Bandwidths of orientation channels in human vision.
The ability of observers to discriminate between stimuli differing in orientation was measured using low contrast, foveally viewed stimuli. Detection and discrimination performance were measured simultaneously. A model is presented which permits bandwidths of orientation-tuned mechanisms to be estimated from the data. In a group of five observers, half-amplitude bandwidths varied from 10 degrees to 20 degrees.
D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008960:Models, Psychological; D011287:Prejudice; D011601:Psychophysics; D012684:Sensory Thresholds; D014796:Visual Perception