Make video stop with a key press, record RT?

Does anyone know how to get MediaLab to show a video, but have the video end when the participant presses a key?

We want our participants to search for an object in a video, then press a key when they spot the object. We'd like the video to end then, and of course have the RT recorded.

Thanks for your help!!

Joe

You could use a [I]scale response[/I] item or even a simple [I]instruction[/I] item and specify the video as a [I]backvideo[/I]. Those two item types will have MediaLab continue on as soon as a valid number key is hit ([I]scale response[/I] item) or the [I]spacebar[/I] is pressed ([I]instruction[/I] item).

For more detail, see backvideo in the user's guide or online here:
[URL]http://www.empirisoft.com/medialab/help/quebackvideo.htm[/URL]

See also:
[url]www.empirisoft.com/support/showthread.php?t=3442[/url]