Article 2020

Uncertainty in learning, choice and visual fixation

{Uncertainty plays a critical role in reinforcement learning and decision making. However, exactly how it influences behavior remains unclear. Multiarmed-bandit tasks offer an ideal test bed, since computational tools such as approximate Kalman filters can closely characterize the interplay between trial-by-trial values, uncertainty, learning, and choice. To gain additional insight into learning and choice processes, we obtained data from subjects\textquoteright overt allocation of gaze. The estimated value and estimation uncertainty of options influenced what subjects looked at before choosing; these same quantities also influenced choice, as additionally did fixation itself. A momentary measure of uncertainty in the form of absolute prediction errors determined how long participants looked at the obtained outcomes. These findings affirm the importance of uncertainty in multiple facets of behavior and help delineate its effects on decision making.}

Author(s): Stojić, H and Orquin, J and Dayan, P and Dolan, R and Speekenbrink, M
Journal: {Proceedings of the National Academy of Sciences of the United States of America}
Volume: 117
Number (issue): 6
Pages: 3291--3300
Year: 2020
Publisher: National Academy of Sciences
Bibtex Type: Article (article)
DOI: 10.1073/pnas.1911348117
Address: Washington, D.C.
Electronic Archiving: grant_archive

BibTex

@article{item_3152733,
  title = {{Uncertainty in learning, choice and visual fixation}},
  journal = {{Proceedings of the National Academy of Sciences of the United States of America}},
  abstract = {{Uncertainty plays a critical role in reinforcement learning and decision making. However, exactly how it influences behavior remains unclear. Multiarmed-bandit tasks offer an ideal test bed, since computational tools such as approximate Kalman filters can closely characterize the interplay between trial-by-trial values, uncertainty, learning, and choice. To gain additional insight into learning and choice processes, we obtained data from subjects\textquoteright overt allocation of gaze. The estimated value and estimation uncertainty of options influenced what subjects looked at before choosing; these same quantities also influenced choice, as additionally did fixation itself. A momentary measure of uncertainty in the form of absolute prediction errors determined how long participants looked at the obtained outcomes. These findings affirm the importance of uncertainty in multiple facets of behavior and help delineate its effects on decision making.}},
  volume = {117},
  number = {6},
  pages = {3291--3300},
  publisher = {National Academy of Sciences},
  address = {Washington, D.C.},
  year = {2020},
  slug = {item_3152733},
  author = {Stoji\'c, H and Orquin, J and Dayan, P and Dolan, R and Speekenbrink, M}
}