2024 Yes Is Brief Exposure to Green Space in School the Best Option to Improve Attention in Children? http://doi.org/10.3390/ijerph18147484 Anabitarte, Asier Europe Experimental Students Elementary (K-5) Green space Cognitive Function Attention network test Natural spaces Mental health Reml Crossover trial in four schools used the Attention Network Test to assess attention in 167 students after exposure to green vs. grey spaces; results did not support the hypothesis that green space improved attentional performance. 2021