Table 1 Parameter estimates from the 2-step forward thinking model

From: Aberrant neural computation of social controllability in nicotine-dependent humans

 

Inverse temperature

Sensitivity to norm violation

Initial norm

Adaptation rate

Estimated influence

 

β

α

μ

ε

δ

fMRI Sample

 Non-smokers

8.814 (8.464)

0.687 (0.313)

8.342 (7.555)

0.171 (0.160)

1.396 (0.654)

 Smokers

9.172 (7.662)

0.699 (0.411)

10.517(7.478)

0.284 (0.338)

0.352 (1.544)

 t-value

0.14

0.105

0.92

1.454

−3.018

 p value

0.445

0.458

0.182

0.077

0.002**

Online Sample

 Non-smokers

9.032 (8.498)

0.754 (0.238)

8.418 (6.994)

0.336 (0.295)

1.351 (0.833)

 Smokers

9.206 (8.737)

0.743 (0.311)

9.871 (7.883)

0.306 (0.315)

1.119 (1.016)

 t-value

−0.140

0.269

−1.328

0.679

1.677

 p value

0.438

0.388

0.093

0.253

0.045*

  1. Mean (SD) of parameters estimated in the model include inverse temperature, sensitivity to norm violation, initial norm, adaptation rate and estimated influence (parameter of interest). Statistics for the fMRI sample (non-smokers n = 17; smokers n = 25) are obtained through a two-sample t-test, while the online sample (non-smokers n = 147; smokers n = 72) utilizes a non-parametric bootstrapping test.
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