Large-scale relative localization across spatial frequency channels.
Large-scale relative localization accuracy is measured with objects that stimulate different ranges of spatial frequencies. The author has previously made measurements using objects that stimulate only high-spatial-frequency channels or only low-spatial-frequency channels and found no effect of spatial frequency. In the present study, relative localization accuracy, i.e. interval discrimination, is measured with an object pair consisting of a low-spatial-frequency object and a high-spatial-frequency object. Relative localization accuracy for this cross-channel stimulus is as high as for the same-channel stimuli used previously, showing that the relative localization mechanism operates effectively across spatial frequency channels.
Burbeck
C A
CA
Visual Sciences Program, SRI International, Menlo Park, CA 94025.
D006801:Humans; D011594:Psychometrics; D013028:Space Perception / Q000502:physiology*