Rosli, YantiPetratchkov, SuzanneMaddess, Ted2015-12-101552-5783http://hdl.handle.net/1885/61358Purpose: This study examined the number and nature of spatiotemporal channels in the region where the frequency-doubling (FD) illusion would be expected to occur at eight locations spanning the central 30° of the visual field. Methods: The probability ofKeywords: adult; article; controlled study; critical flicker fusion; female; forced choice method; human; human experiment; male; normal human; priority journal; spatial frequency discrimination; stimulus response; visual field; visual illusion; visual stimulation;200910.1167/iovs.08-18102016-02-24