True pattern-reversal LED stimulator and its comparison to LCD and CRT displays: visual evoked potential study
P. Voda,
J. Kremláček,
D. Kordek
et al.
Abstract:A rapid checkerboard pattern change is used to elicit pattern-reversal visual evoked potentials (PR VEPs). CRT or LCD monitors do not allow immediate reversal of the entire pattern. The study aimed to construct a new stimulator whose characteristics approximate an instantaneous reversal and verify whether the improvement is reflected in PR VEPs. A new stimulator using a matrix of 12 × 48 independent white square LEDs was designed and compared with LCDs and CRTs. The effect on the PR VEP peak times and amplitud… Show more
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