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Scatter plots of magnocellular response strengths in the surrounds versus the centers for L-cone (A), M-cone (B), and luminance responses (C) in units of spikes/(sec · C), where C is the cone contrast of the stimulus. All luminance responses had antagonistic centers and surrounds, as did the L-cone responses. Three of the on-center cells did not receive antagonistic input from the M-cones in the surrounds (B, first quadrant), whereas three did (B, fourth quadrant).
