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Norma Graham; Summation of Sine-waves at Detection Threshold: One Way of Investigating Spatial-Frequency Channels. Journal of Vision 2016;16(4):24. doi: 10.1167/16.4.17.
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© 2017 Association for Research in Vision and Ophthalmology.
Sine-wave gratings were once a novel stimulus in the study of vision and multiple spatial-frequency channels not yet proposed. Being involved in some of the research that made both popular was exciting and frustrating. In this talk, I'll attempt to recapture both the highs and the lows of measuring psychophysical summation using sine-wave gratings of different spatial frequencies and phases.
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