Pattern visual evoked potentials elicited by organic electroluminescence screen.
Pattern visual evoked potentials elicited by organic electroluminescence screen.
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DOI：
10.1155/2014/606951
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发表时间：
2014
影响因子：
--
通讯作者：
Mizota A
中科院分区：
文献类型：
--
作者：
Matsumoto CS;Shinoda K;Matsumoto H;Funada H;Sasaki K;Minoda H;Iwata T;Mizota A
目的.目的：探讨有机电致发光（OLED）屏能否作为视觉刺激物诱发图形反转视觉诱发电位（p-VEP）。法在常规阴极射线管（S710，Compaq Computer Co.，USA）屏幕和OLED（17英寸，320 × 230 mm，PVM-1741，Sony，Tokyo，Japan）屏幕上。用光电二极管测量每个监视器的亮度变化的时间过程。对9例（22.0 ± 0.8岁）健康志愿者的15只眼进行了p-VEP检测。结果OLED屏幕从触发信号的开始到发光变化的开始具有恒定的时间延迟。在从黑色到白色的反转阶段期间，对于图案的延迟在阴极射线管（CRT）屏幕上为1.0毫秒，在OLED屏幕上为0.5毫秒。CRT和OLED屏幕诱发的P-VEP中P100的波幅、N75和P100的内隐时间无显著差异。结论OLED屏幕可用作视觉刺激器以引起p-VEP;然而，必须考虑时间延迟和亮度变化的特定性质。
Purpose. To determine whether organic electroluminescence (OLED) screens can be used as visual stimulators to elicit pattern-reversal visual evoked potentials (p-VEPs). Method. 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). Results. 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. Conclusion. 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.
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