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I would like to know if somebody could give me some references on the latency of the pupil response after a cognitive stimulus.

I know that the light reflex is quite fast compared to cognitive stimulation, but I could not find more information than this. Does anyone know how long it takes the pupil to react toward a cognitive task? Or a good reference where I could read it on my own?

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What are you trying to do? If you're trying to leverage pupil-dilation data from an eye-tracker, there are ways to deconvolute the timeseries if you can make a strong inference as to exactly when the stimulus of interest took place.

I think you'll find everything you're looking for here.

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  • $\begingroup$ Hey, thanks for your reply. :) I was just reading this article. They mentioned once that it takes some time for the pupil size to increase and that it achieves its peak at around 1 second. But do you maybe know any other studies showing the pupil dilation latencies? thanks $\endgroup$ – dabunar Oct 13 '14 at 14:13
  • $\begingroup$ @dabunar, Check the references in the paper I linked to. They pretty much hit every major paper on the subject! Also, please accept the answer if it gave you the information you're looking for! $\endgroup$ – blz Oct 13 '14 at 14:16

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