Impaired frontostriatal connectivity in alcohol-dependent patients (see Park et al., 2010).
A: A functional connectivity analysis with ventral striatum as seed region revealed an impaired connectivity with the dorsolateral prefrontal cortex (DLPFC) during a reversal learning paradigm.
B: A multiple regression analysis showed a negative relationship between learning speed and the frontostriatal connectivity modulation: The smaller the feedback-related connectivity modulation, the more trials were required to learn the rule.
C: The greater the self-reported craving for alcohol the less pronounced was the connectivity modulation.