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Developement of a Gaze-contingent mfERG Device
Multi-focal Electroretinogram (mfERG) devices serve as diagnostic tools in optometry, helping assess the function of various sub-areas within the retina. The technique involves stimulating the same retinal location with a specific series of dark and light visual stimuli throughout the experiment. However, given the inevitability of normal eye movements, the location of the stimulus on the retina can change, impacting the intended stimulation intensities at specific retinal locations. This limitation affects the accuracy and spatial resolution of existing commercial devices.
In our project, the aim was to develop a gaze-contingent mfERG system capable of compensating for these eye movements, potentially enhancing recording accuracy. Modifying existing commercial systems to incorporate this feature proved unfeasible. Consequently, we constructed our own prototype of the mfERG system in the lab, integrating it with an eye movement recording system.
As the lead researcher, I undertook various responsibilities, including programming stimulus generation and gaze-contingent stimulus presentation, developing the software-hardware interface, creating experiment pipelines, troubleshooting prototypes, and utilizing analytical and statistical tools for data analysis.
