Department of Physiology Faculty of Medicine & Health Sciences

This is the third tab and the third mode of the tracking system. This mode makes it possible to track the lighting behavior of a LED. This is sometimes necessary in my lab when I want to correlate displacements while recording simultaneously electrical activities. I use a stimulator that every second generates 100 msec long impulses (with a second impulse every 10 seconds). Another stimulator output is connected to the electrical recording system.

When all is set and ready, then the track panel is the place to go. Pressing “Go!” will start the tracking process. The tracking will start at the value shown in “Start Frame nr” and obviously stop at “Stop Frame nr”. The default values are the first and the last frame number of the selected video file but you may wish to change these if necessary.

Once tracking has started, the actual frame number is displayed in the “Go!” button, and in the Frame panel while the Message panel has changed to a progress bar.

If you want to interrupt the tracking, press “Command + .” (Apple).