Matsumoto Celso Soiti, Shinoda Kei, Matsumoto Harue, Funada Hideaki, Sasaki Kakeru, Minoda Haruka, Iwata Takeshi, Mizota Atsushi
Department of Ophthalmology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-ku, Tokyo 173-8605, Japan ; Matsumoto Eye Clinic, 50-2 Takagaki, Awa-cho, Awa-shi, Tokushima 771-1705, Japan.
Department of Ophthalmology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-ku, Tokyo 173-8605, Japan.
Biomed Res Int. 2014;2014:606951. doi: 10.1155/2014/606951. Epub 2014 Aug 14.
To determine whether organic electroluminescence (OLED) screens can be used as visual stimulators to elicit pattern-reversal visual evoked potentials (p-VEPs).
Checkerboard patterns were generated on a conventional cathode-ray tube (S710, Compaq Computer Co., USA) screen and on an OLED (17 inches, 320 × 230 mm, PVM-1741, Sony, Tokyo, Japan) screen. The time course of the luminance changes of each monitor was measured with a photodiode. The p-VEPs elicited by these two screens were recorded from 15 eyes of 9 healthy volunteers (22.0 ± 0.8 years).
The OLED screen had a constant time delay from the onset of the trigger signal to the start of the luminescence change. The delay during the reversal phase from black to white for the pattern was 1.0 msec on the cathode-ray tube (CRT) screen and 0.5 msec on the OLED screen. No significant differences in the amplitudes of P100 and the implicit times of N75 and P100 were observed in the p-VEPs elicited by the CRT and the OLED screens.
The OLED screen can be used as a visual stimulator to elicit p-VEPs; however the time delay and the specific properties in the luminance change must be taken into account.
确定有机电致发光（OLED）屏幕是否可用作视觉刺激器以诱发图形翻转视觉诱发电位（p-VEP）。
在传统阴极射线管（S710，美国康柏电脑公司）屏幕和OLED（17英寸，320×230毫米，PVM-1741，日本东京索尼公司）屏幕上生成棋盘格图案。用光电二极管测量每个显示器亮度变化的时间进程。从9名健康志愿者（22.0±0.8岁）的15只眼睛记录这两种屏幕诱发的p-VEP。
OLED屏幕从触发信号开始到发光变化开始有恒定的时间延迟。阴极射线管（CRT）屏幕上图案从黑到白的反转阶段延迟为1.0毫秒，OLED屏幕上为0.5毫秒。CRT屏幕和OLED屏幕诱发的p-VEP中，P100的振幅以及N75和P100的潜伏期均未观察到显著差异。
OLED屏幕可用作诱发p-VEP的视觉刺激器；然而，必须考虑时间延迟和亮度变化中的特定特性。
