Stage of sleep important for the process of consolidating memories
For example, which phase, REM or non-REM, is more significant? Until recently, scientists suspected neurons (brain cells) in a region called the pons control REM sleep. Shigeyoshi Itohara of RIKEN Brain Science Institute, knew that pons cells arrived (during early embryonic development) from a distant brain area called the rhombic lip.
For the study, then, Hayashi and Itohara investigated what would happen if they marked the rhombic lip cells, tracked their migration to the pons, and then artificially reactivated them during sleep.
Sleep—how much you get, and how well you sleep—can have a powerful effect over memory.
When we talk about memory and its relationship to sleep, what do we mean?
In order to take full advantage of sleep’s positive effects on memory, it’s important to get a full night of rest on a regular basis.
When you’re under pressure—whether for a deadline at work, or an exam at school—keep in mind that you and your memory will be better served by getting a good night’s sleep, rather than pushing late into the night in hopes of cramming more information into an already-tired brain.
Experiences during our waking hours are consolidated and stored in our brains during non-REM sleep, with the slow waves of sleep contributing to that important memory process.
While much is known about sleep, too many questions remain unanswered.
The architecture of a typical night’s sleep includes a greater share of slow-wave sleep during the first part of the night, and a larger proportion of REM sleep in the latter part of the night. A deficit in the ability to form new human memories without sleep.
After this, the researchers explored the REM phase to see how it relates to sleep physiology in general.
Using the DREADD technique again, they shortened or elongated REM sleep duration.
Memory is actually a series of complicated cognitive processes.
We can look at memory broadly in three distinct phases: Acquisition: taking in new information Consolidation: storing information that’s been acquired Recall: retrieving memory from storage Sleep can play a role in helping—or hindering—each of these phases of memory.While both memory acquisition and memory recall are influenced by sleep, it is the middle phase of the memory process—consolidation—that actually occurs during sleep itself.