Related Experiment Video
Updated: Dec 18, 2025
08:20
Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
Published on: October 2, 2019
12.3K
Autonomic Activity during a Daytime Nap Facilitates Working Memory Improvement.
Pin-Chun Chen1, Lauren N Whitehurst2, Mohsen Naji3
1University of California, Irvine.
Journal of Cognitive Neuroscience
|June 13, 2020
Summary
Increased parasympathetic activity during sleep enhances working memory (WM) improvement in young adults. This suggests sleep
Area of Science:
- Neuroscience
- Autonomic Nervous System Research
- Sleep Science
Background:
- The parasympathetic nervous system influences executive functions, particularly working memory (WM).
- Parasympathetic activity is higher during sleep than wakefulness.
- Sleep may enhance WM performance.
Purpose of the Study:
- To investigate the role of cardiac parasympathetic activity during sleep in improving WM.
- To examine the relationship between parasympathetic activity during sleep and WM gains in young adults.
Main Methods:
- Participants completed the operation span task in the morning and evening.
- An intertest period involved either a nap or quiet wakefulness.
- Cardiac parasympathetic activity was measured using high-frequency heart rate variability (HF-HRV).
Main Results:
- Parasympathetic activity (HF-HRV) was significantly higher during naps compared to wakefulness.
- Parasympathetic activity during sleep, but not during wakefulness, positively correlated with WM improvement.
- Young adults demonstrated WM gains following a nap.
Conclusions:
- The natural increase in parasympathetic activity during sleep may facilitate improvements in prefrontal executive functions like WM.
- Sleep-mediated autonomic changes are crucial for cognitive enhancement.
- Further research is needed to understand the sleep-autonomic-prefrontal interactions for cognitive aging.
More Related Videos
07:01Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
Published on: September 20, 2020
5.1K
08:08Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory
Published on: June 18, 2014
27.4K
Related Concept Videos
01:24Working Memory
685
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
685
01:11Understanding Sleep
1.3K
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...
1.3K
01:07Narcolepsy
371
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.
371
01:19High-Level and Low-Level Awareness
558
Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
558
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
438
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
438
01:23Optimal Arousal Theory
591
The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
Inverted U-Shaped Performance Curve
The...
Inverted U-Shaped Performance Curve
The...
591