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Updated: Nov 4, 2025

Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
Published on: June 19, 2019
Sleep, Orexin and Cognition
Balmeet Toor1, Laura B Ray1,2, Alyssa Pozzobon1
1School of Psychology, University of Ottawa, Ottawa, Ontario, Canada.
Abstract:
Orexins regulate a wide variety of biological functions, most notably the sleep-wake cycle, reward and stress processing, alertness, vigilance, and cognitive functioning. Alterations of central and peripheral orexin levels are linked to conditions such as narcolepsy, anorexia nervosa, age-related cognitive decline, and neurodegenerative disease. Preliminary studies suggest that orexin mimetics can safely promote the wake signal via orexin agonism during the day and that orexin receptor antagonists can promote the sleep signal during the night. Thus, novel orexin therapies have the potential to either improve memory, cognition, and daytime performance directly or indirectly, through promotion of good sleep. The full scope of the therapeutic potential of orexin therapies remains to be elucidated.
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