Pattern visual evoked potentials elicited by organic electroluminescence screen.

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.

Binocular interaction of visually evoked cortical potentials elicited by dichoptic binocular stimulation.

To analyze the interaction of cortical potentials elicited by dichoptic stimulation of the dominant and fellow eyes at different frequencies, a pair of programmed power supply units were used to drive a light emitting diode (LED) mounted in the right and left eyes of light-proof goggles to elicit the visually evoked cortical responses (VECPs). The right eye was stimulated at 11.5 Hz and the left eye at 11.

Comparisons of pattern visually evoked potentials elicited by different response time liquid crystal display screens.

Purpose: To evaluate the usefulness of a liquid crystal display (LCD) with higher driving frequency and shorter response time (2 ms) as a visual stimulator to elicit pattern reversal visually evoked potentials (p-VEPs).

Method: p-VEPs were recorded from 12 eyes of 12 healthy volunteers (28.3 ± 9 years).

Liquid crystal display screens as stimulators for visually evoked potentials: flash effect due to delay in luminance changes.

Purpose: The cathode-ray tube (CRT) screen has recently been replaced by liquid crystal display (LCD) screens as visual stimulators for pattern-reversal visually evoked potentials (p-VEPs). The aim of the study was to evaluate the usefulness of LCD screen to elicit p-VEPs.

Methods: The waveforms of the p-VEPs elicited by a LCD panel were compared with those elicited by a conventional CRT screen.