We are planning to use the SMI glasses eye tracker. This eye tracker obtains gaze data and we will use it for pupillometry as a measure of cognitive load.
The only thing I'd like to accomplish is streaming the eyetracker data in real-time to a running psychophysics MATLAB script to sync the eyetracker data with a listening task.
Now, SMI's REDn system (the tabletop variant) comes with a MATLAB toolbox, but SMI's glasses don't. The glasses are a mobile application that allows the subject to wear the eye tracker as glasses. Hence, the subject can move around and doesn't have to fixate at a certain point.
Now I was wondering if there is anyone out here that has used SMI's eye tracking glasses with a MATLAB plugin? I'd prefer a low-budget solution, preferably a freeware MATLAB tool.
I am aware of Lab Streaming Layer (LSL), but I can't get that to work, because of a version issue. Basically, LSL is written for a previous software development kit (SDK) for the eyetracker driver software (iView) and the current SDK is incompatible. SMI doesn't support previous SDK versions and hence that's a dead end.
I am also aware of various commercial plugins, such as iMotions, but those are heavy, expensive toolkits for purposes far exceeding the simple streaming of data from the eyetracker to a running MATLAB script.