Expressions like “Go outside” or “touch grass” are popular responses in online debates these days. For many of us who might feel a bit overwhelmed by too much screen time, it turns out there’s some real wisdom in that advice.
The New York Times highlights growing research suggesting that just being outdoors can rejuvenate our attention spans, which can feel pretty drained after scrolling through various platforms. This concept is part of what’s known as “attention restoration theory.” While the idea of needing to “clear your head” isn’t exactly groundbreaking, scientists are still debating why nature exerts this influence.
“There’s accumulating evidence that walking in nature positively affects our attention,” said Gloria Mark, a professor at the University of California, Irvine. But she cautioned that it’s still just a theory: “We don’t know if that’s the true explanation of what’s happening.”
Attention restoration theory was first proposed in the 1980s by psychologists Rachel and Stephen Kaplan. They argued that our attention spans are limited and require recharging, as the NYT outlines. Nature seems to play a role in that recharge for reasons yet to be fully understood.
In a 2008 study involving University of Michigan students, half of the participants walked through an arboretum, while the other half wandered city streets. Tests on attention and memory taken before and after their walks revealed nearly a 20 percent improvement among those who enjoyed time among the trees.
“You didn’t need to enjoy the nature walk for it to be effective,” said Marc Berman, a psychologist from the University of Chicago who led the study. Interestingly, it didn’t matter if it was a brisk winter day or a pleasant summer one; the cognitive benefits remained consistent.
The Kaplans emphasized that nature is “softly fascinating,” naturally drawing our attention without overwhelming us. In contrast, city environments tend to bombard us with their hectic structures. Building on this, Berman believes specific characteristics of nature—like gentle curves and fractals—might help our brains relax.
“That could provide our minds a much-needed break, which is perhaps why we observe these effects,” he shared.
A recent eye-tracking study supports this idea. Participants showed less eye movement when viewing nature scenes compared to urban ones. However, researchers couldn’t pin down exactly why that was happening.
Amy McDonnell from the University of Utah replicated Berman’s study using EEG technology to monitor brain activity. The results indicated that those who walked in nature exhibited less brain activity afterward and recovered more readily when asked to focus on attention tasks, according to the NYT.
Both McDonnell’s research and the eye-tracking study lend credence to the notion that something significant is occurring—though dissecting its precise nature may be complex. McDonnell acknowledged that some of the science might seem a bit “hand-wavy,” which is a valid concern. We often romanticize nature, attributing it with almost mystical qualities, but perhaps it’s more about the environmental change itself. Maybe this effect arises from the stark difference between urban and rural settings rather than being inherently tied to nature.
Whatever the case may be, it might be worth taking a stroll through the woods and pondering over it.
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