Make video stop with a key press, record RT?

[jwayand]

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

[jarvis24]

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

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

[Trevor Newell]

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