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. 2020 Aug 11;9:e54051. doi: 10.7554/eLife.54051

Table 2. Prior mean and variance of the perceptual and response model parameters.

Model Prior mean Prior variance
Perceptual models:
Three-level HGF κa, κc 0.5 1
ϑa, ϑc 0.55 1
Normative HGF κa, κc 0.5 0
ϑa, ϑc 0.55 0
Two-level HGF ϑa, ϑc 0.00062 0
Response models:
β16 0 4
βch 48 1
β0 6.21 4
βwager 1.50 100
1. Arbitrated ζ 0 25
2. Advice Only ζ Inf 0
3. Card Only ζ 0 0

Note: The prior variances are given in the numeric space in which parameters are estimated. κ, ϑ, and μ3(k=0) are estimated in logit-space, while the other parameters are estimated in log-space. Although the prior variances for all parameters are set to be rather broad, we selected a shrinkage prior mean and variance for the decision noise parameter βch such that behavior is explained more by variations in the remaining parameters rather than decision noise.