Increased ventral-striatal activity during monetary decision making is a marker of problem poker gambling severity

Addiction Biology
Damien BreversAntoine Bechara

Abstract

The aim of this study was to examine the impact of different neural systems on monetary decision making in frequent poker gamblers, who vary in their degree of problem gambling. Fifteen frequent poker players, ranging from non-problem to high-problem gambling, and 15 non-gambler controls were scanned using functional magnetic resonance imaging (fMRI) while performing the Iowa Gambling Task (IGT). During IGT deck selection, between-group fMRI analyses showed that frequent poker gamblers exhibited higher ventral-striatal but lower dorsolateral prefrontal and orbitofrontal activations as compared with controls. Moreover, using functional connectivity analyses, we observed higher ventral-striatal connectivity in poker players, and in regions involved in attentional/motor control (posterior cingulate), visual (occipital gyrus) and auditory (temporal gyrus) processing. In poker gamblers, scores of problem gambling severity were positively associated with ventral-striatal activations and with the connectivity between the ventral-striatum seed and the occipital fusiform gyrus and the middle temporal gyrus. Present results are consistent with findings from recent brain imaging studies showing that gambling disorder is associated with he...Continue Reading

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Citations

Oct 28, 2018·European Archives of Psychiatry and Clinical Neuroscience·Ahmet Zihni SoyataSacit Karamürsel
May 6, 2019·Journal of Gambling Studies·Nicola Farrell, Benjamin R Walker
Jun 26, 2020·Frontiers in Neuroscience·Julie GiustinianiDamien Gabriel
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Jan 26, 2021·Frontiers in Neuroscience·Edward J GorzelańczykAleksandra Kawala-Sterniuk

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