Novel FPGA-Based Visual Stimulation Method for Eye Movement Analysis

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. E...

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Veröffentlicht in:Electronics (Basel) 2022-02, Vol.11 (3), p.303
Hauptverfasser: Benitez Fernandez, Alejandro, Socarrás Hernández, Bárbaro N., Herrera Rodríguez, Justo M., da Silva, Bruno, Vázquez-Seisdedos, Carlos R.
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container_issue 3
container_start_page 303
container_title Electronics (Basel)
container_volume 11
creator Benitez Fernandez, Alejandro
Socarrás Hernández, Bárbaro N.
Herrera Rodríguez, Justo M.
da Silva, Bruno
Vázquez-Seisdedos, Carlos R.
description 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.
doi_str_mv 10.3390/electronics11030303
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source MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Alzheimer's disease
Amyotrophic lateral sclerosis
Ataxia
Brain research
Central nervous system
Design
Embedded systems
Eye movements
Field programmable gate arrays
Flexibility
Parkinson's disease
Patients
Stimulation
Synchronism
Time response
Visual signals
Visual stimuli
Waveforms
title Novel FPGA-Based Visual Stimulation Method for Eye Movement Analysis
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