Individual differences in reward-prediction-error: extraversion and feedback-related negativity

Smillie, Luke D.; Cooper, Andrew and Pickering, Alan. 2011. Individual differences in reward-prediction-error: extraversion and feedback-related negativity. Social Cognitive and Affective Neuroscience, 6(5), pp. 646-652. ISSN 1749-5016 [Article]

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Abstract or Description

Medial frontal scalp-recorded negativity occurring ∼200–300 ms post-stimulus [known as feedback-related negativity (FRN)] is attenuated following unpredicted reward and potentiated following unpredicted non-reward. This encourages the view that FRN may partly reflect dopaminergic ‘reward–prediction–error’ signalling. We examined the influence of a putatively dopamine-based personality trait, extraversion (N = 30), and a dopamine-related gene polymorphism, DRD2/ANKK1 (N = 24), on FRN during an associative reward-learning paradigm. FRN was most negative following unpredicted non-reward and least-negative following unpredicted reward. A difference wave contrasting these conditions was significantly more pronounced for extraverted participants than for introverts, with a similar but non-significant trend for participants carrying at least one copy of the A1 allele of the DRD2/ANKK1 gene compared with those without the allele. Extraversion was also significantly higher in A1 allele carriers. Results have broad relevance to neuroscience and personality research concerning reward processing and dopamine function.

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feedback-related negativity reward–prediction–error extraversion dopamine DRD2/ANKK1

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October 2011Published

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Date Deposited:

02 Feb 2012 15:59

Last Modified:

29 Apr 2020 15:31

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Yes, this version has been peer-reviewed.


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