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. 2021 Sep 16;12:739966. doi: 10.3389/fphar.2021.739966

TABLE 3.

Overview of means, mean differences and p-values on the Rey-Osterrieth Complex Figure Task.

Study Serotonergic psychedelic Control Weight Mean difference
Mean (SD) N Mean (SD) N
ROCF–Copy (p = 0.26, I 2 = 57%)
Barbosa et al. (2016)* 33.05 (3.07) 30 33.444 (2.77) 27 11.9% −0.39 [−1.91, 1.12]
Doering-Silveira et al. (2005a) 34.64 (1.46) 40 34.08 (2.58) 40 32.6% 0.56 [−0.36, 1.48]
Halpern et al. (2005) 33.9 (2.1) 61 33.6 (2.1) 78 55.5% 0.30 [−0.40, 1.00]
ROCF–Delayed recall (p = 0.14; I 2 = 0%)
Barbosa et al. (2016)* 22.88 (7.51) 30 21.648 (6.03) 27 15.6% 1.23 [−2.29, 4.75]
Doering-Silveira et al. (2005b) 21.89 (5.0) 40 21.69 (6.79) 40 28.2% 0.20 [−2.41, 2.81]
Halpern et al. (2005) 22.9 (5.7) 61 21.5 (5.3) 78 56.2% 1.40 [−0.45, 3.25]

* = Means and standard deviation courtesy of Barbosa et al.; N, sample size; SD, standard deviation; ROCF, Rey-Osterrieth Complex Figure Test