Figure 1
From: Changes in group behaviour in response to a preferred environment reflect positive affect

Proportion of fish in the gravel compartment as a function of time (nā=ā7 groups). For clarity, data points show the mean over all seven groups for a given time point. The solid line denotes the asymptotic fit from the non-linear mixed-effects model, the grey lines show the bootstrapped 95% confidence intervals, and the dashed line indicates chance preference levels.