Measurement of color discrimination threshold using visually evoked potential and its correlation with psychophysical measure

Author

Momose, K. ; Niwa, Y.

Author_Institution

Fac. of Information Technol., Kanagawa Inst. of Technol., Japan

Volume

1

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

168

Lastpage

171

Abstract

Purpose was to determine whether our developed electrophysiological technique (Momose and Saito, 2002) using visually evoked potential (VEP) is effective for determining the color discrimination threshold in human. Both VEP and psychophysical color matching measurement were applied to three normal volunteers, and their correlation and sensitivity were investigated. Colors on the MacAdam ellipse were selected for stimulus. Threshold determined by VEP was well correlated with psychophysical measure (r = 0.88 and 0.75 in two subjects), and was about 24 times higher than psychophysical ones. VEP measurement was done within much shorter time (30 min.) than psychophysical method (3 hours). VEP determined color discrimination threshold can be effective for the human color vision testing.

Keywords

colour vision; electroencephalography; eye; medical signal processing; visual evoked potentials; 3 hour; 30 min; MacAdam ellipse; color discrimination threshold; electrophysiology; human color vision testing; psychophysical color matching; visually evoked potential; Anthropometry; Color; Data compression; Diseases; Gratings; Humans; Psychology; Retina; Testing; Time measurement; MacAdam ellipses; VEP; color discrimination threshold; color vision; psychophysical measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-8439-3

Type

conf

DOI

10.1109/IEMBS.2004.1403118

Filename

1403118