Background: Several studies have demonstrated that brief interactions with natural environments can improve cognitive functioning. However, the neurocognitive processes that are affected by natural surroundings are not yet fully understood. It is argued that the "elements" in natural environment evoke "effortless" involuntary attention and may affect the neural mechanisms underlying inhibition control central to directed attention.
Methods: The present study used electroencephalography (EEG) to investigate the effects of nature experience on neurocognitive processes involved in directed attention. During EEG recordings, participants ( = 53) were presented nature audio/video as stimuli to evoke nature experience, and flanker task was administered both before and after nature experience. An open eye rest condition was included randomly in either before or after nature experience cognitive task as a control condition.
Results: The event-related potential analysis demonstrated a significant improvement in the response time after the nature experience. The analysis also demonstrated a significant difference for the inhibitory control process in fronto-parietal N2 ( < .01) and P3 ( < .05) for incongruent trials subsequent to nature experience. The spectral analysis also found an increase in alpha in all five brain regions (all s < .01) and fronto-central theta power ( < .01).
Conclusion: The findings suggest that improved inhibitory control processes could be one of the aspects of enhanced directed attention after nature experience. Increased alpha along with theta indicates a relaxed yet alert state of mind after nature experience.
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| http://dx.doi.org/10.1177/0972753121990143 | DOI Listing |
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