). Block-specific non-shared environmental influences were also observed. The stability of decision-making was modest across development. Youth showed a trend to choose less risky decks at later ages, suggesting some improvement in task performance across development. These findings contribute to our understanding of decision-making by highlighting the particular importance of each person's unique experiences on individual differences. (Contains 3 tables and 4 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10