Abstract
Previous studies have shown that 180° relative phase shifts inf + 2f gratings are discriminated when the cosine or the sine component of the shift exceeds some-criterion (Bennett & Banks, 1987; Field & Nachmias, 1984). The current experiments demonstrate that this result holds-for other two-component gratings, provided that the components are within two to three octaves of each other. For frequency differences greater than two to three octaves, phase-reversal discrimination is impossible. A simple model that discriminates phase shifts on the basis of changes in the responses of even- and odd-symmetric spatial filters can account for the results.
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This research was supported by National Science and Engineering Research Council of Canada Grant OG0042 133.
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Bennett, P.J. The harmonic bandwidth of phase-reversal discrimination. Perception & Psychophysics 53, 292–304 (1993). https://doi.org/10.3758/BF03205184
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DOI: https://doi.org/10.3758/BF03205184