0241 N3 Slow Wave Duration Correlates with Next-Day Savoring Behavior in Pre-pubertal Children

Abstract Introduction Recent meta-analysis (Tomaso et al., 2020) indicates sleep loss to have more profound adverse effects on positive than negative emotion, and experimental studies in adults suggest disruption of slow wave (SWS) particular mediates these (Finan 2015; 2017). In pre-pubertal children, greater SWS has been shown protect against next day affect (Palmer & Alfano, 2017) as well the development depression years later (Silk 2007); however specific emotion-based mechanisms underlying rarely explored. Pre-pubertal especially represent a critical developmental window for probing relationships due dramatic decreases that occur during pubertal transition (Carskadon Dement, 2011). Methods We detected waves (0.5 – 4 Hz) N3 using an automated algorithm among N=18 children (7-11 years) night normal relation next-day savoring; emotion regulation strategy includes thoughts actions increase intensity, duration, appreciation experiences emotions. Healthy without any psychiatric disorders completed at-home PSG monitoring (10 hr opportunity). The morning at 11:00, returned clinic in-lab emotional assessment. Before assessment, were told/reminded they would be given piece chocolate enjoy end After consumed chocolate, asked several questions about how much ‘savored’ experience. All analyses controlled total time there no differences SWA based gender. Results indicated average duration SWs (F3/F4) correlated significantly with extent which enjoyed overall (r =.50, p <.05), felt did good job enjoying while eating it =.44-.49, <.05) looked forward assessment =.46-.50, <.05). Conclusion Although preliminary, novel findings intensity may modulatory effect subsequent responses experiences/events, could protective longer term affective health. Support (If Any)