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Stimulator Selection in SSVEP-Based Spatial Selective Attention Study

Steady-State Visual Evoked Potentials (SSVEPs) are widely used in spatial selective attention. In this process the two kinds of visual simulators, Light Emitting Diode (LED) and Liquid Crystal Display (LCD), are commonly used to evoke SSVEP. In this paper, the differences of SSVEP caused by these tw...

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Autores principales: Xie, Songyun, Liu, Chang, Obermayer, Klaus, Zhu, Fangshi, Wang, Linan, Xie, Xinzhou, Wang, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5156793/
https://www.ncbi.nlm.nih.gov/pubmed/28044073
http://dx.doi.org/10.1155/2016/6410718
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author Xie, Songyun
Liu, Chang
Obermayer, Klaus
Zhu, Fangshi
Wang, Linan
Xie, Xinzhou
Wang, Wei
author_facet Xie, Songyun
Liu, Chang
Obermayer, Klaus
Zhu, Fangshi
Wang, Linan
Xie, Xinzhou
Wang, Wei
author_sort Xie, Songyun
collection PubMed
description Steady-State Visual Evoked Potentials (SSVEPs) are widely used in spatial selective attention. In this process the two kinds of visual simulators, Light Emitting Diode (LED) and Liquid Crystal Display (LCD), are commonly used to evoke SSVEP. In this paper, the differences of SSVEP caused by these two stimulators in the study of spatial selective attention were investigated. Results indicated that LED could stimulate strong SSVEP component on occipital lobe, and the frequency of evoked SSVEP had high precision and wide range as compared to LCD. Moreover a significant difference between noticed and unnoticed frequencies in spectrum was observed whereas in LCD mode this difference was limited and selectable frequencies were also limited. Our experimental finding suggested that average classification accuracies among all the test subjects in our experiments were 0.938 and 0.853 in LED and LCD mode, respectively. These results indicate that LED simulator is appropriate for evoking the SSVEP for the study of spatial selective attention.
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spelling pubmed-51567932017-01-02 Stimulator Selection in SSVEP-Based Spatial Selective Attention Study Xie, Songyun Liu, Chang Obermayer, Klaus Zhu, Fangshi Wang, Linan Xie, Xinzhou Wang, Wei Comput Intell Neurosci Research Article Steady-State Visual Evoked Potentials (SSVEPs) are widely used in spatial selective attention. In this process the two kinds of visual simulators, Light Emitting Diode (LED) and Liquid Crystal Display (LCD), are commonly used to evoke SSVEP. In this paper, the differences of SSVEP caused by these two stimulators in the study of spatial selective attention were investigated. Results indicated that LED could stimulate strong SSVEP component on occipital lobe, and the frequency of evoked SSVEP had high precision and wide range as compared to LCD. Moreover a significant difference between noticed and unnoticed frequencies in spectrum was observed whereas in LCD mode this difference was limited and selectable frequencies were also limited. Our experimental finding suggested that average classification accuracies among all the test subjects in our experiments were 0.938 and 0.853 in LED and LCD mode, respectively. These results indicate that LED simulator is appropriate for evoking the SSVEP for the study of spatial selective attention. Hindawi Publishing Corporation 2016 2016-12-01 /pmc/articles/PMC5156793/ /pubmed/28044073 http://dx.doi.org/10.1155/2016/6410718 Text en Copyright © 2016 Songyun Xie et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Xie, Songyun
Liu, Chang
Obermayer, Klaus
Zhu, Fangshi
Wang, Linan
Xie, Xinzhou
Wang, Wei
Stimulator Selection in SSVEP-Based Spatial Selective Attention Study
title Stimulator Selection in SSVEP-Based Spatial Selective Attention Study
title_full Stimulator Selection in SSVEP-Based Spatial Selective Attention Study
title_fullStr Stimulator Selection in SSVEP-Based Spatial Selective Attention Study
title_full_unstemmed Stimulator Selection in SSVEP-Based Spatial Selective Attention Study
title_short Stimulator Selection in SSVEP-Based Spatial Selective Attention Study
title_sort stimulator selection in ssvep-based spatial selective attention study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5156793/
https://www.ncbi.nlm.nih.gov/pubmed/28044073
http://dx.doi.org/10.1155/2016/6410718
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