<p>A. Time spent at spout is defined as the time duration between the beginning of the first lick to the end of the last lick on each trial. Black vertical lines represent median times spent at high reward spout. Red vertical lines represent median times spent at low reward spout. Distributions are normalised for total number of trials. Top panel: Data from all sessions. Middle panel: Data from the first acquisition session only. Bottom Panel: Data from the first reversal session only. B. Box plot of data from all sessions, plotted per rat. The whiskers indicate the extent of the data (the minimum and maximum after excluding outliers), box and middle line indicate lower and upper quartiles and median, respectively. C. Quantile-quantile plots (Q-Q plots) per individual rat. Corresponding quantiles for high and low rewards spouts are calculated at 5% steps and plotted against one another. All points lie above the diagonal line, indicating that rats wait longer at the high than the low reward spout. However, there is no systematic deviation from linearity, suggesting no other systematic difference between the distribution of waiting times.</p
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