The dynamics of explore-exploit decisions suggest a threshold mechanism for reduced random exploration in older adults
Caroline E. Phelps, Alec Frisvold, Meghna Sreeram, Victoria Antoniou, Larissa E. Oliveira, Sierra R. Tooke, Yan Z. Lu, Anna Catherine Lemon, Joseph U. Fraire, Alexe G. Delval, Betsy K. Smith, Devynn Hailey Spangenberg, Madelien Nicola Mithelavage, Michelle Nhi Ngo, Elizabeth MO. Keller, , Robert C. Wilson
This paper uses a drift diffusion model to show that older adults have higher decision thresholds, which may compensate for lower signal-to-noise ratios, leading to reduced random exploration.
PLoS Computational Biology · Dec 16, 2025Peer-reviewedNeuroscience