Krajbich, Ian and Armel, Carrie and Rangel, Antonio (2010) Visual fixations and the computation and comparison of value in simple choice. Nature Neuroscience, 13 (10). pp. 1292-1298. ISSN 1097-6256 http://resolver.caltech.edu/CaltechAUTHORS:20101026-084147174
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Abstract
Most organisms facing a choice between multiple stimuli will look repeatedly at them, presumably implementing a comparison process between the items' values. Little is known about the nature of the comparison process in value-based decision-making or about the role of visual fixations in this process. We created a computational model of value-based binary choice in which fixations guide the comparison process and tested it on humans using eye-tracking. We found that the model can quantitatively explain complex relationships between fixation patterns and choices, as well as several fixation-driven decision biases.
| Item Type: | Article | ||||
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| Additional Information: | © 2010 Nature Publishing Group. Received 23 February; accepted 17 August; published online 12 September 2010. We thank E. Johnson, P. Bossaerts and C. Koch for comments and J. Pulst-Korenberg for help with data collection. This work received financial support from the Moore Foundation. Author Contributions: A.R. and C.A. devised the experiment. I.K. programmed and conducted the experiment, performed the analyses and co-wrote the manuscript. A.R. designed the model, co-wrote the manuscript and supervised the project. | ||||
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| Record Number: | CaltechAUTHORS:20101026-084147174 | ||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20101026-084147174 | ||||
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||
| ID Code: | 20525 | ||||
| Collection: | CaltechAUTHORS | ||||
| Deposited By: | Tony Diaz | ||||
| Deposited On: | 23 Nov 2010 22:12 | ||||
| Last Modified: | 26 Dec 2012 12:33 |
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