TY - JOUR PY - 2016// TI - Prediction of alcohol drinking in adolescents: personality-traits, behavior, brain responses, and genetic variations in the context of reward sensitivity JO - Biological psychology A1 - Heinrich, Angela A1 - Müller, Kathrin U. A1 - Banaschewski, Tobias A1 - Barker, Gareth J. A1 - Bokde, Arun L. W. A1 - Bromberg, Uli A1 - Büchel, Christian A1 - Conrod, Patricia J. A1 - Fauth-Bühler, Mira A1 - Papadopoulos, Dimitri A1 - Gallinat, Jürgen A1 - Garavan, Hugh A1 - Gowland, Penny A1 - Heinz, Andreas A1 - Ittermann, Bernd A1 - Mann, Karl A1 - Martinot, Jean-Luc A1 - Paus, Tomas A1 - Pausova, Zdenka A1 - Smolka, Michael A1 - Ströhle, Andreas A1 - Rietschel, Marcella A1 - Flor, Herta A1 - Schumann, Gunter A1 - Nees, Frauke SP - 79 EP - 87 VL - 118 IS - N2 - Adolescence is a time that can set the course of alcohol abuse later in life. Sensitivity to reward on multiple levels is a major factor in this development. We examined 736 adolescents from the IMAGEN longitudinal study for alcohol drinking during early (mean age=14.37) and again later (mean age=16.45) adolescence. Conducting structural equation modeling we evaluated the contribution of reward-related personality traits, behavior, brain responses and candidate genes. Personality seems to be most important in explaining alcohol drinking in early adolescence. However, genetic variations in ANKK1 (rs1800497) and HOMER1 (rs7713917) play an equal role in predicting alcohol drinking two years later and are most important in predicting the increase in alcohol consumption. We hypothesize that the initiation of alcohol use may be driven more strongly by personality while the transition to increased alcohol use is more genetically influenced.

Copyright © 2016. Published by Elsevier B.V.

Language: en

LA - en SN - 0301-0511 UR - http://dx.doi.org/10.1016/j.biopsycho.2016.05.002 ID - ref1 ER -