Details

Autor(en) / Beteiligte

• Dinu-Biringer, Ramona
• Nees, Frauke
• Falquez, Rosalux
• Berger, Moritz
• Barnow, Sven

Titel

Different roads to the same destination – The impact of impulsivity on decision-making processes under risk within a rewarding context in a healthy male sample

Ist Teil von

• Psychiatry research. Neuroimaging, 2016-02, Vol.248, p.12-22

Ort / Verlag

Netherlands: Elsevier Ireland Ltd

Erscheinungsjahr

2016

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Abstract The results of research about the influences of impulsivity on decision-making in situations of risk have been inconsistent. In this study, we used functional magnetic resonance imaging to examine the neural correlates of decision-making under risk in 12 impulsive, as defined by the Barratt Impulsiveness Scale-11, and 13 normal men. Although both groups showed similar decision-making behavior, neural activation regarding decision-making processes differed significantly. Impulsive persons revealed stronger activation in the (ventro-) medial prefrontal cortex and less deactivation of the orbitofrontal cortex while playing for potential gains. These brain regions might be associated with the emotional components of decision-making processes. Significant differences in brain areas linked to cognitive decision-making components were not found. This activation pattern might be seen as an indication for a hypersensitivity to rewarding cues in impulsive persons and might be linked to the propensity for inappropriate risk-taking behavior in persons with more extreme impulsivity levels, especially in situations in which they have a strong emotional involvement in the decision process.