Determination of the chromatic contrast responses using wavelet analysis of visual evoked potentials

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Citations (Scopus)

    Abstract

    In order to test the human color vision objectively, we have developed the technique using the sweep parameter VEP technique (Norcia and Tyler, 1985) with an iso-luminant chromatic grating is effective to detect the defective color vision (Momose and Saito, EMBC2002). In this study, the wavelet transform using complex Morlet wavelet was examined to detect the dynamical spectrum of VEP in color vision defectives. Vertical sinusoidal iso-luminant chromatic gratings (6 Hz, 2 c/deg) presented on a color monitor were used as stimuli. The two colors for the gratings were selected from the colors on the dichromatic iso-chromatic lines. Steady-state VEPs were recorded during a continuous decrease of chromatic contrast at 10%/s. VEP components at 12 Hz and 16 Hz were evaluated as the response signal and background EEG (noise), respectively. For deuteranopic iso-chromatic colors, the signal to noise ratio (SNR) of deuteranope and deteranomalia were significantly lower than those of normals (P<0.01), indicating that this technique is effective for objectively detecting of the color vision defectives.

    Original languageEnglish
    Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
    Pages6993-6995
    Number of pages3
    Volume7 VOLS
    Publication statusPublished - 2005
    Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai
    Duration: 2005 Sep 12005 Sep 4

    Other

    Other2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
    CityShanghai
    Period05/9/105/9/4

    Fingerprint

    Color vision
    Wavelet analysis
    Bioelectric potentials
    Color
    Electroencephalography
    Wavelet transforms
    Signal to noise ratio

    ASJC Scopus subject areas

    • Bioengineering

    Cite this

    Momose, K. (2005). Determination of the chromatic contrast responses using wavelet analysis of visual evoked potentials. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 7 VOLS, pp. 6993-6995). [1616115]

    Determination of the chromatic contrast responses using wavelet analysis of visual evoked potentials. / Momose, Keiko.

    Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. p. 6993-6995 1616115.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Momose, K 2005, Determination of the chromatic contrast responses using wavelet analysis of visual evoked potentials. in Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 7 VOLS, 1616115, pp. 6993-6995, 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005, Shanghai, 05/9/1.
    Momose K. Determination of the chromatic contrast responses using wavelet analysis of visual evoked potentials. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS. 2005. p. 6993-6995. 1616115
    Momose, Keiko. / Determination of the chromatic contrast responses using wavelet analysis of visual evoked potentials. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. pp. 6993-6995
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