Tools for Functional Imaging > MRI-Compatible Eye Tracking > LiveTrack AV for fMRI
LiveTrack AV for fMRI is an affordable video eye tracking system which provides real-time estimates of eye rotation, direction of gaze coordinates and pupil size. A live video stream from the eye tracking camera is available concurrently with the data so you can visually monitor and check your observer’s behaviour throughout the experiment.
Infrared Optical Path
By using an infrared camera and illumination, the eye tracker is able to operate in darkness while still allowing the subject an unobstructed view of stimuli through a dichroic mirror.
Shielded Copper Cable
The camera uses carefully shielded and filtered circuitry to isolate the video signal from the MR gradients and RF pulses.
Bespoke Headcoil Clamp
The eye tracker includes a plastic clamp that is made specifically for your head coil.
Swivel Mount
The plastic ball-joints allow the camera to be easily positioned at the optimum location for each subject.
Dedicated Image Processing
A self contained image processing computer analyses the video signal and identifies the pupil and corneal reflections. The image data, tracked eye position and pupil size are returned to the host computer over the USB interface.
External Trigger Input
A separate TTL-compatible signal is recorded with the eye data for easy synchronisation.
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