I have always had a problem with daydreaming. I probably spent about 60 percent of my time in school as a kid off somewhere which actually is not too terrible. It's been estimated that we spend a third to half of our lives daydreaming. I was always chastised for it because the standard thinking is that it shows a lack of focus, respect and work ethic. Now new research from the Max Plank Institute confirms a theory that's been around for a while. Daydreaming is not idleness. It's a healthy, sort of cat-like readiness. Your brain has about twenty different networks that can be firing on all cylinders but not at once. There is a kind of competition up there and if one network is taking command, the others take a backseat. That's why multitasking isn't actually multitasking. The network that controls daydreaming is called the default network and it comes into play when nothing is happening that your brain considers important.
Our brain has three main regions for daydreaming:
1. The medial prefrontal cortex
- The medial prefrontal cortex helps imagine ourselves and the thoughts and feelings of others.
2. The posterior cingulate cortex
- The posterior cingulate cortex draws personal memories from the brain.
3. The parietal cortex
- The parietal cortex has major connections with the hippocampus (which stores episodic memories i.e. what you ate for breakfast)
These are areas that handle big important things like planning, personality, and processing information and with all their executive powers combined, they make you zone out on your drive home and imagine you are a werewolf. Admittedly, that doesn't sound useful. Also, imagining being a werewolf might just be a me thing. Unimportant doesn't mean that the activity is useless by the way. Your teacher's presentation is useful, driving home safely is useful but you don't really need all your brain power for it. You've driven home a million times. You can do it without total focus. But your brain is not a lazy place. It doesn't like to be idle. So if another network isn't needed, it switches to the default network. As silly as my werewolf daydreams may sound, daydreaming, imagination and self-referential thought are incredibly complex tasks. It's sort of a mental training exercise.
It can also serve a purpose to the dreams we have at night, helping us process information and figuring things out - sort of a Spring cleaning. We may not be focusing on something immediately important like your teacher's presentation but it could be important for long-term goal planning and learning. And you know, you need downtime. Just like you can't always be running at full speed, you can't always be working at your top mental capacity. If you're getting stressed, flustered or unproductive, switching into default mode can help you lower your stress levels, organize all the input being thrown at you, and come back to clarity and efficiency. Have you ever snapped out of a daydream with an answer to a problem that was bugging you? There you go. The nice thing about the default network is that it allows for an easy override. The second something important happens like an unexpected red light or a teacher calling your name, it immediately surrenders control back to the important stuff. So the next time someone calls you lazy for daydreaming, you just let them know you are defragged, organized and three steps ahead of them.
We have a whole network of bustling memories and streaming movies - starring ourselves - in our head. Let your brain ramble.
Still there? Tell us: What do you daydream about?