Therapeutic Actions Napping

NCBI pubmed

Do Different Salience Cues Compete for Dominance in Memory over a Daytime Nap?

Related Articles Do Different Salience Cues Compete for Dominance in Memory over a Daytime Nap? Neurobiol Learn Mem. 2018 Jun 12;: Authors: Alger SE, Chen S, Payne JD Abstract Information that is the most salient and important for future use is preferentially preserved through active processing during sleep. Emotional salience is a biologically adaptive cue that influences episodic memory processing through interactions between amygdalar and hippocampal activity. However, other cues that influence the importance of information, such as the explicit direction to remember or forget, interact with the inherent salience of information to determine its fate in memory. It is unknown how sleep-based processes selectively consolidate this complex information. The current study examined the development of memory for emotional and neutral information that was either cued to-be-remembered (TBR) or to-be-forgotten (TBF) across a daytime period including either napping or wakefulness. Baseline memory revealed dominance of the TBR cue, regardless of emotional salience. As anticipated, napping was found to preserve memory overall significantly better than remaining awake. Furthermore, we observed a trending interaction indicating that napping specifically enhanced the discrimination between the most salient information (negative TBR items) over other information. We found that memory for negative items was positively associated with the percentage of SWS obtained during a nap. Furthermore, the magnitude of the difference in memory between negative TBR items and negative TBF items increased with greater sleep spindle activity. Taken together, our results suggest that although the cue to actively remember or intentionally forget initially wins out, active processes during sleep facilitate the competition between salience cues to promote the most salient information in memory. PMID: 29906574 [PubMed - as supplied by publisher]

"Is daytime napping associated with inflammation in adolescents?": Correction to Jakubowski et al. (2016).

Related Articles "Is daytime napping associated with inflammation in adolescents?": Correction to Jakubowski et al. (2016). Health Psychol. 2018 Jul;37(7):699 Authors: Abstract Reports an error in "Is daytime napping associated with inflammation in adolescents" by Karen P. Jakubowski, Martica H. Hall, Anna L. Marsland and Karen A. Matthews (Health Psychology, 2016[Dec], Vol 35[12], 1298-1306). This erratum reports an error in Table 1. The unit of measurement for IL-6 should be pg/mL instead of mg/L. This error did not impact the results or the interpretation of the findings. (The following abstract of the original article appeared in record 2016-27321-001.) Objective: Daytime napping has been associated with poor health outcomes in adults. It is not known whether daytime napping is similarly linked to adverse health in adolescents, although many report napping. The present study evaluated associations between daytime napping and 2 markers of increased inflammation, high-sensitivity C-reactive protein and interleukin-6 (IL-6), in healthy high school students. METHODS: Two hundred thirty-four Black and White high school students completed a week of actigraph and diary measures of sleep and napping and provided a fasting blood sample. Napping measures were the proportion of days napped and the average minutes napped across 1 week during the school year. RESULTS: Linear regressions adjusted for age, sex, race, average nocturnal sleep duration, time between sleep protocol and blood draw, and body mass index percentile demonstrated that proportion of days napped measured by actigraphy, B(SE) = .41(.19), p < .05, across the full week was positively associated with IL-6. Higher proportions of school days napped between 2 p.m. and 6 p.m., B(SE) = .40(.20), p < .05, and between 6 p.m. and 10 p.m., B(SE) = .57(.28), p < .05, were associated with increased IL-6. No associations emerged between average actigraphy-assessed nap duration and either study outcome. Diary-reported napping was unrelated to either study outcome. CONCLUSIONS: Actigraphy-assessed napping and IL-6 are associated but the direction of the relationship remains to be determined. Overall, napping is an important factor to consider to better understand the relationship between short sleep and cardiovascular health in adolescents. (PsycINFO Database Record PMID: 29902054 [PubMed - in process]