Circannual seizure provocation as the day lengthens in the northern and southern hemispheres

Abstract Circannual status epilepticus (SE) patterns in communities near Earth's poles best test the hypothesis that SE susceptibility varies with light exposure because these communities are routinely subject to large changes in annual light exposure, which may result in changes to daily sleep...

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Bibliographic Details
Published in:Annals of Clinical and Translational Neurology
Main Authors: Marcus C. Ng, Tony Zhang, Darion Toutant, Milena K. Pavlova, Peter Bergin, Mark Quigg
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2023
Subjects:
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
Kivalliq
Online Access:https://doi.org/10.1002/acn3.51899
https://doaj.org/article/965f5d49a5d4492dba409673d7da1f7e
Description
Summary:Abstract Circannual status epilepticus (SE) patterns in communities near Earth's poles best test the hypothesis that SE susceptibility varies with light exposure because these communities are routinely subject to large changes in annual light exposure, which may result in changes to daily sleep time. We compared northern hemispheric circannual SE occurrence in Kivalliq, Canada (latitude‐62.8° N) to southern hemispheric Auckland, New Zealand (latitude‐36.9° S). Instead of peaking at a similar calendar time, SE peaked at a similar solar time during the increasing daylight phase after each region's respective winter solstice. This demonstrates that cumulative effects of increasing light exposure can mediate SE susceptibility.

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