Presaccadic Attention Enhances and Reshapes the Contrast Sensitivity Function Differentially around the Visual Field.

The location–instruction interaction was marginally significant ( F (2,22) = 3.303; p = 0.057; η 2 = 0.231; BF 10 = 0.335), resulting from presaccadic enhancement (increased peak-SF during saccade preparation relative to fixation) surviving FDR correction only for the horizontal ( t = 3.082; p = 0.031; d = 0.728) and the upper vertical ( t = 3.082; p = 0.031; d = 0.728) meridian ( Fig. 6 b ).

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