Abstract
AbstractSpontaneous eye blink rate (sEBR) has been linked to striatal dopamine function and to how individuals make value-based choices after a period of reinforcement learning (RL). While sEBR is thought to reflect how individuals learn from the negative outcomes of their choices, this idea has not been tested explicitly. This study assessed how individual differences in sEBR relate to learning by focusing on the cognitive processes that drive RL. Using Bayesian latent mixture modelling to quantify the mapping between RL behaviour and its underlying cognitive processes, we were able to differentiate low and high sEBR individuals at the level of these cognitive processes. Further inspection of these cognitive processes indicated that sEBR uniquely indexed explore-exploit tendencies during RL: lower sEBR predicted exploitative choices for high valued options, whereas higher sEBR predicted exploration of lower value options. This relationship was additionally supported by a network analysis where, notably, no link was observed between sEBR and how individuals learned from negative outcomes. Our findings challenge the notion that sEBR predicts learning from negative outcomes during RL, and suggest that sEBR predicts individual explore-exploit tendencies. These then influence value sensitivity during choices to support successful performance when facing uncertain reward.
Publisher
Springer Science and Business Media LLC
Reference76 articles.
1. Sutton, R. S. & Barto, A. G. Reinforcement Learning: An Introduction. (The MIT Press, Cambridge, Massachussets, 1998).
2. Glimcher, P. W. Understanding dopamine and reinforcement learning: the dopamine reward prediction error hypothesis. Proceedings of the National Academy of Sciences 108(Suppl 3), 15647–15654 (2011).
3. Morris, G., Nevet, A., Arkadir, D., Vaadia, E. & Bergman, H. Midbrain dopamine neurons encode decisions for future action. Nature Neuroscience 9, 1057–1063 (2006).
4. Karson, C. N. Spontaneous eye-blink rates and dopaminergic systems. Brain 106, 643–653 (1983).
5. Slagter, H. A., Georgopoulou, K. & Frank, M. J. Spontaneous eye blink rate predicts learning from negative, but not positive, outcomes. Neuropsychologia 71, 126–132 (2015).
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