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var targets = ['color_cars1.png','color_cars2.png'],
foils = ['color_cars3.png','color_cars4.png'],
all = [],
hits = 0, false_alarms = 0,
i, e;
// Here we should put preloading code, see below in this chapter
instruction("Study the following images");
for (i = 0; i < targets.length; i++)
{
setimage(targets[i]);
await(1000);
hideimage();
await(1000);
}
instruction("For each of the following images, <br />"
+ "press 's' for 'seen' or 'old'<br />"
+ "or 'l' for 'unseen' or 'new'");
all = all.concat(targets,foils); // Add all image names to array 'all'
shuffle(all); // Randomize image order
for (i = 0; i < all.length; i++)
{
setimage(all[i]);
e = awaitkey("s,l"); // 's' is 'old', 'l' is 'new'
if (contains(targets,all[i]) && e.key === 's')
{
++hits;
}
if (contains(foils,all[i]) && e.key === 's')
{
++false_alarms;
}
await(1000);
}
log(hits,"hits"); // Log data into your account
log(false_alarms,"false_alarms");
text("Thank you for participating!"); // 'debriefing'
await(3000);
You can download the files as follows: Click on the file (link) and then right-click and choose Save as... from the menu. Some media files (e.g., sound) will have a download button for this purpose.
color_cars1.png
color_cars2.png
color_cars3.png
color_cars4.png