Mean number of draws to decision. Error bars are 95% confidence intervals.

<p>Mean number of draws to decision. Error bars are 95% confidence intervals.</p

a,b. Draws to decisions of the individual participants in two experimental conditions during their 3 visits.

<p>a,b. Draws to decisions of the individual participants in two experimental conditions during their 3 visits.</p

a,b. Mean confidence estimates for the two sequences in which participants were asked to rate the confidence of their decision.

<p>The red line represents the methamphetamine condition; blue represents the placebo condition, and green represents the combined amisulpride and methamphetamine condition.</p

Mean number of draws to decision.

<p>Mean number of draws to decision.</p