Presentations

Daytime sleep behavior and cognitive performance in middle-older aged HIV+ and HIV- adults: A cross-sectional study of 502,505 participants in UK Biobank, at the International Workshop on HIV & Aging 2020, online, Wednesday, September 30, 2020

This is the first study in people living with HIV infection in the UK Biobank cohort. I presented our recent data that showed an exacerbated effect of HIV infection on the association between daytime sleep behavior and cognitive performance.

Video is publicly available here.

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Longer and More Frequent Naps Predict Incident Alzheimer's Dementia in Community-Based Older Adults, at SLEEP 2020, online, Wednesday, August 26, 2020

I have the honor to present oral in this year's SLEEP meeting again! The topic is about my most recent research interest -- daytime napping. Many results have been touched in the online AAIC oral presentation this year. In this SLEEP presentation, I've added some most recent updates on the...

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Daytime Napping Trajectory Over Time and Its Association with Cognitive Aging, at the Alzheimer's Association International Conference 2020, online, Tuesday, July 28, 2020

This is my second presentation at the virtual AAIC 2020 conference. Most of the contents have been covered in my oral presentation (Longer and More Frequent Naps Predict Incident Alzheimer's Dementia). In this poster, some details are given.

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Daytime napping in community-dwelling elderly adults, at the 11th Annual Rush Alzheimer's Disease Center ROSMAP Investigator's Meeting, online, Wednesday, May 6, 2020

Daytime napping is a common sleep behavior; its effect on health especially in elderly adults worth further investigation. I gave an presentation covering our preliminar results on the change of daytime napping duration with aging, and how it is related to adverse aging related consequences.

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Physiological complexity, brain health, and well-being, at Scientific Staff Meeting, Division of Sleep and Circadian Disorders, Boston, MA, Monday, March 30, 2020

I am presenting at the Scientific Staff meeting @ Division of Sleep and Circadian Disorders.

A fractal processThis is an interesting theoretical part of my presentation -- a fractal temporal process. Intuitively, we could examine a fractal process similarly as we do for a fractal object. We can zoom in part the process again and again, and if the...

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Increased randomness in motor activity predicts cognitive impairment in older adults, at Society for Neuroscience Conference, Chicago, Monday, October 21, 2019

I presented a poster at the Society for Neuroscience Conference 2019 in Chicago. This poster is about the relationship between randomness of motor activity fluctuations (or multiscale temporal correlation) and brain pathology. We found that increased randomness was associated with increased burden of certain pathological biomarkers in the brain. More interestingly, increased randomness uniquely explained 10% variance of cognition in addition to multiple brain pathologies.

See also our most recent publication in Sci Transl Med (cover feature): ...

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Interaction Between the Progression of Alzheimer’s Dementia and Circadian Disturbances: A 13-Year Longitudinal Study in Community-Based Older Adults, at SLEEP 2019, San Antonio, Wednesday, June 12, 2019

An oral presentation discussing the interaction between Alzheimer's progression and circadian disturbances. The medical media Medscape News covered this presentation with title "Circadian Rhythm Disturbances May Be an Alzheimer's Marker". See more about the news piece.

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Degraded Circadian Regulation Predicts Incident Physical Disability and All-Cause Mortality in Community-Based Older Adults, at SLEEP 2019, San Antonio, Monday, June 10, 2019

This is an oral presentation. The results indicate that disturbances in circadian rhythms appears to be a predictor of physical disability and mortality in older adults. This presentation has been covered by the medical media DocGuide. See the news here.

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Fractal motor regulation and adverse health consequences, at the 10th Annual Rush Alzheimer's Disease Center ROSMAP Investigator's Meeting, Chicago, Monday, April 15, 2019
I was invited to give a 15-min oral presentation on our research about fractal motor regulation. I presented new results we obtained resently about the association between fractal motor regulation and future incidence of adverse health outcomes. A manuscript related to these results is currently under review.

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