1.5: Sleep Flashcards
Top Performers value Sleep
World class musicians value sleep highly for performance improvement. They were found to be napping more in the afternoon. Naps were shorter on weekends when times for leisure were more available.
Two Memory Systems
Studies show that we have 2 learning systems, fast and slow.
Fast systems picks up everything, essentially the short-term memory.
Slow system takes the information gathered from the fast system, and connects it with old knowledge, essentially the long-term memory.
The hippocampus contained the fast, and the cortex contained the slow. The day would be replayed when asleep, but at a much faster rate.
Memory and Two Stages of Sleep
The two stages of sleep are SWS and REM sleep. Information would come in from being awake, then processed in sleep. The day would be replayed to the SWS stage, known as Active Consolidation. The replay is then solidified in REM and inputed into the memory, known as Synaptis Consolidation. If this system gets mess up (sleep deprivation), then it messes up the memory.
Sleep Strengthens Memory in Two Ways
- It reduces inferences from other tasks.
- It consolidates memories, leading to sleep based improvements even without further practice.
Sleep Protects Information from Interference
A test was done with students learning from two different lists, A-B and A-C. The information was similar to that of training pairs (word-word). Two groups were formed, wake group and sleep group. When it was test day, the wake group does much worse than the sleep group. Sleep prevents information form interferring with each other.
Naps Work Well
Naps work. There are sources.
Sleep Deprived brain functions differently and works less effectively
Student showed pre-frontal cortex activating more when sleep depreived conpared to those who weren’t. Multiple other functions of the brain would perform either too much or too little. People with 35 hours of sleep deprivation performed significantly worse. Learning and sleep are related.
