Visual fixations and the computation and comparison of value in simple choice
Nature NeurosciencePublished 12 September 2010
Ian Krajbich, Carrie Armel, Antonio Rangel
Citations1,469
SJR quartileQ1
SJR score11.20
SNIP4.70
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TL;DR
A computational model of value-based binary choice in which fixations guide the comparison process and it is found that the model can quantitatively explain complex relationships between fixation patterns and choices, as well as several fixation-driven decision biases.
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.
Keywords
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