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How Does the Brain Compute and Compare Values at the Time of Decision-Making?

How Does the Brain Compute and Compare Values at the Time of Decision-Making?

This video was recorded at 24th Annual Conference on Neural Information Processing Systems (NIPS), Vancouver 2010. 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 exact nature of the comparison process in value-based decision-making, or about the role that the visual fixations play in this process. We propose a computational model in which fixations guide the comparison process in simple binary value-based choice and test it using eye-tracking. We present results from an eye-tracking choice experiment showing that the model is able to quantitatively explain complex relationships between fixation patterns and choices, as well as several fixation-driven... Show More
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