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Gaze-dependent evidence accumulation predicts multi-alternative risky choice behaviour.

Publication ,  Journal Article
Molter, F; Thomas, AW; Huettel, SA; Heekeren, HR; Mohr, PNC
Published in: PLoS computational biology
July 2022

Choices are influenced by gaze allocation during deliberation, so that fixating an alternative longer leads to increased probability of choosing it. Gaze-dependent evidence accumulation provides a parsimonious account of choices, response times and gaze-behaviour in many simple decision scenarios. Here, we test whether this framework can also predict more complex context-dependent patterns of choice in a three-alternative risky choice task, where choices and eye movements were subject to attraction and compromise effects. Choices were best described by a gaze-dependent evidence accumulation model, where subjective values of alternatives are discounted while not fixated. Finally, we performed a systematic search over a large model space, allowing us to evaluate the relative contribution of different forms of gaze-dependence and additional mechanisms previously not considered by gaze-dependent accumulation models. Gaze-dependence remained the most important mechanism, but participants with strong attraction effects employed an additional similarity-dependent inhibition mechanism found in other models of multi-alternative multi-attribute choice.

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Published In

PLoS computational biology

DOI

EISSN

1553-7358

ISSN

1553-734X

Publication Date

July 2022

Volume

18

Issue

7

Start / End Page

e1010283

Related Subject Headings

  • Risk-Taking
  • Reaction Time
  • Probability
  • Humans
  • Fixation, Ocular
  • Eye Movements
  • Choice Behavior
  • Bioinformatics
  • 08 Information and Computing Sciences
  • 06 Biological Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Molter, F., Thomas, A. W., Huettel, S. A., Heekeren, H. R., & Mohr, P. N. C. (2022). Gaze-dependent evidence accumulation predicts multi-alternative risky choice behaviour. PLoS Computational Biology, 18(7), e1010283. https://doi.org/10.1371/journal.pcbi.1010283
Molter, Felix, Armin W. Thomas, Scott A. Huettel, Hauke R. Heekeren, and Peter N. C. Mohr. “Gaze-dependent evidence accumulation predicts multi-alternative risky choice behaviour.PLoS Computational Biology 18, no. 7 (July 2022): e1010283. https://doi.org/10.1371/journal.pcbi.1010283.
Molter F, Thomas AW, Huettel SA, Heekeren HR, Mohr PNC. Gaze-dependent evidence accumulation predicts multi-alternative risky choice behaviour. PLoS computational biology. 2022 Jul;18(7):e1010283.
Molter, Felix, et al. “Gaze-dependent evidence accumulation predicts multi-alternative risky choice behaviour.PLoS Computational Biology, vol. 18, no. 7, July 2022, p. e1010283. Epmc, doi:10.1371/journal.pcbi.1010283.
Molter F, Thomas AW, Huettel SA, Heekeren HR, Mohr PNC. Gaze-dependent evidence accumulation predicts multi-alternative risky choice behaviour. PLoS computational biology. 2022 Jul;18(7):e1010283.

Published In

PLoS computational biology

DOI

EISSN

1553-7358

ISSN

1553-734X

Publication Date

July 2022

Volume

18

Issue

7

Start / End Page

e1010283

Related Subject Headings

  • Risk-Taking
  • Reaction Time
  • Probability
  • Humans
  • Fixation, Ocular
  • Eye Movements
  • Choice Behavior
  • Bioinformatics
  • 08 Information and Computing Sciences
  • 06 Biological Sciences