Hi,

I am interested in how subject performance are affected by the spatial frequency of the stimulus in a 2-alternative forced choice orientation discrimination task.

So far, I have found this old paper that is quite relevant in answering to this question (I have attached one of the main figures). Interestingly, increasing the spatial frequency of the stimulus with respect to an ""optimal"" one, rapidly decreases subjects performance, while they make a pretty good job in discriminating low spatial frequencies..

I would be very grateful if you could suggest me any other relevant paper concerning this issue.

Thanks

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