Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Asymmetry of the pupillary light reflex during a cold pressor test

Drummond, P.D.ORCID: 0000-0002-3711-8737 (2022) Asymmetry of the pupillary light reflex during a cold pressor test. Autonomic Neuroscience, 241 . Art. 102989.

Link to Published Version:
*Subscription may be required


Pupillary light reflexes were monitored in 20 healthy participants while they immersed one foot in painfully cold water (the cold pressor test) or in warm water for 1 min. Pupillary dilatation was greater during the cold pressor test than during the warm-water immersion. In addition, during the cold pressor test, re-dilation after exposure to bright light proceeded more rapidly for the ipsilateral than contralateral pupil. These findings suggest that sympathetic pupillary drive is greater ipsilateral than contralateral to pain.

Item Type: Journal Article
Murdoch Affiliation(s): Psychology, Counselling, Exercise Science and Chiropractic
Centre for Healthy Ageing
Publisher: Elsevier
Copyright: © 2022 Elsevier B.V.
Item Control Page Item Control Page