Pas, P;
Custers, R;
Bijleveld, E;
Vink, M;
(2014)
Effort responses to suboptimal reward cues are related to striatal dopaminergic functioning.
Motiv Emot
, 38
(6)
759 - 770.
10.1007/s11031-014-9434-1.
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Abstract
Reward cues have been found to increase the investment of effort in tasks even when cues are presented suboptimally (i.e. very briefly), making them hard to consciously detect. Such effort responses to suboptimal reward cues are assumed to rely mainly on the mesolimbic dopamine system, including the ventral striatum. To provide further support for this assumption, we performed two studies investigating whether these effort responses vary with individual differences in markers of striatal dopaminergic functioning. Study 1 investigated the relation between physical effort responses and resting state eye-blink rate. Study 2 examined cognitive effort responses in relation to individually averaged error-related negativity. In both studies effort responses correlated with the markers only for suboptimal, but not for optimal reward cues. These findings provide further support for the idea that effort responses to suboptimal reward cues are mainly linked to the mesolimbic dopamine system, while responses to optimal reward cues also depend on higher-level cortical functions.
| Type: | Article |
|---|---|
| Title: | Effort responses to suboptimal reward cues are related to striatal dopaminergic functioning. |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s11031-014-9434-1 |
| Publisher version: | http://dx.doi.org/10.1007/s11031-014-9434-1 |
| Language: | English |
| Additional information: | © The Author(s) 2014 This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
| Keywords: | ERP, Motivation, Reward-sensitivity, Rewards, Subliminal priming |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1430521 |
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