Several studies have demonstrated that irregularities in eye movements represent an important indicator to diagnose diseases affecting the central nervous system. In fact, abnormal horizontal and vertical eye movements play an important role in measuring the progress of neurodegenerative diseases. Electro-oculography (EOG) is a widespread technique that monitors the horizontal and vertical eye movements in response to a visual stimulation pattern. These visual stimuli require stimulus-response synchronization, low latency, and a real-time response. In this work, a novel system based on a Field-Programmable Gate Array (FPGA) is designed to address hundreds of LEDs for the generation of multiple visual stimulus signals and for EOG acquisition. Our evaluation demonstrates that the proposed system enhances the accuracy of the signals generated, showing excellent results in the stimulus-response synchronism and quality of the stimuli waveform.
Benitez, A, Socarras Hernandez, B, Herrera Rodriguez, J, da Silva, B & Vazquez Seisdedos, C 2022, 'Novel FPGA-Based Visual Stimulation Method for Eye Movement Analysis', Electronics, vol. 11, no. 3, 303, pp. 1-29. https://doi.org/10.3390/electronics11030303
Benitez, A., Socarras Hernandez, B., Herrera Rodriguez, J., da Silva, B., & Vazquez Seisdedos, C. (2022). Novel FPGA-Based Visual Stimulation Method for Eye Movement Analysis. Electronics, 11(3), 1-29. Article 303. https://doi.org/10.3390/electronics11030303
@article{836a57bbc9064da68df3dbea0a68bbc8,
title = "Novel FPGA-Based Visual Stimulation Method for Eye Movement Analysis",
abstract = "Several studies have demonstrated that irregularities in eye movements represent an important indicator to diagnose diseases affecting the central nervous system. In fact, abnormal horizontal and vertical eye movements play an important role in measuring the progress of neurodegenerative diseases. Electro-oculography (EOG) is a widespread technique that monitors the horizontal and vertical eye movements in response to a visual stimulation pattern. These visual stimuli require stimulus-response synchronization, low latency, and a real-time response. In this work, a novel system based on a Field-Programmable Gate Array (FPGA) is designed to address hundreds of LEDs for the generation of multiple visual stimulus signals and for EOG acquisition. Our evaluation demonstrates that the proposed system enhances the accuracy of the signals generated, showing excellent results in the stimulus-response synchronism and quality of the stimuli waveform.",
keywords = "electrooculography, visual stimulation, eye movement analysis, neurodegenerative diseases, FPGA",
author = "Alejandro Benitez and {Socarras Hernandez}, Barbaro and {Herrera Rodriguez}, Justo and {da Silva}, Bruno and {Vazquez Seisdedos}, Carlos",
year = "2022",
month = feb,
doi = "10.3390/electronics11030303",
language = "English",
volume = "11",
pages = "1--29",
journal = "Electronics",
issn = "2079-9292",
publisher = "MDPI AG",
number = "3",
}