Final research

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The Role of Sleep in Cognitive Functioning and Memory Consolidation

Darius Nix

Instructor: Kimberly Donaldson

Research Methods

01/31/2025

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Annotated Bibliography

Cheng, L. Y., Che, T., Tomic, G., Slutzky, M. W., & Paller, K. A. (2021). Memory

Reactivation during Sleep Improves Execution of a Challenging Motor Skill.

Journal of Neuroscience, 41(46), 9608-9616.

https://doi.org/10.1523/JNEUROSCI.0265-21.2021.

This paper reviews literature on memory reactivation during sleep and

procedural memory focus on motor skills. The research seeks to fill the

existing literature gap by investigating the role of sleep in the improvement

of the performance of new motor tasks. The procedure involved the subject

engaging in a myoelectric feedback task whereby the participants were

expected to contract arm muscles to move a cursor over desired locations.

The results suggest that performance enhancement through TMR during

sleep enhances motor performance in terms of speed, efficiency and muscle

activity. The authors suggest that getting sufficient amounts of sleep helps

consolidate motor execution skills, and this research may have implications

for neurorehabilitation and motor learning disciplines. This article will be

useful for my study as it shows the role that sleep plays in the formation of

procedural memory and cognition, especially in motor learning.

Kim, T., Kim, S., Kang, J., Kwon, M., & Lee, S. H. (2022). The Common Effects of

Sleep Deprivation on Human Long-Term Memory and Cognitive Control

Processes. Frontiers in Neuroscience, 16, 883848.

https://doi.org/10.3389/fnins.2022.883848.

This article focuses on how sleep can affect the long-term memory and

cognitive control processes that are affected by sleep and how both the short

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term and chronic lack of sleep impair cognitive function. The study objective

is to systematically review literature from Google Scholar and PubMed on

the effects of sleep deprivation on memory consolidation and cognitive

functioning in humans. This study shows that sleep loss negatively affects

memory – reduces memory performance, enhances false memories and

weakens resistance to post-learning interference. Additionally, it notes that

sleep deprivation leads to reduced efficiency of cognitive control especially

in areas of attention and inhibitory control. This article will be beneficial in

my research as I will be able to compare the detrimental effects of sleep loss

on declarative memory and cognition with the overall improvement in

memory that is observed during sleep.

Oyanedel Salmerón, C. N. (2022). Episodic-Like Memory Consolidation during

Slow-Wave Sleep (Doctoral dissertation, Universität Tübingen).

This doctoral dissertation examines the function of slow-wave sleep (SWS)

in the retrieval of episodic-like memories, particularly how SWS supports the

integration of biographical and spatial data. The aim of the current study is to

explore the link between SWS and the memory consolidation, with the aim

of filling a literature gap concerning the actual processes of episodic memory

consolidation. The research employs a sample of human participants, with a

particular emphasis on hippocampal activity during SWS, as well as its role

in the storage of detailed memories. The studies presented imply that the

function of deep sleep, particularly SWS, is essential for the preservation of

episodic memories and their replay and recognition in a personal context.

This article would be helpful for my research by giving an understanding of

how SWS is involved in the process of declarative memory consolidation,

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especially in the connection with the hippocampus and episodic memory

systems.

Taraborelli, D. (2022). The Promise of Sleep Tech: Strategic Alliance Opportunities

in Healthcare to Increase Access to a Sleep and Circadian Rhythm-Targeted

Platform Technology (Doctoral dissertation, Harvard University).

The study investigates sleep technology advancement while evaluating its

effects on public health through sleep deficit management and health and

performance deterioration. This research investigates how healthcare

strategic partnerships enable better access to sleep technology solutions that

address circadian rhythms and sleep disorders. The research question

examines how healthcare startups can team up with established organizations

to expand innovative sleep technology solutions. The existing research void

addresses non-clinical and scalable approaches to treat sleep deficiency

through platform technologies that focus on sleep and circadian rhythms. The

study conducted 20 semi-structured interviews with leaders and stakeholders

from public health and health insurance as well as pharmaceutical and

wellness organizations followed by qualitative thematic analysis to identify

emerging patterns. The study shows that strategic alliances provide startups

with the capability to utilize expert knowledge and resources for developing

sleep technology reach and impact. This article will help my research by

explaining how public health strategies and healthcare systems can integrate

sleep technology to combat insufficient sleep and its effects on cognitive

performance and overall health.

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Yang, Y. (2023). Current Perspective on Sleep and Emotion Regulation. Highlights

in Science, Engineering and Technology, 74, 1378-1384.

https://doi.org/10.54097/e9fyae12.

This article investigates the intricate sleep-emotional memory relationship

which examines how sleep influences emotional regulation while processing

emotional memories. This research investigates the relationship between

substandard sleep quality and sleep deprivation along with irregular REM

sleep patterns which lead to emotional control breakdown and mental

illnesses including depression and PTSD. The study reveals missing

knowledge about how sleep quality affects emotional memory consolidation

particularly through its effects on emotional reappraisal and cognitive

modification processes. Through a combination of research studies and

literature review the author demonstrates how mental disorders are affected

by REM sleep abnormalities while showing how disrupted sleep impacts

serotonin and dopamine regulation. Research has demonstrated that sleep

functions as a fundamental process for emotional memory processing but

disturbed sleep intensifies symptoms of emotional disorders. The article

serves my research by presenting knowledge about how REM sleep impacts

the consolidation of emotional memories and emotional regulation across

normal populations and clinical patient groups.