Fig. 2: Behavioral measures.
From: Emotions and individual differences shape human foraging under threat
a, Example participant behavior throughout the epochs for the fast predator (more examples in Supplementary Fig. 3). b, Task features impacted behavioral measures: time until participants pressed a button to return from hiding (b(i)), proportion of time in each epoch spent foraging (b(ii)), proportion of active (non-hiding) time spent checking (b(iii)), whether the last action before hiding was a forage (coded as 1) or not (coded as 0) (b(iv)), measured in regression analyses. c, Ratings of stress (c(i)) and excitement (c(ii)) correlated across participants (c(iii); average Pearson’s r = 0.68, P < 0.001). Mood was impacted by task factors of the preceding block (regression analyses). Predator, fast, medium or slow speed of the predator; Check dirs, the number of possible directions to check; Rew (max)/Rew (min), maximum/minimum reward in the 90 s block (consisting of several epochs, with constant mean reward within each epoch); Caught, number of times caught by predator previously; Other emotion, stress when predicting excitement and vice versa. Significance tests: two-tailed (b) and one-tailed (d) one-sample t tests (other than for the impact of ‘other emotion’ in d, which was two-tailed as not pre-registered) of the regression weights of individual participants. ***P < 0.001. In d, for illustration, axes were constrained, cutting off some data points (<34 out of 699). Error bars show mean and standard errors. Individual participants are shown as dots. All data from replication sample (b: n = 702; d: n = 699 other than regressor ‘caught,’ for which n = 377).
