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Forest plot illustrating the standardized mean differences (SMD), individual effect sizes, overall effect size and heterogeneity statistics for the meta-analysis examining changes in beta power from a control (non-stressed) condition to a stress condition. Hafeez et al., 2018, Perrin et al., 2019 and Ehrhardt et al., 2021 report a control condition - reactive phase comparison; Betti et al., 2018 and Guo et al., 2019 report a baseline - recovery phase comparison.
