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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: J Cogn Enhanc. 2020 Jan 23;4(3):340–367. doi: 10.1007/s41465-019-00144-5

Figure 2.

Figure 2.

Study design characteristics of longitudinal studies of mindfulness training. Spheres represent existing longitudinal training studies examining the impact of mindfulness training on facets of attention (labeled with their study numbers as listed in Table 1 (A-C)). Concentric layers are used to denote the presence of the first four study design issues discussed in the manuscript. The clustered “pearls of wisdom” denote studies that followed CONSORT guidelines.