Sleep’s role in the reprocessing and restructuring of memory

摘要: Sleep disconnects us from our external environment and puts in a vulnerable state, yet it is surprisingly universal. This thesis looks at the cognitive functions of sleep; specifically, role sleep reprocessing restructuring memory. It now well-known that sleep actively consolidates memories, even restructures them. likely achieved through reactivation of memory representations. Previous research has shown such reactivations can be triggered with method called targeted (TMR). In Chapter 2, I used TMR during rapid eye movement (REM) slow-wave (SWS) to investigate effect cueing these stages on electrophysiology subsequent task behaviour in two-handed serial reaction time task. SWS led detectable reactivation, and significant behavioural improvements non-dominant but not dominant hand. during REM did affect behaviour, although electrophysiological results indicated cues were processed this stage. 3 examined effects an associative memory We find any TMR. On other hand, improved remote associations between items which learned together whose relationship could be inferred, indicating for restructuring. was supported by difference event-related potentials response memory-related control cues. However, two replications group showed reliable. 4, finally, looked wakefulness two creative tasks. The more word-based indeed benefitted interval containing sleep, conceptual improvements relating day.