SR Research
Fast, Accurate, Reliable Eye Tracking

The EyeLink® 1000 Plus Core System

The 1000 Plus Core system consists of a High-Speed Camera specially constructed for eye tracking and a Host PC that is dedicated to processing the camera data. The unparalleled technical specifications that our systems achieve stem from the Core's capabilities.

Of any video-based eye tracker in the world, the 1000 Plus is the only system with:

  • low spatial and temporal noise
  • high sampling rates (up to 2000 Hz monocular or 1000 Hz binocularly)
  • dual-use functionality as remote eye tracker or head-supported system
  • usable seamlessly in the lab or in MEG/MRI environments
  • low latency and low variability in sample availability for gaze-contingent paradigms
  • focal imaging technology for a wide camera field of view and easier setup

Depending on the mount used with the camera, and the camera upgrades purchased, the core system can be used as either a high-speed, high-precision, eye tracking system with the head stabilized OR as a remote eye tracker with the head free to move. No other eye tracker in the world has this level of versatility!

Technical Specifications...

Key Specifications
Sampling Rate

Head Supported Default: 1000 Hz Monocular / 500 Hz Binocular
With 2000Hz Upgrade: 2000 Hz Monocular / 1000 Hz Binocular
Remote/Head Free to Move: 500 Hz Binocular


Head Supported Default or 2000 Hz: 0.25º -0.5º average accuracy
Remote/Head Free to Move: <0.5º average accuracy


Head Supported Default: <0.01º RMS
With 2000 Hz Upgrade: <0.01º RMS
Remote/Head Free to Move
: <0.05º RMS

Real-time Data Access

Head Supported Default: 1.95 msec (SD = 0.41 msec) @ 1000 Hz
With 2000 Hz Upgrade: 1.68 msec (SD = 0.29 msec) @ 2000 Hz
Remote/Head Free to Move: 2.98 msec (SD = 0.57 msec)@ 500 Hz

Participant Setup

Very simple and easy. Typically only a couple of minutes.

Core System Components

Host PC

EyeLink Software Development Kit

  • Languages: C/C++, Python, COM, MATLAB via PsychToolbox
  • Operating systems: Windows XP / Vista/ 7, Mac OSX, Linux
  • Example Experiments written in C, COM, Presentation, E-Prime, MATLAB and LabView