I'm working on the attentional selection and I wish to create a visual search task with two salient distractors, but different in saliency intensity (dark red vs. light red) surrounded with green stimuli. However, I need an equiluminant display (I'm working with EEG). How can I deal with this problem?
Is there any technique in order to change the saliency without changing the luminance intensity?
John D. Bullough
Although your question is several years old, I would be curious to see how you dealt with this problem. I can only imagine using saturation as a variable since a dark red and a light red would not really be equal in luminance, but you could mix pure red with gray of the same luminance to de-saturate the red and obtain (perhaps) a lower salience.
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