In this video, we will get to the bottom of the question of whether you can enlarge or reduce your pupils on command.

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Sources:
1. Eberhardt, L. V., Grön, G., Ulrich, M., Huckauf, A. & Strauch, C. Direct voluntary control of pupil constriction and dilation: Exploratory evidence from pupillometry, optometry, skin conductance, perception, and functional MRI. International Journal of Psychophysiology 168, 33–42 (2021).
2. published, Y. S. Man can change his pupil size on command, once thought an impossible feat. livescience.com [ Ссылка ] (2021).
3. Mathôt, S. Pupillometry: Psychology, Physiology, and Function. J Cogn 1, 16.
4. Loewenfeld, I. E. & Lowenstein, O. The Pupil: Anatomy, Physiology, and Clinical Applications. (Iowa State University Press ; Wayne State University Press, Ames, Detroit, 1993).

Video footage:
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DISCLAIMER:
This video uses footage from publicly available sources. I believe that any copyrighted material falls within the realm of fair use, but if the owners wish to dispute this, I will not hesitate to remove such content immediately. It is not my intention to infringe on content ownership rights in any way. If you find your material or images in the video, please let me know and I will be happy to credit you or remove the video.

The video is for entertainment purposes only without laying any claim to correctness or completeness. The information provided in this video has been carefully researched. However, despite all the care taken, errors in content cannot be ruled out with absolute certainty. If you notice such an error, please do not hesitate to contact me.

Please note that in a few cases the video footage does not reflect the exact situation described in the video, but merely serves as a visual illustration.

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