Rewards Modulate Saccade Latency but Not Exogenous Spatial Attention
Overview
Affiliations
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.
Wolf C, Lappe M Atten Percept Psychophys. 2022; 85(3):930-948.
PMID: 36289140 PMC: 10066132. DOI: 10.3758/s13414-022-02587-z.
Wolf C, Lappe M Cogn Neurodyn. 2021; 15(4):547-568.
PMID: 34367360 PMC: 8286912. DOI: 10.1007/s11571-020-09661-y.
Pelzer E, Dillenburger B, Grundmann S, Iliaev V, Aschenberg S, Melzer C NPJ Parkinsons Dis. 2020; 6:5.
PMID: 31970287 PMC: 6969176. DOI: 10.1038/s41531-019-0107-3.
Casteau S, Smith D Atten Percept Psychophys. 2020; 82(2):518-532.
PMID: 31942703 PMC: 7246251. DOI: 10.3758/s13414-019-01949-4.
Reward learning biases the direction of saccades.
Liao M, Anderson B Cognition. 2019; 196:104145.
PMID: 31770659 PMC: 7028500. DOI: 10.1016/j.cognition.2019.104145.