Eyelink 1000 calibration

Calibration Eyelink 1000

Matlab

Required hardware

• Eyelink 1000 PC + camera
• Extra computer with ethernet port (here referred to as PC2)

Connections

• PC2 with ethernet cable to Eyelink PC (Note: use correct RJ45 input port)
• Camera to Eyelink PC (big black cable)
• Power supplies for computer and camera
• Eyes left and right cables for camera should normally be and stay connected
• Settings for ethernet connections: configure IP4 manually: ip-address: 100.1.1.2 and subnet mask: 255.255.255.0

Software

• Required Eyelink framework library files: ask TSG to install these files.
• Matlab and Psychtoolbox
• BrainStream toolbox (also for for streaming Eyelink data to FieldTrip buffer, git@gitlab.socsci.ru.nl:cai-bci/brainstream.git)
• Calibration function, available via BrainStream toolbox, $brainstream/resources/devices/eyelink/calibrate_eyelink.m

the calibration function includes an option to send an image to Eyelink PC monitor remotely via Eyelink connection and initialises stimulation screen fullscreen, which guarantees correct screen resolution parameters.
Note: start_eyelink_buffer script only after finishing the calibration procedure otherwise you run into a connection error

Instructions

• start Matlab
• change directory to $brainstream/resources/devices/eyelink ($brainstream refers to BrainStream toolbox folder)
• add Psychtoolbox to Matlab path (you need to know the folder where Psychtoolbox is installed)
• start:

  calibrate_eyelink(<optionally provide name of image to be shown as input argument>)

• Calibration procedure starts/continues after pressing the ‘c’ key or the ‘calibrate' button on the Eyelink PC