User manual

EyeLink 1000 Host Application

F On-line Offset correction.

Plot Mode Only (Recording Screen).

X or Y Data trace to select or view

< or > Change plot speed

P Pause or unpause plotting (also marks)

INS Adds rewinding marker

DEL Rewind to marker or start

HOME Clear all data

U Undo last view or gain/offset change.

C Change to default view or gain/offset.

TAB Fit all data to view, auto gain/offset adjusting

CTRL

Selects offsets or scrolling when used with

mouse or ⇑ and ⇓ keys.

ALT

Selects gain or zooming when used with mouse

or ⇑ and ⇓ keys.

L or S

Load or Save Analog or raw Gain and Offset

2.3.8.5 Example Gain and Offset Adjustments

Imagine a simple saccade task which displays a target along the horizontal

meridian (left, center, right); you plan to send out -4 volt output when the

subject fixates on a target appearing on the left end of the display and +4 volts

when the subject fixates on the target on the right end.

1) Go to the Set Option screens. Set the “Record View” as “Plotting” and “Plot”

data type as “Analog”. If you don’t have an analog card installed on the

EyeLink Host PC, set the “Plot” data type to “RAW”.

2) Start the EyeLink recording. Present three targets at the left-end, right-end,

and center of the screen, each for 5 seconds and instruct the subject to

fixate on the targets as stably and precisely as possible. (If you do not have

a program ready, you may mark the target positions on a cardboard and

use the cardboard as the display screen.)

3) Click on the “Pause” button to pause display sweeping. Make sure that only

the “X Sel” button is selected.