Brain Connectivity May Flag IGD Risk

Impulsivity-linked brain patterns identified a subtype with a markedly higher 2-year risk for developing internet gaming disorder.

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A neuroimaging-defined subtype showed a 24% risk for developing internet gaming disorder (IGD) compared to 7% in a lower-risk subtype over two years.
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The higher-risk subtype exhibited reduced orbitofrontal connectivity and increased occipital connectivity, linked to impulsivity and control processes.
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Baseline impulsivity, particularly in cognitive and nonplanning domains, was greater in the higher-risk group, correlating with increased IGD severity at follow-up.
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Combining resting-state functional connectivity features with impulsivity scores improved prediction of baseline IGD severity compared to using either alone.
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The study suggests impulsivity-linked brain connectivity may aid in early identification of individuals at risk for IGD, warranting further validation.

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