Gratings Mask Bars and Bars Mask Gratings: Visual Frequency Response to Aperiodic Stimuli

Science  02 Jun 1972:
Vol. 176, Issue 4038, pp. 1047-1049
DOI: 10.1126/science.176.4038.1047


Gratings and bars produce unexpected mutual visual masking. A grating masks a bar much less than a bar masks a bar; and a bar masks a grating uniformly over the grating field. These effects suggest that neural populations selective for size and orientation may be involved in frequency analysis rather than in simple feature detection.