PennController for IBEX › Forums › Support › Eyetracking output file timestamps › Reply To: Eyetracking output file timestamps
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Hi,
You are not supposed to call start
on an EyeTracker element that’s already started. When .log
is called on the EyeTracker element, lines are added to the results file, including one line that tells you when .start
was executed and reporting the corresponding timestamp. Then you can use the times
column from the .csv output file to calculate when each gaze estimate was recorded (EventTime
+ times
). For example, the value of 0 in your sample simply corresponds to the tracker’s start
timestamp (not sure which of the two start
s though, but you can determine that using the timestamps of print
on the Left and Right Canvas elements, since you print those between the tracker’s first and second start
s). Comparing those values with the timestamps reported in your results file for other events, such as audio start/stop, will give you an idea of where the participant was looking during the unfolding of the event in the trial
Jeremy