Title

Visual attention modulates the integration of goal-relevant evidence and not value

Author(s)

Pradyumna Sepulveda Pradyumna Sepulveda (University College London)

Marius Usher Marius Usher (Tel Aviv University)

Ned Davies Ned Davies (University College London)

Amy Benson Amy Benson (University College London)

Pietro Ortoleva Pietro Ortoleva (Princeton University)

Abstract

When choosing between options, such as food items presented in plain view, people tend to choose the option they spend longer looking at. The prevailing interpretation is that visual attention increases value. However, in previous studies, ‘value’ was coupled to a behavioural goal, since subjects had to choose the item they preferred. This makes it impossible to discern if visual attention has an effect on value, or, instead, if attention modulates the information most relevant for the goal of the decision-maker. Here we present the results of two independent studies—a perceptual and a value-based task—that allow us to decouple value from goal-relevant information using specific task-framing. Combining psychophysics with computational modelling, we show that, contrary to the current interpretation, attention does not boost value, but instead it modulates goal-relevant information. This work provides a novel and more general mechanism by which attention interacts with choice.

Creation Date

2020-04

Section URL ID

Paper Number

2020-55

URL

https://www.biorxiv.org/content/10.1101/2020.04.14.031971v1.full.pdf

File Function

Jel

D70, D79

Keyword(s)

Value-based decision, Metacognition, Attention, Computational Modelling, Framing, Eye-tracking

Suppress

false

Series

13