Eye-tracking - Start/stop recording on a trial basis or record the whole experiment?
I'm both new to eye-tracking and to OpenSesame/PyGaze;
I've been looking into these tools for a few weeks now and at this point I have quite a few questions.
I'll start a few new discussions with some of these questions;
My apologies in advance if some of the questions are not very pertinent or if they are already answered elsewhere.
Any help will be much appreciated! Thanks!
Regarding the current topic,
The eye-tracking template in OpenSesame starts and stops the recording of eye-tracking data once per trial; this is consistent with the PyGaze example scripts I found.
Other tools, such as Tobii Studio (I'm using a Tobii eye-tracker) seem to record the experiment continuously from start to finish.
Is it somehow ill-advised to use
pygaze_stop_recordingoutside the scope of a trial, to effectively record the whole experiment continuously?
How would that relate to the need use
The obvious downside of recording the whole experiment is generating more useless data; on the other hand, looking at the eye-tracking data, it seems that each time the eye-tracker starts recording there is a period of about 500 ms in which the tracking is not successful.
My congratulations and gratitude to Sebastiaan Mathôt and all the contributors to OpenSesame! It seems to be an amazing tool!