<p>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.</p>

<p>I think you'll find everything you're looking for <a href="http://www.researchgate.net/profile/Niels_Taatgen/publication/224958750_Pupil_dilation_deconvolution_reveals_the_dynamics_of_attention_at_high_temporal_resolution/links/0fcfd506c99e4e468c000000.pdf" rel="nofollow">here</a>.</p>

CC BY-SA 3.0
2014-10-13T14:13:11.950Z
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
dabunar
CC BY-SA 3.0
2014-10-13T14:16:11.260Z
@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!
Louis Thibault
CC BY-SA 3.0
2014-10-13T13:45:26.750Z
2015-09-30T16:28:17.010Z
2015-09-30T16:28:17.010Z
Louis Thibault
<p>I would like to know if somebody could give me some references on the latency of the pupil response after a cognitive stimulus.</p>

<p>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?</p>

<cognitive-psychology><cognitive-neuroscience><vision><eye-movement>
Pupillometry: how long needs the pupil to respond towards an cognitive stimuli?
dabunar
# Pupillometry: how long needs the pupil to respond towards an cognitive stimuli?

(Asked by: username_0 on 2014-10-13)

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?

**Tags:** cognitive-psychology, cognitive-neuroscience, vision, eye-movement


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## 1 answers

### Answer by username_1 on 2014-10-13. Score: 1

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](http://www.researchgate.net/profile/Niels_Taatgen/publication/224958750_Pupil_dilation_deconvolution_reveals_the_dynamics_of_attention_at_high_temporal_resolution/links/0fcfd506c99e4e468c000000.pdf).

> **Comments:**
> **username_0**: 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  
> **username_1**: @username_0, 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!  

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