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Related Concept Videos

Sleep Apnea01:21

Sleep Apnea

Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
Sleep-Wake Cycles01:24

Sleep-Wake Cycles

Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Understanding Sleep01:11

Understanding Sleep

Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
Narcolepsy01:07

Narcolepsy

Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
Management of Insomnia01:19

Management of Insomnia

The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...

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Related Experiment Video

Updated: May 19, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
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Neurocognitive function in obstructive sleep apnoea: a meta-review.

Romola S Bucks1, Michelle Olaithe, Peter Eastwood

  • 1School of Psychology Centre for Sleep Science, School of Anatomy, Physiology and Human Biology, The University of Western Australia, Perth, Western Australia, Australia. romola.bucks@uwa.edu.au

Respirology (Carlton, Vic.)
|August 24, 2012
PubMed
Summary

Adult obstructive sleep apnoea (OSA) impairs cognitive functions like attention and memory. Continuous positive airway pressure (CPAP) treatment may improve these deficits, but more research is needed.

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Area of Science:

  • Neurology
  • Sleep Medicine
  • Cognitive Science

Background:

  • Adult obstructive sleep apnoea (OSA) is linked to cognitive dysfunction.
  • Previous reviews on OSA and cognition lack systematicity, leading to varied conclusions.
  • Identifying specific cognitive domains affected by OSA and treatment outcomes requires rigorous analysis.

Purpose of the Study:

  • To systematically review and synthesize findings from systematic reviews and meta-analyses on OSA's cognitive effects.
  • To examine the relationship between OSA severity and cognitive impairment.
  • To evaluate the impact of OSA treatment on cognitive function.

Main Methods:

  • Conducted electronic database searches and hand-searching to identify relevant systematic reviews and meta-analyses.
  • Selected five reviews based on predetermined, stringent criteria.
  • Synthesized data on cognitive domains affected, OSA severity correlations, and treatment effects.

Main Results:

  • Most reviews indicate deficits in attention/vigilance, delayed long-term memory (visual and verbal), visuospatial abilities, and executive function in OSA patients.
  • Language and psychomotor function appear unaffected.
  • Working memory, short-term memory, and global cognitive function show equivocal results.
  • Attention deficits correlate with sleep fragmentation; global cognitive issues with hypoxemia.
  • Continuous positive airway pressure (CPAP) treatment shows potential to improve executive dysfunction, memory, attention, and global cognition.

Conclusions:

  • OSA significantly impacts specific cognitive domains, particularly attention and memory.
  • CPAP treatment demonstrates promise in ameliorating OSA-related cognitive impairments.
  • Future research should focus on participant characteristics, disease severity measures, and neuropsychological test selection for clearer understanding.