Comparison of steady-state visual evoked potential produced by stimulations with different grey values(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2019年第3期
- Page:
- 340-343
- Research Field:
- 医学信号处理与医学仪器
- Publishing date:
Info
- Title:
- Comparison of steady-state visual evoked potential produced by stimulations with different grey values
- Author(s):
- LI Dongge1; 2
- 1. Key Laboratory of Cognitive Science, State Ethnic Affairs Commission, Wuhan 430074, China; 2. Key Laboratory of Medical Information Analysis and Tumor Diagnosis and Treatment, Wuhan 430074, China
- Keywords:
- ; Keywords: steady-state visual evoked potential; grey value; canonical correlation analysis
- PACS:
- TP391.4；R318
- DOI:
- DOI:10.3969/j.issn.1005-202X.2019.03.019
- Abstract:
- Abstract: The steady-state visual evoked potential (SSVEP) is a kind of physical response of the brain to external light stimulation. Based on the physical factors of light stimulation, the effects of grey values on the accuracy of SSVEP frequency recognition is studied. Herein Laplace fusion is used for spatial filtering and canonical correlation analysis is applied for frequency recognition. With the white background, the grey value of squares is changed to analyze the accuracy of frequency recognition. The results show that the accuracy of frequency recognition decreases with the increase of grey value, and the accuracy of frequency recognition reach the highest when the grey value is 0.
Last Update: 2019-03-26