0270 EEG Slow Wave Coherence is Related to PSG-Derived Measures of Sleep Fragmentation and Cognition in the WashU BASE Cohort Article Swipe
Noah Milman
,
Christina Reynolds
,
Nadir M. Balba
,
Yo‐El S. Ju
,
Miranda M. Lim
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1093/sleep/zsac079.268
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1093/sleep/zsac079.268
Introduction There exists a bidirectional relationship between sleep disruption and neuropathology in Alzheimer’s disease (AD). Electroencephalogram (EEG) during polysomnography (PSG) provides an opportunity to examine stereotyped, coordinated brain activity. Specifically, slow wave activity (SWA), a defining feature of non-REM sleep, is aberrant in AD, and disruption of SWA in healthy adults is related to increased amyloid-beta levels. Coherence of slow waves across different cortical regions may serve as a metric of brain network coordination, sensitive to earliest AD pathology. We explored slow wave coherence during sleep in relation to sleep macrostructure and cognitive performance in the Biomarkers of Alzheimer’s Disease in Sleep and EEG(BASE) cohort. Methods EEG was collected during an attended overnight PSG from the BASE cohort (n=79, average age = 70.8 ± 4.4 years), approximately 20% of whom had Clinical Dementia Rating (CDR) of 0.5-1. A custom slow wave peak detector was implemented in MATLAB to across 6 EEG leads (C3, C4, F3, F4, O1, and O2), and slow wavecoherence was calculated as the proportion of sleep with slow waves occurring within 100ms in all 6 leads. Results EEG slow wave coherence was reliably quantified during wake, non-REM stages N1, N2, N3, and REM. Slow wave coherence in N2/N3 was negatively correlated with measures of sleep fragmentation (wake after sleep onset Spearman r = -0.3, p 0.008; number of awakenings r = -0.39, p 0.0004), and positively correlated with sleep efficiency (r = 0.28, p = 0.013). Slow wave coherence in N2/N3 was correlated with overall cognition as measured by MoCA adjusted z-score (r = 0.2, p 0.087) and executive function as measured by Trailmaking B adjusted z-score (r = 0.25, p 0.038). Conclusion Slow wave coherence was strongly correlated with measures of sleep quality. Reduced slow wave coherence was associated with poorer cognitive executive function. EEG slow wave coherence is a novel, promising approach to measure coordinated brain network function that is sensitive to early cognitive dysfunction in AD. Support (If Any) NIH R01 AG059507, ARCS Foundation Scholar
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1093/sleep/zsac079.268
- https://academic.oup.com/sleep/article-pdf/45/Supplement_1/A122/43842273/zsac079.268.pdf
- OA Status
- bronze
- Related Works
- 10
- OpenAlex ID
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All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4281632658Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1093/sleep/zsac079.268Digital Object Identifier
- Title
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0270 EEG Slow Wave Coherence is Related to PSG-Derived Measures of Sleep Fragmentation and Cognition in the WashU BASE CohortWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-05-25Full publication date if available
- Authors
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Noah Milman, Christina Reynolds, Nadir M. Balba, Yo‐El S. Ju, Miranda M. LimList of authors in order
- Landing page
-
https://doi.org/10.1093/sleep/zsac079.268Publisher landing page
- PDF URL
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https://academic.oup.com/sleep/article-pdf/45/Supplement_1/A122/43842273/zsac079.268.pdfDirect link to full text PDF
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YesWhether a free full text is available
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bronzeOpen access status per OpenAlex
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https://academic.oup.com/sleep/article-pdf/45/Supplement_1/A122/43842273/zsac079.268.pdfDirect OA link when available
- Concepts
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Electroencephalography, Polysomnography, Slow-wave sleep, Audiology, Neuropathology, Psychology, Cohort, Sleep onset, Coherence (philosophical gambling strategy), Neuroscience, Neurology, Medicine, Internal medicine, Disease, Insomnia, Physics, Psychiatry, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
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0Total citation count in OpenAlex
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10Other works algorithmically related by OpenAlex
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| primary_location.is_published | True |
| primary_location.raw_source_name | Sleep |
| primary_location.landing_page_url | https://doi.org/10.1093/sleep/zsac079.268 |
| publication_date | 2022-05-25 |
| publication_year | 2022 |
| referenced_works_count | 0 |
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