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Rewards modulate saccade latency but not exogenous spatial attention.

Dunne, S. and Ellison, A. and Smith, D.T. (2015) 'Rewards modulate saccade latency but not exogenous spatial attention.', Frontiers in psychology., 6 . p. 1080.


The eye movement system is sensitive to reward. However, whilst the eye movement system is extremely flexible, the extent to which changes to oculomotor behavior induced by reward paradigms persist beyond the training period or transfer to other oculomotor tasks is unclear. To address these issues we examined the effects of presenting feedback that represented small monetary rewards to spatial locations on the latency of saccadic eye movements, the time-course of learning and extinction of the effects of rewarding saccades on exogenous spatial attention and oculomotor inhibition of return. Reward feedback produced a relative facilitation of saccadic latency in a stimulus driven saccade task which persisted for three blocks of extinction trials. However, this hemifield-specific effect failed to transfer to peripheral cueing tasks. We conclude that rewarding specific spatial locations is unlikely to induce long-term, systemic changes to the human oculomotor or attention systems.

Item Type:Article
Keywords:Saccade, Instrumental, Reward, Learning, IOR, Exogenous attention, Oculomotor, Premotor theory.
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Publisher statement:© 2015 Dunne, Ellison and Smith. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Date accepted:13 July 2015
Date deposited:13 October 2015
Date of first online publication:28 July 2015
Date first made open access:No date available

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