The Attentional Drift Diffusion Model of Simple Perceptual Decision-Making

Perceptual decisions requiring the comparison of spatially distributed stimuli that are fixated sequentially might be influenced by fluctuations in visual attention. We used two psychophysical tasks with human subjects to investigate the extent to which visual attention influences simple perceptual...

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Bibliographic Details
Published inFrontiers in neuroscience Vol. 11; p. 468
Main Authors Tavares, Gabriela, Perona, Pietro, Rangel, Antonio
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Research Foundation 24.08.2017
Frontiers Media S.A
Subjects
Algorithms
Attention
Bias
Computer applications
Decision making
Drift
drift-diffusion model
eye-tracking
Neurobiology
Neuroscience
Neurosciences
perception
Psychophysics
Trends
Visual perception
United States > US
California
attention
eye-tracking
decision-making
drift-diffusion model
perception
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Summary:Perceptual decisions requiring the comparison of spatially distributed stimuli that are fixated sequentially might be influenced by fluctuations in visual attention. We used two psychophysical tasks with human subjects to investigate the extent to which visual attention influences simple perceptual choices, and to test the extent to which the attentional Drift Diffusion Model (aDDM) provides a good computational description of how attention affects the underlying decision processes. We find evidence for sizable attentional choice biases and that the aDDM provides a reasonable quantitative description of the relationship between fluctuations in visual attention, choices and reaction times. We also find that exogenous manipulations of attention induce choice biases consistent with the predictions of the model.
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Edited by: Bernd Weber, University of Bonn, Germany
This article was submitted to Decision Neuroscience, a section of the journal Frontiers in Neuroscience
Reviewed by: Marius Usher, Tel Aviv University, Israel; Sabine Windmann, Goethe University Frankfurt, Germany
ISSN:1662-453X
1662-4548
1662-453X
DOI:10.3389/fnins.2017.00468