Neural reward processing is modulated by approach

• Verfasst von: Simon, Joe J. [VerfasserIn]
• Verfasst von: Walther, Stephan [VerfasserIn]
• Verfasst von: Fiebach, Christian [VerfasserIn]
• Verfasst von: Friederich, Hans-Christoph [VerfasserIn]
• Verfasst von: Stippich, Christoph [VerfasserIn]
• Verfasst von: Weisbrod, Matthias [VerfasserIn]
• Verfasst von: Kaiser, Stefan [VerfasserIn]
• Titel: Neural reward processing is modulated by approach
• Titelzusatz: and avoidance-related personality traits
• Verf.angabe: Joe J. Simon, Stephan Walther, Christian J. Fiebach, Hans-Christoph Friederich, Christoph Stippich, Matthias Weisbrod, Stefan Kaiser
• Jahr: 2010
• Umfang: 7 S.
• Fussnoten: Available online 18 September 2009 ; Gesehen am 01.08.2023
• Titel Quelle: Enthalten in: NeuroImage
• Ort Quelle: Orlando, Fla. : Academic Press, 1992
• Jahr Quelle: 2010
• Band/Heft Quelle: 49(2010), 2, Seite 1868-1874
• ISSN Quelle: 1095-9572
• DOI: doi:10.1016/j.neuroimage.2009.09.016
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1854065742

Abstract

The neural processing of reward can be differentiated into two sub-components with different functions, “wanting” (i.e., the expectation of a reward which includes appetitive and motivational components) and “liking” (i.e., the hedonic impact experienced during the receipt of a reward), involving distinct neural systems. We hypothesize that variability in neural reward processing previously observed in healthy subjects could reflect inter-individual differences in personality. Therefore, the aim of this study was to investigate how the neural processing during expectation and reception of a reward depends on interpersonal differences in reward sensitivity, more specifically the tendency to approach vs. avoid reward-related situations. We employed event-related functional magnetic resonance imaging during a monetary incentive delay task. Subjects with a high approach motivation showed more activation of the Ventral Striatum (VS) during the receipt of a reward, and more medial orbitofrontal activity during both the receipt and omission of a reward. Subjects with a high behavioral inhibition showed less activation in the VS during the receipt of a reward. These findings indicate that the tendency to approach or avoid reward-related situations exhibits a distinct relation with neural reward processing. Specifically, subjects with high behavioral approach appear to be sensitive mainly to positive outcomes and to a lesser extent to the omissions of rewards, whereas subjects with low behavioral approach as well as those with a high inhibition tendency display a blunted response to rewards.