The brain’s response to reward anticipation and depression in adolescence

• Titel: The brain’s response to reward anticipation and depression in adolescence
• Titelzusatz: dimensionality, specificity, and longitudinal predictions in a community-based sample
• Mitwirkende: Stringaris, Argyris [VerfasserIn]
• Mitwirkende: Poustka, Luise [VerfasserIn]
• Mitwirkende: Banaschewski, Tobias [VerfasserIn]
• Mitwirkende: Flor, Herta
• Mitwirkende: Smolka, Michael [VerfasserIn]
• Verf.angabe: Argyris Stringaris, Pablo Vidal-Ribas Belil, Eric Artiges, Hervé Lemaitre, Fanny Gollier-Briant, Selina Wolke, Hélène Vulser, Ruben Miranda, Jani Penttilä, Maren Struve, Tahmine Fadai, Viola Kappel, Yvonne Grimmer, Robert Goodman, Luise Poustka, Patricia Conrod, Anna Cattrell, Tobias Banaschewski, Arun L.W. Bokde, Uli Bromberg, Christian Büchel, Herta Flor, Vincent Frouin, Juergen Gallinat, Hugh Garavan, Penny Gowland, Andreas Heinz, Bernd Ittermann, Frauke Nees, Dimitri Papadopoulos, Tomas Paus, Michael N. Smolka, Henrik Walter, Rob Whelan, Jean-Luc Martinot, Gunter Schumann, Marie-Laure Paillère-Martinot
• E-Jahr: 2015
• Jahr: December 01, 2015
• Umfang: 9 S.
• Fussnoten: Gesehen am 07.12.2017
• Titel Quelle: Enthalten in: The American journal of psychiatry
• Ort Quelle: Stanford, Calif. : HighWire Press, 1844
• Jahr Quelle: 2015
• Band/Heft Quelle: 172(2015), 12, Seite 1215-1223
• ISSN Quelle: 1535-7228
• DOI: doi:10.1176/appi.ajp.2015.14101298
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1566140161

Abstract

Objective:The authors examined whether alterations in the brain’s reward network operate as a mechanism across the spectrum of risk for depression. They then tested whether these alterations are specific to anhedonia as compared with low mood and whether they are predictive of depressive outcomes.Method:Functional MRI was used to collect blood-oxygen-level-dependent (BOLD) responses to anticipation of reward in the monetary incentive task in 1,576 adolescents in a community-based sample. Adolescents with current subthreshold depression and clinical depression were compared with matched healthy subjects. In addition, BOLD responses were compared across adolescents with anhedonia, low mood, or both symptoms, cross-sectionally and longitudinally.Results:Activity in the ventral striatum was reduced in participants with subthreshold and clinical depression relative to healthy comparison subjects. Low ventral striatum activation predicted transition to subthreshold or clinical depression in previously healthy adolescents at 2-year follow-up. Brain responses during reward anticipation decreased in a graded manner between healthy adolescents, adolescents with current or future subthreshold depression, and adolescents with current or future clinical depression. Low ventral striatum activity was associated with anhedonia but not low mood; however, the combined presence of both symptoms showed the strongest reductions in the ventral striatum in all analyses.Conclusions:The findings suggest that reduced striatal activation operates as a mechanism across the risk spectrum for depression. It is associated with anhedonia in healthy adolescents and is a behavioral indicator of positive valence systems, consistent with predictions based on the Research Domain Criteria.