A-125 Sex Moderates the Positive Effects of Sleep Schedule Consistency on Cognitive Function

Abstract Objective: Negative effects of reduced sleep duration and consistency on cognition are well-known. It is also well-known that both decline with age. While emerging research finds sex interacts duration, less known about whether schedule to predict cognitive performance. We hypothesized would negatively impact performance women be affected by inconsistent based suggested protective brain organization in sleep-deprived (Corsi-Carbrera et al., 2003). Methods: Participants (N = 77, 96.3% White) were selected from a parent study community-dwelling older adults. Inclusion criteria: complete demographic data, Repeatable Battery for the Assessment Neuropsychological Status (RBANS) index scores, self-reported data. The sample was majority female well-educated. Results: RBANS measures within normal limits (see Table). There significant main effect across all controlling age, education, duration. Immediate Memory, Attention, Total score. Interactions between Delayed Conclusions: Sleep associated better domains. Women perform than men globally domains immediate memory attention, regardless consistency. who consistently most likely exhibit global function. Findings extend function variability suggest may benefit more men.