So I’ve been learning some new tricks for my blog and I’m excited to use them! In this post, you will get to enjoy two forms of REM (and possibly a third if you fall asleep as you read).
Now R.E.M. is the name of one of all-time favorite rock bands so naturally I chose an article which allows me to share one of my favorite clips out there on the net (as off-topic as it might seem):
I loved this performance of “Nightswimming” from Automatic for the People (1992) so much that I actually bought an “emotionally unavailable” t-shirt a few years ago. Thanks to my new ability to embed a YouTube video right into my blog post, you too have the privilege of enjoying this great tune!
Getting back on track, the article I found for this week’s blog post actually discusses REM sleep. REM stands for Rapid Eye Movement which occurs while we sleep and usually while we are dreaming (GIF below).

The article is entitled During REM sleep, memory is consolidated by weeding out unwanted neural connections. It summarizes a study conducted by researchers at the New York University School of Medicine, who investigated exactly how REM sleep helps transform temporary memories into permanent learning.
The research on mice concluded that neural structures inside the brain (called dendritic spines) are physically pruned and strengthened during sleep. This process is part of the brain’s active selection of which memories to retain and which to dispose of. By nature, dendritic spines aren’t permanent structures- they grow, shorten, or disappear over time as the importance of certain knowledge changes. Ever struggle with a task which used to be second nature to you back when you did it regularly? That’s your brain “forgetting” a skill which hasn’t been emphasized for a long time.
Another important conclusion from this study was that there was much more pruning of dendritic spines in younger mice. In the older mice, the same process still happened during REM sleep, but with less frequency. Finally, deprivation of REM sleep caused severe hindrance in cognitive development, which agrees with past studies on humans.
After reading this article, I am inclined to encourage my students to get adequate sleep before coming to class. I am almost tempted to have them sleep in class (like nap time way back in elementary school), but that might raise some issues with the higher-ups at the University.
In all seriousness, I think it is important to limit how much new material students are taught in one day so that they have the opportunity to “sleep on it” and absorb a higher percentage of what they have been exposed to. Also, we instructors should repeat important points in multiple lectures so the concepts “stick” in our students’ minds.

Have you ever become frustrated with someone who just didn’t seem motivated about something? As a college instructor, I come across this issue frequently and it can really get on my nerves. For obvious reasons, this blog post topic about motivating students was an intriguing one for me, so much so that I was willing to forgo my usual off-topic opening tangent (you’re welcome).
