Blunted ventral striatal responses to anticipated rewards foreshadow problematic drug use in novelty-seeking adolescents

Christian Büchel 1 Jan Peters 2 Tobias Banaschewski 3 Arun Bokde 4 Uli Bromberg 5 Patricia Conrod 6 Herta Flor 7 Dimitri Papadopoulos 8 Hugh Garavan 9 Penny Gowland 10 Andreas Heinz 11 Henrik Walter 11 Bernd Ittermann 11 Karl Mann 7 Jean-Luc Martinot 12 Luise Poustka 7 Marcella Rietschel 13 Trevor Robbins 14 Michael Smolka Juergen Gallinat 11 Gunter Schumann 15 Brian Knutson
1 Institute for Systems Neuroscience
2 IAS - Intelligent Autonomous Systems
3 Department of Child and Adolescent Psychiatry and Psychotherapy [Mannheim]
4 Trinity College Dublin
5 UKE - Universitaetsklinikum Hamburg-Eppendorf = University Medical Center Hamburg-Eppendorf [Hamburg]
6 Institute of Psychiatry, Psychology & Neuroscience, King's College London
7 Universität Mannheim [Mannheim]
8 NEUROSPIN - Service NEUROSPIN
9 University of Vermont [Burlington]
10 Sir Peter Mansfield Magnetic Resonance Centre [Nottingham]
11 Charité - Universitätsmedizin Berlin / Charite - University Medicine Berlin
12 U1000 - Neuroimagerie en psychiatrie
13 Department of Genetic Epidemiology in Psychiatry [Mannhein]
14 Department of Experimental Psychology
15 Göttingen Zentrum Geowissenschaften
Abstract : Novelty-seeking tendencies in adolescents may promote innovation as well as problematic impulsive behaviour, including drug abuse. Previous research has not clarified whether neural hyper- or hyporesponsiveness to anticipated rewards promotes vulnerability in these individuals. Here we use a longitudinal design to track 144 novelty-seeking adolescents at age 14 and 16 to determine whether neural activity in response to anticipated rewards predicts problematic drug use. We find that diminished BOLD activity in mesolimbic (ventral striatal and midbrain) and prefrontal cortical (dorsolateral prefrontal cortex) regions during reward anticipation at age 14 predicts problematic drug use at age 16. Lower psychometric conscientiousness and steeper discounting of future rewards at age 14 also predicts problematic drug use at age 16, but the neural responses independently predict more variance than psychometric measures. Together, these findings suggest that diminished neural responses to anticipated rewards in novelty-seeking adolescents may increase vulnerability to future problematic drug use.
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Christian Büchel, Jan Peters, Tobias Banaschewski, Arun Bokde, Uli Bromberg, et al.. Blunted ventral striatal responses to anticipated rewards foreshadow problematic drug use in novelty-seeking adolescents. Nature Communications, Nature Publishing Group, 2017, 8, pp.14140. ⟨10.1038/ncomms14140⟩. ⟨cea-02138905⟩

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