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. 2020 Jan;24(1):226-234.
doi: 10.1109/JBHI.2019.2899774. Epub 2019 Feb 15.

Pattern-Reversal Visual Evoked Potential on Smart Glasses

Rossana Terracciano, Alessandro Sanginario, Simona Barbero, Davide Putignano, Lorenzo Canavese, Danilo Demarchi

Pattern-Reversal Visual Evoked Potential on Smart Glasses

Rossana Terracciano et al. IEEE J Biomed Health Inform. 2020 Jan.

Abstract

Objective: This paper presents an integrated device, based on smart glasses, for the pattern-reversal visual evoked potential (PR-VEP) clinical test.

Methods: Smart glasses are used to generate the checkerboard changing pattern, with its related red fixation point through an Android application. Electroencephalographic signals, for monitoring the stimulus generated by PR-VEP, were amplified close to the scalp and then transmitted wirelessly to a PC. A MATLAB real-time algorithm processed the incoming signals to extract the final PR-VEP signal.

Methods: In total, 40 eyes (from 20 subjects, 12 males and 8 females between 24 and 28 years old) were tested and results were compared, with a commercial device for VEP clinical exam, to test the reproducibility and the efficacy of the proposed solution.

Results: PR-VEPs generated by smart glasses showed typical triphasic waveforms: We observed promising results and components in moderate agreement with those obtained using commercial PR-VEP recorder, with potential for improvements after further refinement works.

Significance: The proposed device leads the way for a portable and low-cost solution.

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