Short answer: Often yes, according to a well-established body of research showing that nature exposure, whether an actual walk or simply viewing natural scenes, improves performance on tasks requiring focused attention and working memory compared to urban environments. The leading explanation is Attention Restoration Theory, which proposes that nature engages attention in an effortless way that lets overtaxed mental resources recover. That said, not every study finds a cognitive benefit, and the effect appears more reliable for some kinds of thinking than others.
The Foundational Research
The most influential study in this area comes from psychologists Marc Berman, John Jonides, and Stephen Kaplan, who tested whether interacting with nature genuinely restores attention rather than just improving mood. Across two experiments, participants either walked through a natural setting or an urban one, or viewed photographs of nature versus urban scenes. The study found that walking in nature or simply viewing pictures of nature improved performance on a backward digit-span task and an attention-network task, both measures of directed attention, compared to the urban conditions, providing real experimental support for what the researchers called Attention Restoration Theory.
The theory itself offers a specific mechanism, not just a general claim that nature is pleasant. It proposes that focused, effortful attention, the kind needed to work, study, or navigate a busy city street while filtering out constant competing stimuli, is a genuinely limited resource that gets depleted with use. Nature environments, according to this framework, are visually and sensorily engaging enough to hold interest without requiring that same effortful, top-down control, allowing the depleted attentional system a chance to recover passively while still being occupied by something engaging rather than simply resting in a blank space.
The Effect Has Been Replicated Across Different Methods
This isn’t a single, isolated finding. Related studies have found that viewing nature photographs improves performance on sustained-attention tasks compared to viewing urban images, and that walking through natural greenspace, compared to walking through an urban environment, benefits verbal working memory, cognitive control, and concentration across multiple independent research teams. A more recent study extended this into brain activity directly, finding that even brief indoor exposure to real plants and greenery, measured through EEG brainwave patterns, produced patterns consistent with improved working memory performance and greater perceived mental restoration compared to a plant-free control setting, suggesting the effect doesn’t require a full outdoor walk to show up, at least to some degree.
Where the Evidence Gets More Mixed
Here’s the honest complication: not every study finds a clean cognitive benefit from nature exposure, and some more recent, carefully controlled research has specifically pushed back on how consistent the effect really is. A study designed explicitly to test inconsistencies in the existing literature, using two separate control conditions to rule out alternative explanations, found that walking in nature improved participants’ mood but did not produce the expected cognitive benefits, only partially supporting Attention Restoration Theory. The researchers pointed out that simply being outside, regardless of whether the setting was natural or urban, might account for some of the benefit seen in earlier studies that didn’t carefully separate “outdoors” from “natural.”
This kind of inconsistency doesn’t mean the theory is wrong, but it does mean the cognitive effect is less bulletproof than the mood effect. Across the broader research literature, the improvement in self-reported mood and reduced stress after nature exposure tends to show up more reliably and consistently than the improvement in objectively measured cognitive test performance, which varies more depending on the specific task, the study design, and the control conditions used.
An Interesting Nuance: The Type of Attention Required Matters
One study using a simulated nature walk on a treadmill helped clarify part of why results vary so much between studies. Researchers found that a simulated nature scene improved directed-attention performance on a working memory task after a walk, but that this benefit disappeared entirely when participants were also required to engage in effortful, top-down mental processing during the walk itself, essentially demanding the same kind of directed attention nature exposure is supposed to be restoring. This fits neatly with the core logic of Attention Restoration Theory: the benefit seems to depend specifically on nature being experienced passively, without competing demands on the same attentional system, which may help explain why studies with different walk conditions, distractions, or instructions produce such varied results.
What This Means in Practice
- Expect a mood and stress benefit more reliably than a guaranteed cognitive boost. The evidence for reduced stress and improved affect from nature exposure is more consistent across studies than the cognitive performance findings specifically.
- If you’re seeking an attention-restoring break, keep it passive. Since effortful mental engagement during the nature exposure appears to cancel out the benefit, a walk spent problem-solving or on a work call likely won’t provide the same restorative effect as one where your mind is free to wander.
- Indoor greenery may offer a smaller version of the effect. If a full outdoor walk isn’t practical, research suggests even brief exposure to real plants indoors can produce some measurable benefit, though likely not as strong as time genuinely outdoors.
- Don’t expect nature exposure to substitute for other cognitive strategies on demanding tasks. Given how inconsistent the direct cognitive-performance findings are, treat a nature break as a plausible aid to attention and mood rather than a guaranteed performance enhancer for a specific task.
There’s real, replicated evidence that time in nature can restore depleted attention, not just improve your mood, though the cognitive benefit is somewhat more fragile and condition-dependent than the emotional one. Either way, a walk that lets your mind wander freely, rather than one spent solving problems, seems to be where the actual restorative effect lives.
