An mTph2 SNP gives rise to alterations in extracellular 5-HT levels, but not in performance on a delayed-reinforcement task.

Abstract excerpt

5-Hydroxytryptamine (5-HT) is an important neurotransmitter mediating many aspects of cognition and behaviour. One psychology in which 5-HT plays an important role is impulsive responding. Recently, we have demonstrated that variation in an aspect of impulsive behaviour, namely delayed gratification, has a clear genetic contribution. Here, we examined the neurobiological relevance of a recently discovered single...

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