Inquisit Language Reference

saccadethreshold attribute

The saccadethreshold attribute specifies the saccade angular velocity threshold in degrees per second used in determining when a fixation is completed.

Member of

<eyetracker> <eyetracker> <eyetracker>

Syntax

Parameters

Remarks

If the eye moves faster than the threshold it indicates a potential saccade and the end of the current fixation. The default value is 30's.

Examples

The following sets the saccade velocity threshold to 35 degrees per second with a Tobii eye tracker:

<eyetracker>
/ plugin = "tobii"
/ saccadethreshold = 35
</eyetracker>

The following sets the saccade velocity threshold to 35 degrees per second with an EyeLink eye tracker:

<eyetracker>
/ plugin = "srresearch"
/ saccadethreshold = 35
</eyetracker>