- Title
- The computations that support simple decision-making: a comparison between the diffusion and urgency-gating models
- Creator
- Evans, Nathan J.; Hawkins, Guy E.; Boehm, Udo; Wagenmakers, Eric-Jan; Brown, Scott D.
- Relation
- Scientific Reports Vol. 7, no. 16433
- Publisher Link
- http://dx.doi.org/10.1038/s41598-017-16694-7
- Publisher
- Nature Publishing Group
- Resource Type
- journal article
- Date
- 2017
- Description
- We investigate a question relevant to the psychology and neuroscience of perceptual decision-making: whether decisions are based on steadily accumulating evidence, or only on the most recent evidence. We report an empirical comparison between two of the most prominent examples of these theoretical positions, the diffusion model and the urgency-gating model, via model-based qualitative and quantitative comparisons. Our findings support the predictions of the diffusion model over the urgency-gating model, and therefore, the notion that evidence accumulates without much decay. Gross qualitative patterns and fine structural details of the data are inconsistent with the notion that decisions are based only on the most recent evidence. More generally, we discuss some strengths and weaknesses of scientific methods that investigate quantitative models by distilling the formal models to qualitative predictions.
- Subject
- decision-making; diffusion; urgency-gating models; psychology; neuroscience
- Identifier
- http://hdl.handle.net/1959.13/1352704
- Identifier
- uon:30938
- Identifier
- ISSN:2045-2322
- Rights
- Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
- Language
- eng
- Full Text
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