This picture shows the interval analysis export window. The stimulus and freeze graphs for the selected trial are redrawn from the main window. The interval graph shows the percent freezing for fixed intervals, in this case 1 minute long. The export button writes the values for the selected analysis for each interval and for each animal directly to an open Excel spreadsheet. Analyses include % freezing, number of bouts of freezing (of specified minimum length), mean bout duration and mean interbout interval. Custom intervals of variable length can also be specified.