SR Research EyeLink Portable Duo User Manual page 31

Calibration, Validation, Drift Check/Drift Correct, and Recording can be
initiated from this screen.
2.4.1.2 Setup Screen Main Functions
level.
for the head-stabilized tracking mode, we recommend using 13-point
calibration type for the Remote Mode to get the best recording accuracy.
Calibration Mode: If set to "Manual", the experimenter or participant needs to
press the spacebar or ENTER key on Host or Display PC when the participant is
looking at each calibration or validation target. If set to "Automatic", the
calibration and validation procedure automatically samples a target fixation
once the eye settles and moves on to the next target.
Select the tracker configuration (remote, head free-
to-move mode, or head-stabilized mode). Here the
head-stabilized mode is selected.
Select the eye(s) to track and sampling rate during
recording. Here both eyes are selected.
Keyboard Shortcuts: B = Track both eyes; R = Track
right eye; L = Track left eye; E = Cycle through eyes
to track.
Power level (100%, 75%) of the illuminators for the
head-stabilized mode. The Remote Mode always
uses 100% illumination level.
Keyboard Shortcut: I = Change illuminator power
This tab allows users to adjust two important
calibration-related settings, namely, the calibration
type and calibration mode.
Calibration Type: Select the Calibration Type for
calibration. Generally speaking, the more locations
sampled, the greater the accuracy that can be
expected. While the 9-point calibration type is good
EyeLink Portable Duo Host Software
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