Link Data Control

link_sample_data

link_sample_data = <list>

Sets data in samples sent through link. See tracker file "DATA.INI" for types.

Arguments:

• <list>: list of data types
  • GAZE screen xy (gaze) position
  • GAZERES units-per-degree screen resolution
  • HREF head-referenced eye position data
  • PUPIL raw eye camera pupil coordinates
  • AREA pupil area
  • STATUS warning and error flags
  • BUTTON button state and change flags
  • INPUT input port data lines
  • HTARGET Head target data. Reports target distance and X/Y position for EyeLink Remote eye tracker.

link_event_data

link_event_data = <list>

Sets data in events sent through link. See tracker file "DATA.INI" for types.

Arguments:

• <list>: list of data types
  • GAZE screen xy (gaze) position
  • GAZERES units-per-degree angular resolution
  • HREF HREF gaze position
  • AREA pupil area or diameter
  • VELOCITY velocity of eye motion (avg, peak)
  • STATUS warning and error flags for event
  • FIXAVG include ONLY average data in ENDFIX events
  • NOSTART start events have no data, just time stamp

link_event_filter

link_event_filter = <list>

Sets which types of events will be sent through link. See tracker file "DATA.INI" for types.

Arguments:

• <list>: list of event types
  • LEFT, RIGHT events for one or both eyes
  • FIXATION fixation start and end events
  • FIXUPDATE fixation (pursuit) state updates
  • SACCADE saccade start and end
  • BLINK blink start an end
  • MESSAGE messages (user notes in file)
  • BUTTON button 1..8 press or release
  • INPUT changes in input port lines

recording_parse_type

recording_parse_type = <type>

Sets how velocity information for saccade detection is to be computed. Almost always left to GAZE.

Arguments:

• <type>: GAZE or HREF

link_nonrecord_events

link_nonrecord_events = <list>

Selects what types of events can be sent over the link while not recording (e.g between trials).

This command has no effect for EyeLink II 1000, 1000 Plus, or Portable Duo. Messages cannot be enabled for versions of EyeLink I before v2.1.

Arguments:

• <list>: event types separated by spaces or commas:
  • MESSAGE messages (user notes in file)
  • BUTTON button 1..8 press or release
  • INPUT changes in input port lines