Scientific Reports 6: Article number: 18096; published online: 04 January 2016; updated: 25 February 2016.

The HTML version of this Article contains an error in the order of the Figures and their legends. Figures 3 and 4 were published as Figs 4 and 3 respectively.

The PDF version of this Article contains an error in the order of the Figure legends. Figure legends 3 and 4 were published as Figure legends 4 and 3 respectively. The Figures are correct.

The correct Figs 3 and 4 and their accompanying legends appear below as Figs 1 and 2 respectively.

Figure 1: Visualisation of the influence of testosterone on bluffing behavior relative to the equilibrium strategy.
figure 1

Testosterone specifically reduces bluffing with weak hands, i.e. ‘cold bluffing’. Polynomial fits are based on the proportion of high bets with increment-size 0.01 over the full range of poker hands (0–1).

Figure 2: Proportion of calls with logistic regression lines for placebo and testosterone representing their main effect in the multiple logistic regression model.
figure 2

Testosterone increases calling.