Related Experiment Video
Updated: May 20, 2026
08:58
Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
Published on: June 19, 2019
Control of sleep and wakefulness
Ritchie E Brown1, Radhika Basheer, James T McKenna
1Laboratory of Neuroscience, VA Boston Healthcare System and Harvard Medical School, Brockton, Massachusetts 02301, USA.
Physiological Reviews
|July 20, 2012
Summary
This review explores brain mechanisms for sleep and wakefulness. Disruptions impact breathing, emotion, and cognitive functions, highlighting sleep's critical role in brain health.
Area of Science:
- Neuroscience
- Sleep Science
Background:
- Wakefulness is promoted by brain stem, hypothalamus, and basal forebrain systems.
- Sleep involves inhibition of wakefulness systems by factors like adenosine and nitric oxide.
Purpose of the Study:
- To review the brain mechanisms controlling sleep and wakefulness.
- To understand the functions of NREM and REM sleep.
- To explore consequences of sleep disruption.
Main Methods:
- Review of existing literature on sleep-wake regulation.
- Analysis of neurotransmitter systems and neuronal pathways.
- Integration of findings from genetic and functional studies.
Main Results:
- Wakefulness involves fast EEG activity driven by multiple neurotransmitter systems.
- Sleep (NREM and REM) involves inhibition of wake systems and specific neuronal interactions.
- NREM sleep aids energy conservation and memory consolidation; REM sleep is linked to emotion regulation.
Conclusions:
- Brain mechanisms for sleep and wakefulness are evolutionarily conserved and vital for function.
- Sleep disruption impairs physiological and cognitive functions.
- Understanding these mechanisms is crucial for addressing sleep disorders.
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