Each data point represents a 0.5s time interval (xi) in which the quail could either been ambulating (xi=1) or immobile (xi=0), over a 6.5 day period .The total number of data points is approximately
Note that the task numbering here (1–12) is for convenience of reporting, and it does not express the task types as introduced in the experiment design section. To make the link, the ‘tracing method’