Chromatic Specificity of the Visual Evoked Response

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Science  01 Sep 1972:
Vol. 177, Issue 4051, pp. 813-815
DOI: 10.1126/science.177.4051.813


The temporal alternation of red and green stripes in a structured field produces successive contrast, which can elicit cortical potentials recorded from the scalp. Amplitudes of the major frequency components of the potentials correspond to the relative intensities of red and green producing the contrast. The amplitude variations are color-specific, since total luminance and structure are held constant.