Publications by authors named "Simei Ou"
Study Objectives: Working memory is crucial in human daily life and is vulnerable to sleep loss. The current study investigated the impact of sleep deprivation on working memory from the information processing perspective, to explore whether sleep deprivation affects the working memory via impairing information manipulation.
Methods: Thirty-seven healthy adults attended two counterbalanced protocols: a normal sleep night and a total sleep deprivation (TSD).
Article Synopsis
- Researchers studied how our daily body clock (circadian rhythm) and tiredness (homeostatic pressure) affect our thinking skills at different times of the day.
- They tested 35 young adults by having them switch tasks in the morning and then napping or not in the afternoon.
- The results showed that being tired hurt their accuracy, but taking a nap helped, while the natural body clock in the afternoon also boosted their brain activity.
Article Synopsis
- - The study investigates how circadian rhythms and sleep homeostasis affect different components of working memory (WM) during N-back tasks in healthy adults, focusing on their effects on storage and executive functions.
- - Results show that taking a nap in the midafternoon enhances WM performance, leading to better executive function (measured by frontal-midline theta power) and fewer errors compared to no nap.
- - Circadian rhythms mainly influence the storage aspect of WM (reflected in changes in posterior alpha/beta power), while sleep homeostasis has a stronger effect on the executive aspect of WM (reflected in frontal-midline theta power).