Effects of salience and reward information during saccadic decisions under risk
JOSA A, Vol. 26, Issue 11, pp. B1-B13 (2009)
http://dx.doi.org/10.1364/JOSAA.26.0000B1
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Abstract
Previous work has demonstrated that humans select visuomotor strategies maximizing expected gain during speeded hand movements under risk; see, e.g., [
Trends Cogn. Sci.
12, 291 (2008)
]; [
Glimcher et al., eds., Neuroeconomics: Decision Making and the Brain (Elsevier, 2008), p. 95
]. Here we report a similar study in which we recorded saccadic eye movements in a saccadic decision task in which monetary rewards and losses were associated with the final position of the eye movement. Saccades into a color-coded target region won points; saccades into a partially overlapping or abutting penalty region could yield a loss. The points won during the experiment were converted into a small monetary bonus at the end of the experiment. We compared participants’ winnings to the score of an optimal observer maximizing expected gain that was calculated based on each participant’s saccadic endpoint variability, similar to a recent model of optimal movement planning under risk [
J. Opt. Soc. Am. A
20, 1419 (2003)
]; [
Spatial Vis.
16, 255 (2003)
]. We used three different experimental paradigms with different interstimulus intervals (Gap, No Gap, and Overlap) to manipulate saccadic latencies and a fourth experiment (Memory) with a prolonged
© 2009 Optical Society of America
OCIS Codes
(330.2210) Vision, color, and visual optics : Vision - eye movements
(330.4060) Vision, color, and visual optics : Vision modeling
History
Original Manuscript: March 11, 2009
Revised Manuscript: June 26, 2009
Manuscript Accepted: July 6, 2009
Published: August 18, 2009
Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics
Citation
Martin Stritzke, Julia Trommershäuser, and Karl R. Gegenfurtner, "Effects of salience and reward information during saccadic decisions under risk," J. Opt. Soc. Am. A 26, B1-B13 (2009)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-26-11-B1
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