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  • Title: Coloured pattern displacement and VEP amplitude.
    Author: Parry-Jones NO, Fenwick P.
    Journal: Electroencephalogr Clin Neurophysiol; 1979 Jan; 46(1):49-57. PubMed ID: 88330.
    Abstract:
    The results of this experiment confirm that evoked potential amplitude is linear with checkerboard pattern displacement. We have also found that this linear relationship holds for red, green and blue patterns. The hypothesis that there would be no significant differences between the amplitude of the evoked potential to colour/'black' stimulation and a white/'black' stimulus of equivalent luminance has been substituted. Differences were found between colours. The mean level for the blue pattern was lower than that for the red and the green patterns. We have further confirmed the relationship between luminance and the latency of the evoked potential. Differences in latency were found between all conditions in this study, suggesting that more accurate methods of measuring luminance are required in studies using colour pattern displacement if latency measurements are the main focus of the study.
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