Detection of grating patterns containing two spatial frequencies: A comparison of single-channel and multiple-channels models

摘要: Abstract Contrast thresholds were measured for gratings containing two superimposed sinusoidal components. The frequency of one component was always three times that the other, but phase between components and ratio their contrasts took on several values. Two models pattern vision tested (1) a single-channel model in which is function single neural network (2) multiple-channels stimulus information processed by many channels, each sensitive to narrow range spatial frequencies. Results support reject model.