Figure 5

Uncertainty preference and ‘seen analysis’. Probability to choose in the first free-choice trials the option experienced 2 times (2seen) and 4 times (4seen) during the forced-choice task under different reward conditions. 2seen and 4seen decks were chosen at the same rate within and between reward conditions suggesting that choices labelled as directed exploration where indeed guided by an exploratory drive and not by participants’ preference toward uncertainty.