Related Experiment Video
Updated: May 12, 2026
04:33
Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
Published on: April 26, 2024
Poor sleep quality impairs cognitive performance in older adults
Seiko Miyata1, Akiko Noda, Kunihiro Iwamoto
1Department of Biomedical Sciences, Chubu University, Kasugai, Japan.
Journal of Sleep Research
|April 9, 2013
Summary
Short sleep duration and poor sleep quality in older adults are linked to lower cognitive performance, particularly on memory tasks. Improving sleep may enhance cognitive function in this age group.
Area of Science:
- Gerontology
- Sleep Medicine
- Cognitive Neuroscience
Background:
- Insomnia prevalence rises with age, and short sleep duration is linked to cognitive deficits.
- Older adults are particularly vulnerable to sleep disturbances and their cognitive consequences.
Purpose of the Study:
- To investigate the influence of sleep duration and sleep quality on cognitive performance in adults aged 60 and over.
- To determine if sleep apnea severity affects cognitive function in this population.
Main Methods:
- 78 adults (≥60 years) underwent actigraphy for sleep assessment (total sleep time, sleep efficiency).
- Cognitive performance was evaluated using the continuous performance test-identical pairs and number-back tests.
- Sleep apnea was assessed using a portable home monitoring system.
Main Results:
- Reduced accuracy on the 0-back test was observed with total sleep time <5 hours compared to >7 hours.
- Lower sleep efficiency (<85%) significantly decreased accuracy on 0- and 1-back tests.
- No significant cognitive differences were found based on sleep apnea severity (apnea-hypopnea index) or oxygen saturation levels.
Conclusions:
- Total sleep time and sleep efficiency are independently correlated with cognitive performance on specific memory tasks (0-back and 1-back tests) in older adults.
- Sleep duration and quality, rather than sleep apnea, appear to be key factors influencing cognition in this demographic.
More Related Videos
06:23A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
Published on: September 22, 2020
12:18A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
Related Concept Videos
01:13Insufficient Sleep and Sleep Deprivation
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
01:30Cognitive Development During Adulthood
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
01:11Understanding 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...
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...
01:27Insomnia
Insomnia is a prevalent sleep disorder characterized by difficulty falling asleep, frequent awakenings during the night, and waking up too early without being able to return to sleep. People with insomnia often experience these disruptions at least three nights a week for at least one month. Chronic insomnia, which lasts for at least three months, can lead to increased anxiety, which in turn can worsen sleep difficulties, creating a cycle of sleeplessness and stress.
Multiple factors contribute...
Multiple factors contribute...
01:24Sleep-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:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
01:21Sleep 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...
The condition is more prevalent among...