[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/JOSK.2012.16.2.145

A Display-based Visual Stimulator for Psychophysical and Electrophysiological Color Sensitivity Measurements

Hwang, Jisoo (Division of Physical Metrology, Korea Research Institute of Standards and Science)
Park, Seung-Nam (Division of Physical Metrology, Korea Research Institute of Standards and Science)
Park, Cheol-Min (Division of Physical Metrology, Korea Research Institute of Standards and Science)
Lee, Geun Woo (Division of Physical Metrology, Korea Research Institute of Standards and Science)
Kim, Kiseong (Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology)

Publication Information

Journal of the Optical Society of Korea / v.16, no.2, 2012 , pp. 145-150 More about this Journal

Abstract

We present a display-based visual stimulator for psychophysical and electrophysiological visual sensitivity measurements. The stimulator offers various psychophysical visual stimuli and transfers the signals from external devices along with the stimulation signals to an electrophysiological recorder. As an experimental demonstration, we perform a visual sensitivity experiment in the mesopic vision range by using the display-based stimulator. The intensity of the steady-state visual evoked potential is observed to correlate with the luminance of the flickering visual stimulation. For the psychophysically determined detection thresholds, we determine the mesopic luminance, showing agreement with the perceived brightness within the uncertainty of the luminance measurement.

Keywords

Visual stimulator; Psychophysical and electrophysiological measurement; Visual color sensitivity;

Citations & Related Records

Times Cited By Web Of Science : 0 (Related Records In Web of Science)

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